Merging origin/dev into feat/assignment-page

README.md

@@ -21,14 +21,16 @@ Alternatief kan je één van de volgende methodes gebruiken om de applicatie lok
 
 ### Quick start
 
+Om de applicatie lokaal te draaien als kant-en-klare Docker-containers:
+
 1. Installeer Docker en Docker Compose op je systeem (zie [Docker](https://docs.docker.com/get-docker/)
    en [Docker Compose](https://docs.docker.com/compose/)).
 2. Clone deze repository.
-3. In de backend, kopieer `.env.example` (of `.env.development.example`) naar `.env` en pas de variabelen aan waar
+3. In de backend, kopieer `.env.example` naar `.env` en pas de variabelen aan waar nodig.
-   nodig.
+4. Voer `docker compose -f compose.staging.yml up --build` uit in de root van de repository.
-4. Voer `docker compose up` uit in de root van de repository.
 5. Optioneel: Configureer de applicatie aan de hand van
    de [configuratiehandleiding](https://github.com/SELab-2/Dwengo-1/wiki/Administrator:-Productie-omgeving#dwengo-1-configuratie).
+6. De applicatie is nu beschikbaar op [`http://localhost/`](http://localhost/) en [`http://localhost/api`](http://localhost/api).
 
 ```bash
 docker compose version
@@ -38,14 +40,13 @@ cp .env.example .env
 # Pas .env aan
 nano .env
 cd ..
-docker compose up
+docker compose -f compose.staging.yml up --build
-# Configureer de applicatie
 ```
 
-### Handmatige installatie
+### Handmatige installatie en ontwikkeling
 
 Zie de submappen voor de installatie-instructies van de [frontend](./frontend/README.md)
-en [backend](./backend/README.md).
+en [backend](./backend/README.md) en instructies voor het opzetten van een ontwikkelomgeving.
 
 ## Architectuur
 

backend/.env.development.example

@@ -1,15 +1,24 @@
 #
-# Basic configuration
+# Development environment configuration
+#
+# You probably don't need to change these values, as this configuration takes
+# the docker services and their default ports into account.
 #
 
-DWENGO_PORT=3000 # The port the backend will listen on
+### Dwengo ###
+
+#DWENGO_PORT=3000
+#DWENGO_LEARNING_CONTENT_REPO_API_BASE_URL=https://dwengo.org/backend/api
+#DWENGO_FALLBACK_LANGUAGE=nl
+#DWENGO_RUN_MODE=dev
+
 DWENGO_DB_HOST=localhost
 DWENGO_DB_PORT=5431
+#DWENGO_DB_NAME=dwengo
 DWENGO_DB_USERNAME=postgres
 DWENGO_DB_PASSWORD=postgres
 DWENGO_DB_UPDATE=true
-
+#DWENGO_DB_CONTENT_PREFIX=u_
-# Auth
 
 DWENGO_AUTH_STUDENT_URL=http://localhost:7080/realms/student
 DWENGO_AUTH_STUDENT_CLIENT_ID=dwengo
@@ -17,12 +26,12 @@ DWENGO_AUTH_STUDENT_JWKS_ENDPOINT=http://localhost:7080/realms/student/protocol/
 DWENGO_AUTH_TEACHER_URL=http://localhost:7080/realms/teacher
 DWENGO_AUTH_TEACHER_CLIENT_ID=dwengo
 DWENGO_AUTH_TEACHER_JWKS_ENDPOINT=http://localhost:7080/realms/teacher/protocol/openid-connect/certs
+#DWENGO_AUTH_AUDIENCE=account
 
-# Allow Vite dev-server to access the backend (for testing purposes). Don't forget to remove this in production!
 DWENGO_CORS_ALLOWED_ORIGINS=http://localhost:5173
+#DWENGO_CORS_ALLOWED_HEADERS=Authorization,Content-Type
 
-#
+### Advanced configuration ###
-# Advanced configuration
-#
 
-# LOKI_HOST=http://localhost:9001      # The address of the Loki instance, used for logging
+DWENGO_LOGGING_LEVEL=debug
+#DWENGO_LOGGING_LOKI_HOST=http://localhost:3102

backend/.env.example

@@ -1,27 +1,68 @@
 #
 # Basic configuration
 #
+# Change the values of the variables below to match your environment!
+# Default values are commented out.
+#
 
-DWENGO_PORT=3000 # The port the backend will listen on
+### Dwengo ###
+
+# Port the backend will listen on
+#DWENGO_PORT=3000
+# The hostname or IP address of the remote learning content API.
+#DWENGO_LEARNING_CONTENT_REPO_API_BASE_URL=https://dwengo.org/backend/api
+# The default fallback language.
+#DWENGO_FALLBACK_LANGUAGE=nl
+# Whether running in production mode or not. Possible values are "prod" or "dev".
+#DWENGO_RUN_MODE=dev
+
+# ! Change this! The hostname or IP address of the database
+# If running your stack in docker, this should use the docker service name.
 DWENGO_DB_HOST=domain-or-ip-of-database
-DWENGO_DB_PORT=5431
+# The port of the database.
-
+#DWENGO_DB_PORT=5432
-# Change this to the actual credentials of the user Dwengo should use in the backend
+# The name of the database.
-DWENGO_DB_USERNAME=postgres
+#DWENGO_DB_NAME=dwengo
-DWENGO_DB_PASSWORD=postgres
+# ! Change this! The username of the database user.
-
+DWENGO_DB_USERNAME=username
+# ! Change this! The password of the database user.
+DWENGO_DB_PASSWORD=password
+# Whether the database scheme needs to be updated.
 # Set this to true when the database scheme needs to be updated. In that case, take a backup first.
-DWENGO_DB_UPDATE=false
+#DWENGO_DB_UPDATE=false
+# The prefix used for custom user content.
+#DWENGO_DB_CONTENT_PREFIX=u_
 
-# Data for the identity provider via which the students authenticate.
+# ! Change this! The external URL for student authentication. Should be reachable by the client.
-DWENGO_AUTH_STUDENT_URL=http://localhost:7080/realms/student
+# E.g. https://sel2-1.ugent.be/idp/realms/student
+DWENGO_AUTH_STUDENT_URL=http://hostname/idp/realms/student
+# ! Change this! The client ID for student authentication.
 DWENGO_AUTH_STUDENT_CLIENT_ID=dwengo
-DWENGO_AUTH_STUDENT_JWKS_ENDPOINT=http://localhost:7080/realms/student/protocol/openid-connect/certs
+# ! Change this! The internal URL for retrieving the JWKS for student authentication.
-
+# Should be reachable by the backend. If running your stack in docker, this should use the docker service name.
-# Data for the identity provider via which the teachers authenticate.
+# E.g. http://idp:7080/realms/student/protocol/openid-connect/certs
-DWENGO_AUTH_TEACHER_URL=http://localhost:7080/realms/teacher
+DWENGO_AUTH_STUDENT_JWKS_ENDPOINT=http://hostname/realms/student/protocol/openid-connect/certs
+# ! Change this! The external URL for teacher authentication. Should be reachable by the client.
+# E.g. https://sel2-1.ugent.be/idp/realms/teacher
+DWENGO_AUTH_TEACHER_URL=http://hostname/idp/realms/teacher
+# ! Change this! The client ID for teacher authentication.
 DWENGO_AUTH_TEACHER_CLIENT_ID=dwengo
-DWENGO_AUTH_TEACHER_JWKS_ENDPOINT=http://localhost:7080/realms/teacher/protocol/openid-connect/certs
+# ! Change this! The internal URL for retrieving the JWKS for teacher authentication.
+# Should be reachable by the backend. If running your stack in docker, this should use the docker service name.
+# E.g. http://idp:7080/realms/teacher/protocol/openid-connect/certs
+DWENGO_AUTH_TEACHER_JWKS_ENDPOINT=http://hostname/realms/teacher/protocol/openid-connect/certs
+# The IDP audience
+#DWENGO_AUTH_AUDIENCE=account
 
-# The address of the Lokiinstance, used for logging
+# Allowed origins for CORS requests. Separate multiple origins with a comma.
-# LOKI_HOST=http://localhost:3102
+#DWENGO_CORS_ALLOWED_ORIGINS=
+# Allowed headers for CORS requests. Separate multiple headers with a comma.
+#DWENGO_CORS_ALLOWED_HEADERS=Authorization,Content-Type
+
+### Advanced configuration ###
+
+# The logging level. Possible values are "debug", "info", "warn", "error".
+#DWENGO_LOGGING_LEVEL=info
+# The address of the Loki instance, a log aggregation system.
+# If running your stack in docker, this should use the docker service name.
+#DWENGO_LOGGING_LOKI_HOST=http://localhost:3102

backend/.env.production.example

@@ -1,28 +1,37 @@
-DWENGO_PORT=3000 # The port the backend will listen on
+#
-DWENGO_DB_HOST=db # Name of the database container
+# Production environment configuration
-DWENGO_DB_PORT=5431
+#
+# Change the values of the variables below to match your production environment!
+# See .env.example for more information.
+#
 
-# Change this to the actual credentials of the user Dwengo should use in the backend
+### Dwengo ###
+
+DWENGO_PORT=3000
+#DWENGO_LEARNING_CONTENT_REPO_API_BASE_URL=https://dwengo.org/backend/api
+#DWENGO_FALLBACK_LANGUAGE=nl
+DWENGO_RUN_MODE=prod
+
+DWENGO_DB_HOST=db
+DWENGO_DB_PORT=5432
 DWENGO_DB_NAME=postgres
 DWENGO_DB_USERNAME=postgres
 DWENGO_DB_PASSWORD=postgres
-
-# Set this to true when the database scheme needs to be updated. In that case, take a backup first.
 DWENGO_DB_UPDATE=false
+#DWENGO_DB_CONTENT_PREFIX=u_
 
-# Data for the identity provider via which the students authenticate.
 DWENGO_AUTH_STUDENT_URL=https://sel2-1.ugent.be/idp/realms/student
 DWENGO_AUTH_STUDENT_CLIENT_ID=dwengo
 DWENGO_AUTH_STUDENT_JWKS_ENDPOINT=http://idp:7080/idp/realms/student/protocol/openid-connect/certs # Name of the idp container
-# Data for the identity provider via which the teachers authenticate.
 DWENGO_AUTH_TEACHER_URL=https://sel2-1.ugent.be/idp/realms/teacher
 DWENGO_AUTH_TEACHER_CLIENT_ID=dwengo
 DWENGO_AUTH_TEACHER_JWKS_ENDPOINT=http://idp:7080/idp/realms/teacher/protocol/openid-connect/certs # Name of the idp container
+#DWENGO_AUTH_AUDIENCE=account
 
-#
+#DWENGO_CORS_ALLOWED_ORIGINS=
-# Advanced configuration
+#DWENGO_CORS_ALLOWED_HEADERS=Authorization,Content-Type
-#
 
-# Logging and monitoring
+### Advanced configuration ###
 
-# LOKI_HOST=http://logging:3102 # The address of the Loki instance, used for logging
+DWENGO_LOGGING_LEVEL=info
+DWENGO_LOGGING_LOKI_HOST=http://logging:3102

backend/.env.test.example

@@ -1,3 +1,13 @@
-PORT=3000
+#
-DWENGO_DB_UPDATE=true
+# Test environment configuration
+#
+# Should not need to be modified.
+# See .env.example for more information.
+#
+
+### Dwengo ###
+
+DWENGO_PORT=3000
+
 DWENGO_DB_NAME=":memory:"
+DWENGO_DB_UPDATE=true

backend/Dockerfile

@@ -30,6 +30,7 @@ COPY package-lock.json backend/package.json ./
 RUN npm install --silent --only=production
 
 COPY ./docs /docs
+COPY ./backend/i18n /app/i18n
 COPY --from=build-stage /app/backend/dist ./dist/
 
 EXPOSE 3000

backend/README.md

@@ -4,23 +4,24 @@
 
 ```shell
 npm install
+
+# Start de nodige services voor ontwikkeling
+cd ../ # Ga naar de root van de repository
+docker compose up -d
 ```
 
-Setup the environment variables in a `.env` file in the root of the project. You can use the `.env.example` file as a template.
+Zet de omgevingsvariabelen in een `.env` bestand in de root van het project.
+Je kan het `.env.example` bestand als template gebruiken.
 
-### Development
+### Ontwikkeling
 
 ```shell
+# Omgevingsvariabelen
+cp .env.development.example .env.development.local
+
 npm run dev
 ```
 
-### Production
-
-```shell
-npm run build
-npm run start
-```
-
 ### Tests
 
 Voer volgend commando uit om de unit tests uit te voeren:
@@ -29,6 +30,18 @@ Voer volgend commando uit om de unit tests uit te voeren:
 npm run test:unit
 ```
 
+### Productie
+
+```shell
+# Omgevingsvariabelen
+cp .env.development.example .env
+
+npm run build
+npm run start
+```
+
+Zie ook de [installatiehandleiding](https://github.com/SELab-2/Dwengo-1/wiki/Administrator:-Productie-omgeving).
+
 ## Keycloak configuratie
 
 Tijdens development is het voldoende om gebruik te maken van de keycloak configuratie die automatisch ingeladen wordt.

backend/src/app.ts

@@ -9,6 +9,7 @@ import { EnvVars, getNumericEnvVar } from './util/envvars.js';
 import apiRouter from './routes/router.js';
 import swaggerMiddleware from './swagger.js';
 import swaggerUi from 'swagger-ui-express';
+import { errorHandler } from './middleware/error-handling/error-handler.js';
 
 const logger: Logger = getLogger();
 
@@ -26,6 +27,8 @@ app.use('/api', apiRouter);
 // Swagger
 app.use('/api-docs', swaggerUi.serve, swaggerMiddleware);
 
+app.use(errorHandler);
+
 async function startServer() {
     await initORM();
 

backend/src/config.ts

@@ -1,12 +1,7 @@
 import { EnvVars, getEnvVar } from './util/envvars.js';
-import { Language } from './entities/content/language.js';
 
 // API
 export const DWENGO_API_BASE = getEnvVar(EnvVars.LearningContentRepoApiBaseUrl);
 export const FALLBACK_LANG = getEnvVar(EnvVars.FallbackLanguage);
 
-// Logging
-export const LOG_LEVEL: string = 'development' === process.env.NODE_ENV ? 'debug' : 'info';
-export const LOKI_HOST: string = process.env.LOKI_HOST || 'http://localhost:3102';
-
 export const FALLBACK_SEQ_NUM = 1;

backend/src/controllers/assignments.ts

@@ -37,7 +37,7 @@ export async function createAssignmentHandler(req: Request<AssignmentParams>, re
         return;
     }
 
-    res.status(201).json({ assignment: assignment });
+    res.status(201).json(assignment);
 }
 
 export async function getAssignmentHandler(req: Request<AssignmentParams>, res: Response): Promise<void> {
@@ -62,13 +62,14 @@ export async function getAssignmentHandler(req: Request<AssignmentParams>, res:
 export async function getAssignmentsSubmissionsHandler(req: Request<AssignmentParams>, res: Response): Promise<void> {
     const classid = req.params.classid;
     const assignmentNumber = +req.params.id;
+    const full = req.query.full === 'true';
 
     if (isNaN(assignmentNumber)) {
         res.status(400).json({ error: 'Assignment id must be a number' });
         return;
     }
 
-    const submissions = await getAssignmentsSubmissions(classid, assignmentNumber);
+    const submissions = await getAssignmentsSubmissions(classid, assignmentNumber, full);
 
     res.json({
         submissions: submissions,

backend/src/controllers/classes.ts

@@ -1,5 +1,5 @@
 import { Request, Response } from 'express';
-import { createClass, getAllClasses, getClass, getClassStudents, getClassStudentsIds, getClassTeacherInvitations } from '../services/class.js';
+import { createClass, getAllClasses, getClass, getClassStudents, getClassStudentsIds, getClassTeacherInvitations } from '../services/classes.js';
 import { ClassDTO } from '../interfaces/class.js';
 
 export async function getAllClassesHandler(req: Request, res: Response): Promise<void> {
@@ -28,11 +28,10 @@ export async function createClassHandler(req: Request, res: Response): Promise<v
         return;
     }
 
-    res.status(201).json({ class: cls });
+    res.status(201).json(cls);
 }
 
 export async function getClassHandler(req: Request, res: Response): Promise<void> {
-    try {
     const classId = req.params.id;
     const cls = await getClass(classId);
 
@@ -40,18 +39,8 @@ export async function getClassHandler(req: Request, res: Response): Promise<void
         res.status(404).json({ error: 'Class not found' });
         return;
     }
-        cls.endpoints = {
-            self: `${req.baseUrl}/${req.params.id}`,
-            invitations: `${req.baseUrl}/${req.params.id}/invitations`,
-            assignments: `${req.baseUrl}/${req.params.id}/assignments`,
-            students: `${req.baseUrl}/${req.params.id}/students`,
-        };
 
     res.json(cls);
-    } catch (error) {
-        console.error('Error fetching learning objects:', error);
-        res.status(500).json({ error: 'Internal server error' });
-    }
 }
 
 export async function getClassStudentsHandler(req: Request, res: Response): Promise<void> {
@@ -67,7 +56,7 @@ export async function getClassStudentsHandler(req: Request, res: Response): Prom
 
 export async function getTeacherInvitationsHandler(req: Request, res: Response): Promise<void> {
     const classId = req.params.id;
-    const full = req.query.full === 'true'; // TODO: not implemented yet
+    const full = req.query.full === 'true';
 
     const invitations = await getClassTeacherInvitations(classId, full);
 

backend/src/controllers/groups.ts

@@ -28,6 +28,11 @@ export async function getGroupHandler(req: Request<GroupParams>, res: Response):
 
     const group = await getGroup(classId, assignmentId, groupId, full);
 
+    if (!group) {
+        res.status(404).json({ error: 'Group not found' });
+        return;
+    }
+
     res.json(group);
 }
 
@@ -66,12 +71,12 @@ export async function createGroupHandler(req: Request, res: Response): Promise<v
         return;
     }
 
-    res.status(201).json({ group: group });
+    res.status(201).json(group);
 }
 
 export async function getGroupSubmissionsHandler(req: Request, res: Response): Promise<void> {
     const classId = req.params.classid;
-    // Const full = req.query.full === 'true';
+    const full = req.query.full === 'true';
 
     const assignmentId = +req.params.assignmentid;
 
@@ -87,7 +92,7 @@ export async function getGroupSubmissionsHandler(req: Request, res: Response): P
         return;
     }
 
-    const submissions = await getGroupSubmissions(classId, assignmentId, groupId);
+    const submissions = await getGroupSubmissions(classId, assignmentId, groupId, full);
 
     res.json({
         submissions: submissions,

backend/src/controllers/learning-objects.ts

@@ -4,9 +4,9 @@ import { FilteredLearningObject, LearningObjectIdentifier, LearningPathIdentifie
 import learningObjectService from '../services/learning-objects/learning-object-service.js';
 import { EnvVars, getEnvVar } from '../util/envvars.js';
 import { Language } from '../entities/content/language.js';
-import { BadRequestException } from '../exceptions.js';
 import attachmentService from '../services/learning-objects/attachment-service.js';
 import { NotFoundError } from '@mikro-orm/core';
+import { BadRequestException } from '../exceptions/bad-request-exception.js';
 
 function getLearningObjectIdentifierFromRequest(req: Request): LearningObjectIdentifier {
     if (!req.params.hruid) {
@@ -40,7 +40,7 @@ export async function getAllLearningObjects(req: Request, res: Response): Promis
         learningObjects = await learningObjectService.getLearningObjectIdsFromPath(learningPathId);
     }
 
-    res.json(learningObjects);
+    res.json({ learningObjects: learningObjects });
 }
 
 export async function getLearningObject(req: Request, res: Response): Promise<void> {

backend/src/controllers/learning-paths.ts

@@ -2,13 +2,14 @@ import { Request, Response } from 'express';
 import { themes } from '../data/themes.js';
 import { FALLBACK_LANG } from '../config.js';
 import learningPathService from '../services/learning-paths/learning-path-service.js';
-import { BadRequestException, NotFoundException } from '../exceptions.js';
 import { Language } from '../entities/content/language.js';
 import {
     PersonalizationTarget,
     personalizedForGroup,
     personalizedForStudent,
 } from '../services/learning-paths/learning-path-personalization-util.js';
+import { BadRequestException } from '../exceptions/bad-request-exception.js';
+import { NotFoundException } from '../exceptions/not-found-exception.js';
 
 /**
  * Fetch learning paths based on query parameters.

backend/src/controllers/questions.ts

@@ -48,7 +48,7 @@ export async function getAllQuestionsHandler(req: Request, res: Response): Promi
     if (!questions) {
         res.status(404).json({ error: `Questions not found.` });
     } else {
-        res.json(questions);
+        res.json({ questions: questions });
     }
 }
 
@@ -76,12 +76,12 @@ export async function getQuestionAnswersHandler(req: Request, res: Response): Pr
         return;
     }
 
-    const answers = getAnswersByQuestion(questionId, full);
+    const answers = await getAnswersByQuestion(questionId, full);
 
     if (!answers) {
-        res.status(404).json({ error: `Questions not found.` });
+        res.status(404).json({ error: `Questions not found` });
     } else {
-        res.json(answers);
+        res.json({ answers: answers });
     }
 }
 
@@ -96,7 +96,7 @@ export async function createQuestionHandler(req: Request, res: Response): Promis
     const question = await createQuestion(questionDTO);
 
     if (!question) {
-        res.status(400).json({ error: 'Could not add question' });
+        res.status(400).json({ error: 'Could not create question' });
     } else {
         res.json(question);
     }

backend/src/controllers/students.ts

@@ -9,29 +9,21 @@ import {
     getStudentGroups,
     getStudentSubmissions,
 } from '../services/students.js';
-import { ClassDTO } from '../interfaces/class.js';
-import { getAllAssignments } from '../services/assignments.js';
-import { getUserHandler } from './users.js';
-import { Student } from '../entities/users/student.entity.js';
 import { StudentDTO } from '../interfaces/student.js';
-import { getStudentRepository } from '../data/repositories.js';
-import { UserDTO } from '../interfaces/user.js';
 
 // TODO: accept arguments (full, ...)
 // TODO: endpoints
 export async function getAllStudentsHandler(req: Request, res: Response): Promise<void> {
     const full = req.query.full === 'true';
 
-    const studentRepository = getStudentRepository();
+    const students = await getAllStudents(full);
-
-    const students: StudentDTO[] | string[] = full ? await getAllStudents() : await getAllStudents();
 
     if (!students) {
         res.status(404).json({ error: `Student not found.` });
         return;
     }
 
-    res.status(201).json(students);
+    res.json({ students: students });
 }
 
 export async function getStudentHandler(req: Request, res: Response): Promise<void> {
@@ -51,7 +43,7 @@ export async function getStudentHandler(req: Request, res: Response): Promise<vo
         return;
     }
 
-    res.status(201).json(user);
+    res.json(user);
 }
 
 export async function createStudentHandler(req: Request, res: Response) {
@@ -65,6 +57,14 @@ export async function createStudentHandler(req: Request, res: Response) {
     }
 
     const newUser = await createStudent(userData);
+
+    if (!newUser) {
+        res.status(500).json({
+            error: 'Something went wrong while creating student',
+        });
+        return;
+    }
+
     res.status(201).json(newUser);
 }
 
@@ -88,7 +88,6 @@ export async function deleteStudentHandler(req: Request, res: Response) {
 }
 
 export async function getStudentClassesHandler(req: Request, res: Response): Promise<void> {
-    try {
     const full = req.query.full === 'true';
     const username = req.params.id;
 
@@ -96,17 +95,7 @@ export async function getStudentClassesHandler(req: Request, res: Response): Pro
 
     res.json({
         classes: classes,
-            endpoints: {
-                self: `${req.baseUrl}/${req.params.id}`,
-                classes: `${req.baseUrl}/${req.params.id}/invitations`,
-                questions: `${req.baseUrl}/${req.params.id}/assignments`,
-                students: `${req.baseUrl}/${req.params.id}/students`,
-            },
     });
-    } catch (error) {
-        console.error('Error fetching learning objects:', error);
-        res.status(500).json({ error: 'Internal server error' });
-    }
 }
 
 // TODO
@@ -137,8 +126,9 @@ export async function getStudentGroupsHandler(req: Request, res: Response): Prom
 
 export async function getStudentSubmissionsHandler(req: Request, res: Response): Promise<void> {
     const username = req.params.id;
+    const full = req.query.full === 'true';
 
-    const submissions = await getStudentSubmissions(username);
+    const submissions = await getStudentSubmissions(username, full);
 
     res.json({
         submissions: submissions,

backend/src/controllers/submissions.ts

@@ -36,10 +36,11 @@ export async function createSubmissionHandler(req: Request, res: Response) {
     const submission = await createSubmission(submissionDTO);
 
     if (!submission) {
-        res.status(404).json({ error: 'Submission not added' });
+        res.status(400).json({ error: 'Failed to create submission' });
-    } else {
+        return;
-        res.json(submission);
     }
+
+    res.json(submission);
 }
 
 export async function deleteSubmissionHandler(req: Request, res: Response) {
@@ -53,7 +54,8 @@ export async function deleteSubmissionHandler(req: Request, res: Response) {
 
     if (!submission) {
         res.status(404).json({ error: 'Submission not found' });
-    } else {
+        return;
-        res.json(submission);
     }
+
+    res.json(submission);
 }

backend/src/controllers/teachers.ts

@@ -4,33 +4,23 @@ import {
     deleteTeacher,
     getAllTeachers,
     getClassesByTeacher,
-    getClassIdsByTeacher,
-    getQuestionIdsByTeacher,
     getQuestionsByTeacher,
-    getStudentIdsByTeacher,
     getStudentsByTeacher,
     getTeacher,
 } from '../services/teachers.js';
-import { ClassDTO } from '../interfaces/class.js';
-import { StudentDTO } from '../interfaces/student.js';
-import { QuestionDTO, QuestionId } from '../interfaces/question.js';
-import { Teacher } from '../entities/users/teacher.entity.js';
 import { TeacherDTO } from '../interfaces/teacher.js';
-import { getTeacherRepository } from '../data/repositories.js';
 
 export async function getAllTeachersHandler(req: Request, res: Response): Promise<void> {
     const full = req.query.full === 'true';
 
-    const teacherRepository = getTeacherRepository();
+    const teachers = await getAllTeachers(full);
-
-    const teachers: TeacherDTO[] | string[] = full ? await getAllTeachers() : await getAllTeachers();
 
     if (!teachers) {
         res.status(404).json({ error: `Teacher not found.` });
         return;
     }
 
-    res.status(201).json(teachers);
+    res.json({ teachers: teachers });
 }
 
 export async function getTeacherHandler(req: Request, res: Response): Promise<void> {
@@ -45,12 +35,12 @@ export async function getTeacherHandler(req: Request, res: Response): Promise<vo
 
     if (!user) {
         res.status(404).json({
-            error: `User with username '${username}' not found.`,
+            error: `Teacher '${username}' not found.`,
         });
         return;
     }
 
-    res.status(201).json(user);
+    res.json(user);
 }
 
 export async function createTeacherHandler(req: Request, res: Response) {
@@ -64,6 +54,12 @@ export async function createTeacherHandler(req: Request, res: Response) {
     }
 
     const newUser = await createTeacher(userData);
+
+    if (!newUser) {
+        res.status(400).json({ error: 'Failed to create teacher' });
+        return;
+    }
+
     res.status(201).json(newUser);
 }
 
@@ -78,7 +74,7 @@ export async function deleteTeacherHandler(req: Request, res: Response) {
     const deletedUser = await deleteTeacher(username);
     if (!deletedUser) {
         res.status(404).json({
-            error: `User with username '${username}' not found.`,
+            error: `User '${username}' not found.`,
         });
         return;
     }
@@ -87,7 +83,6 @@ export async function deleteTeacherHandler(req: Request, res: Response) {
 }
 
 export async function getTeacherClassHandler(req: Request, res: Response): Promise<void> {
-    try {
     const username = req.params.username as string;
     const full = req.query.full === 'true';
 
@@ -96,17 +91,17 @@ export async function getTeacherClassHandler(req: Request, res: Response): Promi
         return;
     }
 
-        const classes: ClassDTO[] | string[] = full ? await getClassesByTeacher(username) : await getClassIdsByTeacher(username);
+    const classes = await getClassesByTeacher(username, full);
 
-        res.status(201).json(classes);
+    if (!classes) {
-    } catch (error) {
+        res.status(404).json({ error: 'Teacher not found' });
-        console.error('Error fetching classes by teacher:', error);
+        return;
-        res.status(500).json({ error: 'Internal server error' });
     }
+
+    res.json({ classes: classes });
 }
 
 export async function getTeacherStudentHandler(req: Request, res: Response): Promise<void> {
-    try {
     const username = req.params.username as string;
     const full = req.query.full === 'true';
 
@@ -115,17 +110,17 @@ export async function getTeacherStudentHandler(req: Request, res: Response): Pro
         return;
     }
 
-        const students: StudentDTO[] | string[] = full ? await getStudentsByTeacher(username) : await getStudentIdsByTeacher(username);
+    const students = await getStudentsByTeacher(username, full);
 
-        res.status(201).json(students);
+    if (!students) {
-    } catch (error) {
+        res.status(404).json({ error: 'Teacher not found' });
-        console.error('Error fetching students by teacher:', error);
+        return;
-        res.status(500).json({ error: 'Internal server error' });
     }
+
+    res.json({ students: students });
 }
 
 export async function getTeacherQuestionHandler(req: Request, res: Response): Promise<void> {
-    try {
     const username = req.params.username as string;
     const full = req.query.full === 'true';
 
@@ -134,11 +129,12 @@ export async function getTeacherQuestionHandler(req: Request, res: Response): Pr
         return;
     }
 
-        const questions: QuestionDTO[] | QuestionId[] = full ? await getQuestionsByTeacher(username) : await getQuestionIdsByTeacher(username);
+    const questions = await getQuestionsByTeacher(username, full);
 
-        res.status(201).json(questions);
+    if (!questions) {
-    } catch (error) {
+        res.status(404).json({ error: 'Teacher not found' });
-        console.error('Error fetching questions by teacher:', error);
+        return;
-        res.status(500).json({ error: 'Internal server error' });
     }
+
+    res.json({ questions: questions });
 }

backend/src/controllers/users.ts

@@ -1,91 +0,0 @@
-import { Request, Response } from 'express';
-import { UserService } from '../services/users.js';
-import { UserDTO } from '../interfaces/user.js';
-import { User } from '../entities/users/user.entity.js';
-
-export async function getAllUsersHandler<T extends User>(req: Request, res: Response, service: UserService<T>): Promise<void> {
-    try {
-        const full = req.query.full === 'true';
-
-        const users: UserDTO[] | string[] = full ? await service.getAllUsers() : await service.getAllUserIds();
-
-        if (!users) {
-            res.status(404).json({ error: `Users not found.` });
-            return;
-        }
-
-        res.status(201).json(users);
-    } catch (error) {
-        console.error('❌ Error fetching users:', error);
-        res.status(500).json({ error: 'Internal server error' });
-    }
-}
-
-export async function getUserHandler<T extends User>(req: Request, res: Response, service: UserService<T>): Promise<void> {
-    try {
-        const username = req.params.username as string;
-
-        if (!username) {
-            res.status(400).json({ error: 'Missing required field: username' });
-            return;
-        }
-
-        const user = await service.getUserByUsername(username);
-
-        if (!user) {
-            res.status(404).json({
-                error: `User with username '${username}' not found.`,
-            });
-            return;
-        }
-
-        res.status(201).json(user);
-    } catch (error) {
-        console.error('❌ Error fetching users:', error);
-        res.status(500).json({ error: 'Internal server error' });
-    }
-}
-
-export async function createUserHandler<T extends User>(req: Request, res: Response, service: UserService<T>, UserClass: new () => T) {
-    try {
-        console.log('req', req);
-        const userData = req.body as UserDTO;
-
-        if (!userData.username || !userData.firstName || !userData.lastName) {
-            res.status(400).json({
-                error: 'Missing required fields: username, firstName, lastName',
-            });
-            return;
-        }
-
-        const newUser = await service.createUser(userData, UserClass);
-        res.status(201).json(newUser);
-    } catch (error) {
-        console.error('❌ Error creating user:', error);
-        res.status(500).json({ error: 'Internal server error' });
-    }
-}
-
-export async function deleteUserHandler<T extends User>(req: Request, res: Response, service: UserService<T>) {
-    try {
-        const username = req.params.username;
-
-        if (!username) {
-            res.status(400).json({ error: 'Missing required field: username' });
-            return;
-        }
-
-        const deletedUser = await service.deleteUser(username);
-        if (!deletedUser) {
-            res.status(404).json({
-                error: `User with username '${username}' not found.`,
-            });
-            return;
-        }
-
-        res.status(200).json(deletedUser);
-    } catch (error) {
-        console.error('❌ Error deleting user:', error);
-        res.status(500).json({ error: 'Internal server error' });
-    }
-}

backend/src/data/dwengo-entity-repository.ts

@@ -1,10 +1,12 @@
 import { EntityRepository, FilterQuery } from '@mikro-orm/core';
+import { EntityAlreadyExistsException } from '../exceptions/entity-already-exists-exception.js';
 
 export abstract class DwengoEntityRepository<T extends object> extends EntityRepository<T> {
-    public async save(entity: T) {
+    public async save(entity: T, options?: { preventOverwrite?: boolean }): Promise<void> {
-        const em = this.getEntityManager();
+        if (options?.preventOverwrite && (await this.findOne(entity))) {
-        em.persist(entity);
+            throw new EntityAlreadyExistsException(`A ${this.getEntityName()} with this identifier already exists.`);
-        await em.flush();
+        }
+        await this.getEntityManager().persistAndFlush(entity);
     }
     public async deleteWhere(query: FilterQuery<T>) {
         const toDelete = await this.findOne(query);

backend/src/data/repositories.ts

@@ -2,8 +2,6 @@ import { AnyEntity, EntityManager, EntityName, EntityRepository } from '@mikro-o
 import { forkEntityManager } from '../orm.js';
 import { StudentRepository } from './users/student-repository.js';
 import { Student } from '../entities/users/student.entity.js';
-import { User } from '../entities/users/user.entity.js';
-import { UserRepository } from './users/user-repository.js';
 import { Teacher } from '../entities/users/teacher.entity.js';
 import { TeacherRepository } from './users/teacher-repository.js';
 import { Class } from '../entities/classes/class.entity.js';

backend/src/data/users/student-repository.ts

@@ -1,5 +1,4 @@
 import { Student } from '../../entities/users/student.entity.js';
-import { User } from '../../entities/users/user.entity.js';
 import { DwengoEntityRepository } from '../dwengo-entity-repository.js';
 // Import { UserRepository } from './user-repository.js';
 

backend/src/data/users/teacher-repository.ts

@@ -1,6 +1,5 @@
 import { Teacher } from '../../entities/users/teacher.entity.js';
 import { DwengoEntityRepository } from '../dwengo-entity-repository.js';
-import { UserRepository } from './user-repository.js';
 
 export class TeacherRepository extends DwengoEntityRepository<Teacher> {
     public findByUsername(username: string): Promise<Teacher | null> {

backend/src/entities/assignments/assignment.entity.ts

@@ -1,4 +1,4 @@
-import { Collection, Entity, Enum, ManyToOne, OneToMany, PrimaryKey, Property } from '@mikro-orm/core';
+import { Entity, Enum, ManyToOne, OneToMany, PrimaryKey, Property } from '@mikro-orm/core';
 import { Class } from '../classes/class.entity.js';
 import { Group } from './group.entity.js';
 import { Language } from '../content/language.js';

backend/src/entities/assignments/group.entity.ts

@@ -1,4 +1,4 @@
-import { Collection, Entity, ManyToMany, ManyToOne, PrimaryKey } from '@mikro-orm/core';
+import { Entity, ManyToMany, ManyToOne, PrimaryKey } from '@mikro-orm/core';
 import { Assignment } from './assignment.entity.js';
 import { Student } from '../users/student.entity.js';
 import { GroupRepository } from '../../data/assignments/group-repository.js';

backend/src/entities/classes/class-join-request.entity.ts

@@ -3,6 +3,12 @@ import { Student } from '../users/student.entity.js';
 import { Class } from './class.entity.js';
 import { ClassJoinRequestRepository } from '../../data/classes/class-join-request-repository.js';
 
+export enum ClassJoinRequestStatus {
+    Open = 'open',
+    Accepted = 'accepted',
+    Declined = 'declined',
+}
+
 @Entity({
     repository: () => ClassJoinRequestRepository,
 })
@@ -22,9 +28,3 @@ export class ClassJoinRequest {
     @Enum(() => ClassJoinRequestStatus)
     status!: ClassJoinRequestStatus;
 }
-
-export enum ClassJoinRequestStatus {
-    Open = 'open',
-    Accepted = 'accepted',
-    Declined = 'declined',
-}

backend/src/entities/users/student.entity.ts

@@ -13,12 +13,4 @@ export class Student extends User {
 
     @ManyToMany(() => Group)
     groups!: Collection<Group>;
-
-    constructor(
-        public username: string,
-        public firstName: string,
-        public lastName: string
-    ) {
-        super();
-    }
 }

backend/src/entities/users/teacher.entity.ts

@@ -7,12 +7,4 @@ import { TeacherRepository } from '../../data/users/teacher-repository.js';
 export class Teacher extends User {
     @ManyToMany(() => Class)
     classes!: Collection<Class>;
-
-    constructor(
-        public username: string,
-        public firstName: string,
-        public lastName: string
-    ) {
-        super();
-    }
 }

backend/src/exceptions.ts

@@ -1,42 +0,0 @@
-/**
- * Exception for HTTP 400 Bad Request
- */
-export class BadRequestException extends Error {
-    public status = 400;
-
-    constructor(error: string) {
-        super(error);
-    }
-}
-
-/**
- * Exception for HTTP 401 Unauthorized
- */
-export class UnauthorizedException extends Error {
-    status = 401;
-    constructor(message: string = 'Unauthorized') {
-        super(message);
-    }
-}
-
-/**
- * Exception for HTTP 403 Forbidden
- */
-export class ForbiddenException extends Error {
-    status = 403;
-
-    constructor(message: string = 'Forbidden') {
-        super(message);
-    }
-}
-
-/**
- * Exception for HTTP 404 Not Found
- */
-export class NotFoundException extends Error {
-    public status = 404;
-
-    constructor(error: string) {
-        super(error);
-    }
-}

backend/src/exceptions/bad-request-exception.ts

@@ -0,0 +1,10 @@
+import { ExceptionWithHttpState } from './exception-with-http-state.js';
+
+/**
+ * Exception for HTTP 400 Bad Request
+ */
+export class BadRequestException extends ExceptionWithHttpState {
+    constructor(error: string) {
+        super(400, error);
+    }
+}

backend/src/exceptions/conflict-exception.ts

@@ -0,0 +1,12 @@
+import { ExceptionWithHttpState } from './exception-with-http-state.js';
+
+/**
+ * Exception for HTTP 409 Conflict
+ */
+export class ConflictException extends ExceptionWithHttpState {
+    public status = 409;
+
+    constructor(error: string) {
+        super(409, error);
+    }
+}

backend/src/exceptions/entity-already-exists-exception.ts

@@ -0,0 +1,7 @@
+import { ConflictException } from './conflict-exception.js';
+
+export class EntityAlreadyExistsException extends ConflictException {
+    constructor(message: string) {
+        super(message);
+    }
+}

backend/src/exceptions/exception-with-http-state.ts

@@ -0,0 +1,11 @@
+/**
+ * Exceptions which are associated with a HTTP error code.
+ */
+export abstract class ExceptionWithHttpState extends Error {
+    constructor(
+        public status: number,
+        public error: string
+    ) {
+        super(error);
+    }
+}

backend/src/exceptions/forbidden-exception.ts

@@ -0,0 +1,12 @@
+import { ExceptionWithHttpState } from './exception-with-http-state.js';
+
+/**
+ * Exception for HTTP 403 Forbidden
+ */
+export class ForbiddenException extends ExceptionWithHttpState {
+    status = 403;
+
+    constructor(message: string = 'Forbidden') {
+        super(403, message);
+    }
+}

backend/src/exceptions/not-found-exception.ts

@@ -0,0 +1,12 @@
+import { ExceptionWithHttpState } from './exception-with-http-state.js';
+
+/**
+ * Exception for HTTP 404 Not Found
+ */
+export class NotFoundException extends ExceptionWithHttpState {
+    public status = 404;
+
+    constructor(error: string) {
+        super(404, error);
+    }
+}

backend/src/exceptions/unauthorized-exception.ts

@@ -0,0 +1,10 @@
+import { ExceptionWithHttpState } from './exception-with-http-state.js';
+
+/**
+ * Exception for HTTP 401 Unauthorized
+ */
+export class UnauthorizedException extends ExceptionWithHttpState {
+    constructor(message: string = 'Unauthorized') {
+        super(401, message);
+    }
+}

backend/src/interfaces/assignment.ts

@@ -2,7 +2,7 @@ import { FALLBACK_LANG } from '../config.js';
 import { Assignment } from '../entities/assignments/assignment.entity.js';
 import { Class } from '../entities/classes/class.entity.js';
 import { languageMap } from '../entities/content/language.js';
-import { GroupDTO, mapToGroupDTO } from './group.js';
+import { GroupDTO } from './group.js';
 
 export interface AssignmentDTO {
     id: number;
@@ -46,7 +46,5 @@ export function mapToAssignment(assignmentData: AssignmentDTO, cls: Class): Assi
     assignment.learningPathLanguage = languageMap[assignmentData.language] || FALLBACK_LANG;
     assignment.within = cls;
 
-    console.log(assignment);
-
     return assignment;
 }

backend/src/interfaces/class.ts

@@ -9,12 +9,6 @@ export interface ClassDTO {
     teachers: string[];
     students: string[];
     joinRequests: string[];
-    endpoints?: {
-        self: string;
-        invitations: string;
-        assignments: string;
-        students: string;
-    };
 }
 
 export function mapToClassDTO(cls: Class): ClassDTO {

backend/src/interfaces/question.ts

@@ -1,8 +1,6 @@
 import { Question } from '../entities/questions/question.entity.js';
-import { UserDTO } from './user.js';
 import { LearningObjectIdentifier } from '../entities/content/learning-object-identifier.js';
 import { mapToStudentDTO, StudentDTO } from './student.js';
-import { TeacherDTO } from './teacher.js';
 
 export interface QuestionDTO {
     learningObjectIdentifier: LearningObjectIdentifier;

backend/src/interfaces/student.ts

@@ -1,4 +1,5 @@
 import { Student } from '../entities/users/student.entity.js';
+import { getStudentRepository } from '../data/repositories.js';
 
 export interface StudentDTO {
     id: string;
@@ -23,7 +24,9 @@ export function mapToStudentDTO(student: Student): StudentDTO {
 }
 
 export function mapToStudent(studentData: StudentDTO): Student {
-    const student = new Student(studentData.username, studentData.firstName, studentData.lastName);
+    return getStudentRepository().create({
-
+        username: studentData.username,
-    return student;
+        firstName: studentData.firstName,
+        lastName: studentData.lastName,
+    });
 }

backend/src/interfaces/submission.ts

@@ -2,13 +2,10 @@ import { Submission } from '../entities/assignments/submission.entity.js';
 import { Language } from '../entities/content/language.js';
 import { GroupDTO, mapToGroupDTO } from './group.js';
 import { mapToStudent, mapToStudentDTO, StudentDTO } from './student.js';
-import { mapToUser } from './user';
+import { LearningObjectIdentifier } from './learning-content.js';
-import { Student } from '../entities/users/student.entity';
 
 export interface SubmissionDTO {
-    learningObjectHruid: string;
+    learningObjectIdentifier: LearningObjectIdentifier;
-    learningObjectLanguage: Language;
-    learningObjectVersion: number;
 
     submissionNumber?: number;
     submitter: StudentDTO;
@@ -17,11 +14,21 @@ export interface SubmissionDTO {
     content: string;
 }
 
+export interface SubmissionDTOId {
+    learningObjectHruid: string;
+    learningObjectLanguage: Language;
+    learningObjectVersion: number;
+
+    submissionNumber?: number;
+}
+
 export function mapToSubmissionDTO(submission: Submission): SubmissionDTO {
     return {
-        learningObjectHruid: submission.learningObjectHruid,
+        learningObjectIdentifier: {
-        learningObjectLanguage: submission.learningObjectLanguage,
+            hruid: submission.learningObjectHruid,
-        learningObjectVersion: submission.learningObjectVersion,
+            language: submission.learningObjectLanguage,
+            version: submission.learningObjectVersion,
+        },
 
         submissionNumber: submission.submissionNumber,
         submitter: mapToStudentDTO(submission.submitter),
@@ -31,11 +38,21 @@ export function mapToSubmissionDTO(submission: Submission): SubmissionDTO {
     };
 }
 
+export function mapToSubmissionDTOId(submission: Submission): SubmissionDTOId {
+    return {
+        learningObjectHruid: submission.learningObjectHruid,
+        learningObjectLanguage: submission.learningObjectLanguage,
+        learningObjectVersion: submission.learningObjectVersion,
+
+        submissionNumber: submission.submissionNumber,
+    };
+}
+
 export function mapToSubmission(submissionDTO: SubmissionDTO): Submission {
     const submission = new Submission();
-    submission.learningObjectHruid = submissionDTO.learningObjectHruid;
+    submission.learningObjectHruid = submissionDTO.learningObjectIdentifier.hruid;
-    submission.learningObjectLanguage = submissionDTO.learningObjectLanguage;
+    submission.learningObjectLanguage = submissionDTO.learningObjectIdentifier.language;
-    submission.learningObjectVersion = submissionDTO.learningObjectVersion;
+    submission.learningObjectVersion = submissionDTO.learningObjectIdentifier.version!;
     // Submission.submissionNumber = submissionDTO.submissionNumber;
     submission.submitter = mapToStudent(submissionDTO.submitter);
     // Submission.submissionTime = submissionDTO.time;

backend/src/interfaces/teacher.ts

@@ -1,4 +1,5 @@
 import { Teacher } from '../entities/users/teacher.entity.js';
+import { getTeacherRepository } from '../data/repositories.js';
 
 export interface TeacherDTO {
     id: string;
@@ -22,8 +23,10 @@ export function mapToTeacherDTO(teacher: Teacher): TeacherDTO {
     };
 }
 
-export function mapToTeacher(TeacherData: TeacherDTO): Teacher {
+export function mapToTeacher(teacherData: TeacherDTO): Teacher {
-    const teacher = new Teacher(TeacherData.username, TeacherData.firstName, TeacherData.lastName);
+    return getTeacherRepository().create({
-
+        username: teacherData.username,
-    return teacher;
+        firstName: teacherData.firstName,
+        lastName: teacherData.lastName,
+    });
 }

backend/src/logging/initalize.ts

@@ -1,7 +1,7 @@
 import { createLogger, format, Logger as WinstonLogger, transports } from 'winston';
 import LokiTransport from 'winston-loki';
 import { LokiLabels } from 'loki-logger-ts';
-import { LOG_LEVEL, LOKI_HOST } from '../config.js';
+import { EnvVars, getEnvVar } from '../util/envvars.js';
 
 export class Logger extends WinstonLogger {
     constructor() {
@@ -22,10 +22,25 @@ function initializeLogger(): Logger {
         return logger;
     }
 
+    const logLevel = getEnvVar(EnvVars.LogLevel);
+
+    const consoleTransport = new transports.Console({
+        level: getEnvVar(EnvVars.LogLevel),
+        format: format.combine(format.cli(), format.colorize()),
+    });
+
+    if (getEnvVar(EnvVars.RunMode) === 'dev') {
+        return createLogger({
+            transports: [consoleTransport],
+        });
+    }
+
+    const lokiHost = getEnvVar(EnvVars.LokiHost);
+
     const lokiTransport: LokiTransport = new LokiTransport({
-        host: LOKI_HOST,
+        host: lokiHost,
         labels: Labels,
-        level: LOG_LEVEL,
+        level: logLevel,
         json: true,
         format: format.combine(format.timestamp(), format.json()),
         onConnectionError: (err) => {
@@ -34,16 +49,11 @@ function initializeLogger(): Logger {
         },
     });
 
-    const consoleTransport = new transports.Console({
-        level: LOG_LEVEL,
-        format: format.combine(format.cli(), format.colorize()),
-    });
-
     logger = createLogger({
         transports: [lokiTransport, consoleTransport],
     });
 
-    logger.debug(`Logger initialized with level ${LOG_LEVEL}, Loki host ${LOKI_HOST}`);
+    logger.debug(`Logger initialized with level ${logLevel} to Loki host ${lokiHost}`);
     return logger;
 }
 

backend/src/middleware/auth/auth.ts

@@ -6,7 +6,8 @@ import * as express from 'express';
 import * as jwt from 'jsonwebtoken';
 import { AuthenticatedRequest } from './authenticated-request.js';
 import { AuthenticationInfo } from './authentication-info.js';
-import { ForbiddenException, UnauthorizedException } from '../../exceptions.js';
+import { UnauthorizedException } from '../../exceptions/unauthorized-exception.js';
+import { ForbiddenException } from '../../exceptions/forbidden-exception.js';
 
 const JWKS_CACHE = true;
 const JWKS_RATE_LIMIT = true;

backend/src/middleware/error-handling/error-handler.ts

@@ -0,0 +1,15 @@
+import { NextFunction, Request, Response } from 'express';
+import { getLogger, Logger } from '../../logging/initalize.js';
+import { ExceptionWithHttpState } from '../../exceptions/exception-with-http-state.js';
+
+const logger: Logger = getLogger();
+
+export function errorHandler(err: unknown, req: Request, res: Response, _: NextFunction): void {
+    if (err instanceof ExceptionWithHttpState) {
+        logger.warn(`An error occurred while handling a request: ${err} (-> HTTP ${err.status})`);
+        res.status(err.status).json(err);
+    } else {
+        logger.error(`Unexpected error occurred while handing a request: ${JSON.stringify(err)}`);
+        res.status(500).json(err);
+    }
+}

backend/src/mikro-orm.config.ts

@@ -3,7 +3,6 @@ import { PostgreSqlDriver } from '@mikro-orm/postgresql';
 import { EnvVars, getEnvVar, getNumericEnvVar } from './util/envvars.js';
 import { SqliteDriver } from '@mikro-orm/sqlite';
 import { MikroOrmLogger } from './logging/mikroOrmLogger.js';
-import { LOG_LEVEL } from './config.js';
 
 // Import alle entity-bestanden handmatig
 import { User } from './entities/users/user.entity.js';
@@ -50,6 +49,7 @@ function config(testingMode: boolean = false): Options {
             dbName: getEnvVar(EnvVars.DbName),
             subscribers: [new SqliteAutoincrementSubscriber()],
             entities: entities,
+            persistOnCreate: false, // Do not implicitly save entities when they are created via `create`.
             // EntitiesTs: entitiesTs,
 
             // Workaround: vitest: `TypeError: Unknown file extension ".ts"` (ERR_UNKNOWN_FILE_EXTENSION)
@@ -66,10 +66,11 @@ function config(testingMode: boolean = false): Options {
         user: getEnvVar(EnvVars.DbUsername),
         password: getEnvVar(EnvVars.DbPassword),
         entities: entities,
+        persistOnCreate: false, // Do not implicitly save entities when they are created via `create`.
         // EntitiesTs: entitiesTs,
 
         // Logging
-        debug: LOG_LEVEL === 'debug',
+        debug: getEnvVar(EnvVars.LogLevel) === 'debug',
         loggerFactory: (options: LoggerOptions) => new MikroOrmLogger(options),
     };
 }

backend/src/routes/router.ts

@@ -1,10 +1,7 @@
 import { Response, Router } from 'express';
 import studentRouter from './students.js';
-import groupRouter from './groups.js';
+import teacherRouter from './teachers.js';
-import assignmentRouter from './assignments.js';
-import submissionRouter from './submissions.js';
 import classRouter from './classes.js';
-import questionRouter from './questions.js';
 import authRouter from './auth.js';
 import themeRoutes from './themes.js';
 import learningPathRoutes from './learning-paths.js';
@@ -22,11 +19,8 @@ router.get('/', (_, res: Response) => {
 });
 
 router.use('/student', studentRouter /* #swagger.tags = ['Student'] */);
-router.use('/group', groupRouter /* #swagger.tags = ['Group'] */);
+router.use('/teacher', teacherRouter /* #swagger.tags = ['Teacher'] */);
-router.use('/assignment', assignmentRouter /* #swagger.tags = ['Assignment'] */);
-router.use('/submission', submissionRouter /* #swagger.tags = ['Submission'] */);
 router.use('/class', classRouter /* #swagger.tags = ['Class'] */);
-router.use('/question', questionRouter /* #swagger.tags = ['Question'] */);
 router.use('/auth', authRouter /* #swagger.tags = ['Auth'] */);
 router.use('/theme', themeRoutes /* #swagger.tags = ['Theme'] */);
 router.use('/learningPath', learningPathRoutes /* #swagger.tags = ['Learning Path'] */);

backend/src/routes/students.ts

@@ -9,7 +9,6 @@ import {
     getStudentHandler,
     getStudentSubmissionsHandler,
 } from '../controllers/students.js';
-import { getStudentGroups } from '../services/students.js';
 const router = express.Router();
 
 // Root endpoint used to search objects

backend/src/services/assignments.ts

@@ -1,7 +1,6 @@
 import { getAssignmentRepository, getClassRepository, getGroupRepository, getSubmissionRepository } from '../data/repositories.js';
-import { Assignment } from '../entities/assignments/assignment.entity.js';
 import { AssignmentDTO, mapToAssignment, mapToAssignmentDTO, mapToAssignmentDTOId } from '../interfaces/assignment.js';
-import { mapToSubmissionDTO, SubmissionDTO } from '../interfaces/submission.js';
+import { mapToSubmissionDTO, mapToSubmissionDTOId, SubmissionDTO, SubmissionDTOId } from '../interfaces/submission.js';
 
 export async function getAllAssignments(classid: string, full: boolean): Promise<AssignmentDTO[]> {
     const classRepository = getClassRepository();
@@ -21,7 +20,7 @@ export async function getAllAssignments(classid: string, full: boolean): Promise
     return assignments.map(mapToAssignmentDTOId);
 }
 
-export async function createAssignment(classid: string, assignmentData: AssignmentDTO): Promise<Assignment | null> {
+export async function createAssignment(classid: string, assignmentData: AssignmentDTO): Promise<AssignmentDTO | null> {
     const classRepository = getClassRepository();
     const cls = await classRepository.findById(classid);
 
@@ -36,8 +35,9 @@ export async function createAssignment(classid: string, assignmentData: Assignme
         const newAssignment = assignmentRepository.create(assignment);
         await assignmentRepository.save(newAssignment);
 
-        return newAssignment;
+        return mapToAssignmentDTO(newAssignment);
     } catch (e) {
+        console.error(e);
         return null;
     }
 }
@@ -60,7 +60,11 @@ export async function getAssignment(classid: string, id: number): Promise<Assign
     return mapToAssignmentDTO(assignment);
 }
 
-export async function getAssignmentsSubmissions(classid: string, assignmentNumber: number): Promise<SubmissionDTO[]> {
+export async function getAssignmentsSubmissions(
+    classid: string,
+    assignmentNumber: number,
+    full: boolean
+): Promise<SubmissionDTO[] | SubmissionDTOId[]> {
     const classRepository = getClassRepository();
     const cls = await classRepository.findById(classid);
 
@@ -81,5 +85,9 @@ export async function getAssignmentsSubmissions(classid: string, assignmentNumbe
     const submissionRepository = getSubmissionRepository();
     const submissions = (await Promise.all(groups.map((group) => submissionRepository.findAllSubmissionsForGroup(group)))).flat();
 
+    if (full) {
         return submissions.map(mapToSubmissionDTO);
+    }
+
+    return submissions.map(mapToSubmissionDTOId);
 }

backend/src/services/classes.ts

@@ -1,5 +1,4 @@
 import { getClassRepository, getStudentRepository, getTeacherInvitationRepository, getTeacherRepository } from '../data/repositories.js';
-import { Class } from '../entities/classes/class.entity.js';
 import { ClassDTO, mapToClassDTO } from '../interfaces/class.js';
 import { mapToStudentDTO, StudentDTO } from '../interfaces/student.js';
 import { mapToTeacherInvitationDTO, mapToTeacherInvitationDTOIds, TeacherInvitationDTO } from '../interfaces/teacher-invitation.js';
@@ -21,16 +20,14 @@ export async function getAllClasses(full: boolean): Promise<ClassDTO[] | string[
     return classes.map((cls) => cls.classId!);
 }
 
-export async function createClass(classData: ClassDTO): Promise<Class | null> {
+export async function createClass(classData: ClassDTO): Promise<ClassDTO | null> {
     const teacherRepository = getTeacherRepository();
     const teacherUsernames = classData.teachers || [];
-    const teachers = (await Promise.all(teacherUsernames.map((id) => teacherRepository.findByUsername(id)))).filter((teacher) => teacher != null);
+    const teachers = (await Promise.all(teacherUsernames.map((id) => teacherRepository.findByUsername(id)))).filter((teacher) => teacher !== null);
 
     const studentRepository = getStudentRepository();
     const studentUsernames = classData.students || [];
-    const students = (await Promise.all(studentUsernames.map((id) => studentRepository.findByUsername(id)))).filter((student) => student != null);
+    const students = (await Promise.all(studentUsernames.map((id) => studentRepository.findByUsername(id)))).filter((student) => student !== null);
-
-    //Const cls = mapToClass(classData, teachers, students);
 
     const classRepository = getClassRepository();
 
@@ -42,7 +39,7 @@ export async function createClass(classData: ClassDTO): Promise<Class | null> {
         });
         await classRepository.save(newClass);
 
-        return newClass;
+        return mapToClassDTO(newClass);
     } catch (e) {
         logger.error(e);
         return null;

backend/src/services/groups.ts

@@ -1,4 +1,3 @@
-import { GroupRepository } from '../data/assignments/group-repository.js';
 import {
     getAssignmentRepository,
     getClassRepository,
@@ -8,7 +7,7 @@ import {
 } from '../data/repositories.js';
 import { Group } from '../entities/assignments/group.entity.js';
 import { GroupDTO, mapToGroupDTO, mapToGroupDTOId } from '../interfaces/group.js';
-import { mapToSubmissionDTO, SubmissionDTO } from '../interfaces/submission.js';
+import { mapToSubmissionDTO, mapToSubmissionDTOId, SubmissionDTO, SubmissionDTOId } from '../interfaces/submission.js';
 
 export async function getGroup(classId: string, assignmentNumber: number, groupNumber: number, full: boolean): Promise<GroupDTO | null> {
     const classRepository = getClassRepository();
@@ -43,7 +42,7 @@ export async function createGroup(groupData: GroupDTO, classid: string, assignme
     const studentRepository = getStudentRepository();
 
     const memberUsernames = (groupData.members as string[]) || []; // TODO check if groupdata.members is a list
-    const members = (await Promise.all([...memberUsernames].map((id) => studentRepository.findByUsername(id)))).filter((student) => student != null);
+    const members = (await Promise.all([...memberUsernames].map((id) => studentRepository.findByUsername(id)))).filter((student) => student !== null);
 
     console.log(members);
 
@@ -103,7 +102,12 @@ export async function getAllGroups(classId: string, assignmentNumber: number, fu
     return groups.map(mapToGroupDTOId);
 }
 
-export async function getGroupSubmissions(classId: string, assignmentNumber: number, groupNumber: number): Promise<SubmissionDTO[]> {
+export async function getGroupSubmissions(
+    classId: string,
+    assignmentNumber: number,
+    groupNumber: number,
+    full: boolean
+): Promise<SubmissionDTO[] | SubmissionDTOId[]> {
     const classRepository = getClassRepository();
     const cls = await classRepository.findById(classId);
 
@@ -128,5 +132,9 @@ export async function getGroupSubmissions(classId: string, assignmentNumber: num
     const submissionRepository = getSubmissionRepository();
     const submissions = await submissionRepository.findAllSubmissionsForGroup(group);
 
+    if (full) {
         return submissions.map(mapToSubmissionDTO);
+    }
+
+    return submissions.map(mapToSubmissionDTOId);
 }

backend/src/services/learning-objects.ts

@@ -45,6 +45,13 @@ export async function getLearningObjectById(hruid: string, language: string): Pr
     return filterData(metadata, htmlUrl);
 }
 
+/**
+ * Generic function to fetch learning paths
+ */
+function fetchLearningPaths(arg0: string[], language: string, arg2: string): LearningPathResponse | PromiseLike<LearningPathResponse> {
+    throw new Error('Function not implemented.');
+}
+
 /**
  * Generic function to fetch learning objects (full data or just HRUIDs)
  */
@@ -85,6 +92,3 @@ export async function getLearningObjectsFromPath(hruid: string, language: string
 export async function getLearningObjectIdsFromPath(hruid: string, language: string): Promise<string[]> {
     return (await fetchLearningObjects(hruid, false, language)) as string[];
 }
-function fetchLearningPaths(arg0: string[], language: string, arg2: string): LearningPathResponse | PromiseLike<LearningPathResponse> {
-    throw new Error('Function not implemented.');
-}

backend/src/services/questions.ts

@@ -103,5 +103,5 @@ export async function deleteQuestion(questionId: QuestionId) {
         return null;
     }
 
-    return question;
+    return mapToQuestionDTO(question);
 }

backend/src/services/students.ts

@@ -1,23 +1,20 @@
 import { getClassRepository, getGroupRepository, getStudentRepository, getSubmissionRepository } from '../data/repositories.js';
-import { Class } from '../entities/classes/class.entity.js';
-import { Student } from '../entities/users/student.entity.js';
 import { AssignmentDTO } from '../interfaces/assignment.js';
 import { ClassDTO, mapToClassDTO } from '../interfaces/class.js';
 import { GroupDTO, mapToGroupDTO, mapToGroupDTOId } from '../interfaces/group.js';
 import { mapToStudent, mapToStudentDTO, StudentDTO } from '../interfaces/student.js';
-import { mapToSubmissionDTO, SubmissionDTO } from '../interfaces/submission.js';
+import { mapToSubmissionDTO, mapToSubmissionDTOId, SubmissionDTO, SubmissionDTOId } from '../interfaces/submission.js';
 import { getAllAssignments } from './assignments.js';
-import { UserService } from './users.js';
 
-export async function getAllStudents(): Promise<StudentDTO[]> {
+export async function getAllStudents(full: boolean): Promise<StudentDTO[] | string[]> {
     const studentRepository = getStudentRepository();
-    const users = await studentRepository.findAll();
+    const students = await studentRepository.findAll();
-    return users.map(mapToStudentDTO);
-}
 
-export async function getAllStudentIds(): Promise<string[]> {
+    if (full) {
-    const users = await getAllStudents();
+        return students.map(mapToStudentDTO);
-    return users.map((user) => user.username);
+    }
+
+    return students.map((student) => student.username);
 }
 
 export async function getStudent(username: string): Promise<StudentDTO | null> {
@@ -29,15 +26,9 @@ export async function getStudent(username: string): Promise<StudentDTO | null> {
 export async function createStudent(userData: StudentDTO): Promise<StudentDTO | null> {
     const studentRepository = getStudentRepository();
 
-    try {
+    const newStudent = mapToStudent(userData);
-        const newStudent = studentRepository.create(mapToStudent(userData));
+    await studentRepository.save(newStudent, { preventOverwrite: true });
-        await studentRepository.save(newStudent);
-
     return mapToStudentDTO(newStudent);
-    } catch (e) {
-        console.log(e);
-        return null;
-    }
 }
 
 export async function deleteStudent(username: string): Promise<StudentDTO | null> {
@@ -88,9 +79,7 @@ export async function getStudentAssignments(username: string, full: boolean): Pr
     const classRepository = getClassRepository();
     const classes = await classRepository.findByStudent(student);
 
-    const assignments = (await Promise.all(classes.map(async (cls) => await getAllAssignments(cls.classId!, full)))).flat();
+    return (await Promise.all(classes.map(async (cls) => await getAllAssignments(cls.classId!, full)))).flat();
-
-    return assignments;
 }
 
 export async function getStudentGroups(username: string, full: boolean): Promise<GroupDTO[]> {
@@ -111,7 +100,7 @@ export async function getStudentGroups(username: string, full: boolean): Promise
     return groups.map(mapToGroupDTOId);
 }
 
-export async function getStudentSubmissions(username: string): Promise<SubmissionDTO[]> {
+export async function getStudentSubmissions(username: string, full: boolean): Promise<SubmissionDTO[] | SubmissionDTOId[]> {
     const studentRepository = getStudentRepository();
     const student = await studentRepository.findByUsername(username);
 
@@ -122,5 +111,9 @@ export async function getStudentSubmissions(username: string): Promise<Submissio
     const submissionRepository = getSubmissionRepository();
     const submissions = await submissionRepository.findAllSubmissionsForStudent(student);
 
+    if (full) {
         return submissions.map(mapToSubmissionDTO);
+    }
+
+    return submissions.map(mapToSubmissionDTOId);
 }

backend/src/services/submissions.ts

@@ -32,7 +32,7 @@ export async function createSubmission(submissionDTO: SubmissionDTO) {
         return null;
     }
 
-    return submission;
+    return mapToSubmissionDTO(submission);
 }
 
 export async function deleteSubmission(learningObjectHruid: string, language: Language, version: number, submissionNumber: number) {

backend/src/services/teachers.ts

@@ -1,28 +1,19 @@
-import {
+import { getClassRepository, getLearningObjectRepository, getQuestionRepository, getTeacherRepository } from '../data/repositories.js';
-    getClassRepository,
-    getLearningObjectRepository,
-    getQuestionRepository,
-    getStudentRepository,
-    getTeacherRepository,
-} from '../data/repositories.js';
-import { Teacher } from '../entities/users/teacher.entity.js';
 import { ClassDTO, mapToClassDTO } from '../interfaces/class.js';
-import { getClassStudents } from './class.js';
+import { getClassStudents } from './classes.js';
 import { StudentDTO } from '../interfaces/student.js';
 import { mapToQuestionDTO, mapToQuestionId, QuestionDTO, QuestionId } from '../interfaces/question.js';
-import { UserService } from './users.js';
-import { mapToUser } from '../interfaces/user.js';
 import { mapToTeacher, mapToTeacherDTO, TeacherDTO } from '../interfaces/teacher.js';
 
-export async function getAllTeachers(): Promise<TeacherDTO[]> {
+export async function getAllTeachers(full: boolean): Promise<TeacherDTO[] | string[]> {
     const teacherRepository = getTeacherRepository();
-    const users = await teacherRepository.findAll();
+    const teachers = await teacherRepository.findAll();
-    return users.map(mapToTeacherDTO);
-}
 
-export async function getAllTeacherIds(): Promise<string[]> {
+    if (full) {
-    const users = await getAllTeachers();
+        return teachers.map(mapToTeacherDTO);
-    return users.map((user) => user.username);
+    }
+
+    return teachers.map((teacher) => teacher.username);
 }
 
 export async function getTeacher(username: string): Promise<TeacherDTO | null> {
@@ -34,15 +25,10 @@ export async function getTeacher(username: string): Promise<TeacherDTO | null> {
 export async function createTeacher(userData: TeacherDTO): Promise<TeacherDTO | null> {
     const teacherRepository = getTeacherRepository();
 
-    try {
+    const newTeacher = mapToTeacher(userData);
-        const newTeacher = teacherRepository.create(mapToTeacher(userData));
+    await teacherRepository.save(newTeacher, { preventOverwrite: true });
-        await teacherRepository.save(newTeacher);
 
     return mapToTeacherDTO(newTeacher);
-    } catch (e) {
-        console.log(e);
-        return null;
-    }
 }
 
 export async function deleteTeacher(username: string): Promise<TeacherDTO | null> {
@@ -64,11 +50,11 @@ export async function deleteTeacher(username: string): Promise<TeacherDTO | null
     }
 }
 
-export async function fetchClassesByTeacher(username: string): Promise<ClassDTO[]> {
+export async function fetchClassesByTeacher(username: string): Promise<ClassDTO[] | null> {
     const teacherRepository = getTeacherRepository();
     const teacher = await teacherRepository.findByUsername(username);
     if (!teacher) {
-        return [];
+        return null;
     }
 
     const classRepository = getClassRepository();
@@ -76,35 +62,49 @@ export async function fetchClassesByTeacher(username: string): Promise<ClassDTO[
     return classes.map(mapToClassDTO);
 }
 
-export async function getClassesByTeacher(username: string): Promise<ClassDTO[]> {
+export async function getClassesByTeacher(username: string, full: boolean): Promise<ClassDTO[] | string[] | null> {
-    return await fetchClassesByTeacher(username);
-}
-
-export async function getClassIdsByTeacher(username: string): Promise<string[]> {
     const classes = await fetchClassesByTeacher(username);
+
+    if (!classes) {
+        return null;
+    }
+
+    if (full) {
+        return classes;
+    }
+
     return classes.map((cls) => cls.id);
 }
 
-export async function fetchStudentsByTeacher(username: string) {
+export async function fetchStudentsByTeacher(username: string): Promise<StudentDTO[] | null> {
-    const classes = await getClassIdsByTeacher(username);
+    const classes = (await getClassesByTeacher(username, false)) as string[];
+
+    if (!classes) {
+        return null;
+    }
 
     return (await Promise.all(classes.map(async (id) => getClassStudents(id)))).flat();
 }
 
-export async function getStudentsByTeacher(username: string): Promise<StudentDTO[]> {
+export async function getStudentsByTeacher(username: string, full: boolean): Promise<StudentDTO[] | string[] | null> {
-    return await fetchStudentsByTeacher(username);
-}
-
-export async function getStudentIdsByTeacher(username: string): Promise<string[]> {
     const students = await fetchStudentsByTeacher(username);
+
+    if (!students) {
+        return null;
+    }
+
+    if (full) {
+        return students;
+    }
+
     return students.map((student) => student.username);
 }
 
-export async function fetchTeacherQuestions(username: string): Promise<QuestionDTO[]> {
+export async function fetchTeacherQuestions(username: string): Promise<QuestionDTO[] | null> {
     const teacherRepository = getTeacherRepository();
     const teacher = await teacherRepository.findByUsername(username);
     if (!teacher) {
-        throw new Error(`Teacher with username '${username}' not found.`);
+        return null;
     }
 
     // Find all learning objects that this teacher manages
@@ -118,12 +118,16 @@ export async function fetchTeacherQuestions(username: string): Promise<QuestionD
     return questions.map(mapToQuestionDTO);
 }
 
-export async function getQuestionsByTeacher(username: string): Promise<QuestionDTO[]> {
+export async function getQuestionsByTeacher(username: string, full: boolean): Promise<QuestionDTO[] | QuestionId[] | null> {
-    return await fetchTeacherQuestions(username);
-}
-
-export async function getQuestionIdsByTeacher(username: string): Promise<QuestionId[]> {
     const questions = await fetchTeacherQuestions(username);
 
+    if (!questions) {
+        return null;
+    }
+
+    if (full) {
+        return questions;
+    }
+
     return questions.map(mapToQuestionId);
 }

backend/src/services/users.ts

@@ -1,41 +0,0 @@
-import { UserRepository } from '../data/users/user-repository.js';
-import { UserDTO, mapToUser, mapToUserDTO } from '../interfaces/user.js';
-import { User } from '../entities/users/user.entity.js';
-
-export class UserService<T extends User> {
-    protected repository: UserRepository<T>;
-
-    constructor(repository: UserRepository<T>) {
-        this.repository = repository;
-    }
-
-    async getAllUsers(): Promise<UserDTO[]> {
-        const users = await this.repository.findAll();
-        return users.map(mapToUserDTO);
-    }
-
-    async getAllUserIds(): Promise<string[]> {
-        const users = await this.getAllUsers();
-        return users.map((user) => user.username);
-    }
-
-    async getUserByUsername(username: string): Promise<UserDTO | null> {
-        const user = await this.repository.findByUsername(username);
-        return user ? mapToUserDTO(user) : null;
-    }
-
-    async createUser(userData: UserDTO, UserClass: new () => T): Promise<T> {
-        const newUser = mapToUser(userData, new UserClass());
-        await this.repository.save(newUser);
-        return newUser;
-    }
-
-    async deleteUser(username: string): Promise<UserDTO | null> {
-        const user = await this.getUserByUsername(username);
-        if (!user) {
-            return null;
-        }
-        await this.repository.deleteByUsername(username);
-        return mapToUserDTO(user);
-    }
-}

backend/src/util/envvars.ts

@@ -4,20 +4,24 @@ const IDP_PREFIX = PREFIX + 'AUTH_';
 const STUDENT_IDP_PREFIX = IDP_PREFIX + 'STUDENT_';
 const TEACHER_IDP_PREFIX = IDP_PREFIX + 'TEACHER_';
 const CORS_PREFIX = PREFIX + 'CORS_';
+const LOGGING_PREFIX = PREFIX + 'LOGGING_';
 
 type EnvVar = { key: string; required?: boolean; defaultValue?: any };
 
 export const EnvVars: { [key: string]: EnvVar } = {
     Port: { key: PREFIX + 'PORT', defaultValue: 3000 },
+    LearningContentRepoApiBaseUrl: { key: PREFIX + 'LEARNING_CONTENT_REPO_API_BASE_URL', defaultValue: 'https://dwengo.org/backend/api' },
+    FallbackLanguage: { key: PREFIX + 'FALLBACK_LANGUAGE', defaultValue: 'nl' },
+    RunMode: { key: PREFIX + 'RUN_MODE', defaultValue: 'dev' },
+
     DbHost: { key: DB_PREFIX + 'HOST', required: true },
     DbPort: { key: DB_PREFIX + 'PORT', defaultValue: 5432 },
     DbName: { key: DB_PREFIX + 'NAME', defaultValue: 'dwengo' },
     DbUsername: { key: DB_PREFIX + 'USERNAME', required: true },
     DbPassword: { key: DB_PREFIX + 'PASSWORD', required: true },
     DbUpdate: { key: DB_PREFIX + 'UPDATE', defaultValue: false },
-    LearningContentRepoApiBaseUrl: { key: PREFIX + 'LEARNING_CONTENT_REPO_API_BASE_URL', defaultValue: 'https://dwengo.org/backend/api' },
-    FallbackLanguage: { key: PREFIX + 'FALLBACK_LANGUAGE', defaultValue: 'nl' },
     UserContentPrefix: { key: DB_PREFIX + 'USER_CONTENT_PREFIX', defaultValue: 'u_' },
+
     IdpStudentUrl: { key: STUDENT_IDP_PREFIX + 'URL', required: true },
     IdpStudentClientId: { key: STUDENT_IDP_PREFIX + 'CLIENT_ID', required: true },
     IdpStudentJwksEndpoint: { key: STUDENT_IDP_PREFIX + 'JWKS_ENDPOINT', required: true },
@@ -25,8 +29,12 @@ export const EnvVars: { [key: string]: EnvVar } = {
     IdpTeacherClientId: { key: TEACHER_IDP_PREFIX + 'CLIENT_ID', required: true },
     IdpTeacherJwksEndpoint: { key: TEACHER_IDP_PREFIX + 'JWKS_ENDPOINT', required: true },
     IdpAudience: { key: IDP_PREFIX + 'AUDIENCE', defaultValue: 'account' },
+
     CorsAllowedOrigins: { key: CORS_PREFIX + 'ALLOWED_ORIGINS', defaultValue: '' },
     CorsAllowedHeaders: { key: CORS_PREFIX + 'ALLOWED_HEADERS', defaultValue: 'Authorization,Content-Type' },
+
+    LogLevel: { key: LOGGING_PREFIX + 'LEVEL', defaultValue: 'info' },
+    LokiHost: { key: LOGGING_PREFIX + 'LOKI_HOST', defaultValue: 'http://localhost:3102' },
 } as const;
 
 /**

backend/src/util/translation-helper.ts

@@ -8,12 +8,12 @@ const logger: Logger = getLogger();
 
 export function loadTranslations<T>(language: string): T {
     try {
-        const filePath = path.join(process.cwd(), '_i18n', `${language}.yml`);
+        const filePath = path.join(process.cwd(), 'i18n', `${language}.yml`);
         const yamlFile = fs.readFileSync(filePath, 'utf8');
         return yaml.load(yamlFile) as T;
     } catch (error) {
         logger.warn(`Cannot load translation for ${language}, fallen back to dutch`, error);
-        const fallbackPath = path.join(process.cwd(), '_i18n', `${FALLBACK_LANG}.yml`);
+        const fallbackPath = path.join(process.cwd(), 'i18n', `${FALLBACK_LANG}.yml`);
         return yaml.load(fs.readFileSync(fallbackPath, 'utf8')) as T;
     }
 }

backend/tests/data/users/students.test.ts

@@ -1,5 +1,4 @@
 import { setupTestApp } from '../../setup-tests.js';
-import { Student } from '../../../src/entities/users/student.entity.js';
 import { describe, it, expect, beforeAll } from 'vitest';
 import { StudentRepository } from '../../../src/data/users/student-repository.js';
 import { getStudentRepository } from '../../../src/data/repositories.js';
@@ -30,7 +29,7 @@ describe('StudentRepository', () => {
     });
 
     it('should return the queried student after he was added', async () => {
-        await studentRepository.insert(new Student(username, firstName, lastName));
+        await studentRepository.insert(studentRepository.create({ username, firstName, lastName }));
 
         const retrievedStudent = await studentRepository.findByUsername(username);
         expect(retrievedStudent).toBeTruthy();

backend/tests/data/users/teachers.test.ts

@@ -2,7 +2,6 @@ import { describe, it, expect, beforeAll } from 'vitest';
 import { TeacherRepository } from '../../../src/data/users/teacher-repository';
 import { setupTestApp } from '../../setup-tests';
 import { getTeacherRepository } from '../../../src/data/repositories';
-import { Teacher } from '../../../src/entities/users/teacher.entity';
 
 const username = 'testteacher';
 const firstName = 'John';
@@ -30,7 +29,7 @@ describe('TeacherRepository', () => {
     });
 
     it('should return the queried teacher after he was added', async () => {
-        await teacherRepository.insert(new Teacher(username, firstName, lastName));
+        await teacherRepository.insert(teacherRepository.create({ username, firstName, lastName }));
 
         const retrievedTeacher = await teacherRepository.findByUsername(username);
         expect(retrievedTeacher).toBeTruthy();

compose.production.yml

@@ -1,7 +1,8 @@
 #
-# This file is used to define the production environment for the project.
+# Use this configuration to deploy the project on a server.
-# It is used to deploy the project on a server.
+#
-# Should not be used for local development.
+# This configuration builds the frontend and backend services as Docker images,
+# and uses the paths for the services, instead of ports, and enables SSL.
 #
 services:
     web:
@@ -35,12 +36,16 @@ services:
             - 'traefik.http.services.api.loadbalancer.server.port=3000'
 
     db:
-        # Also see compose.yml
+        extends:
+            file: ./compose.yml
+            service: db
         networks:
             - dwengo-1
 
     idp:
-        # Also see compose.yml
+        extends:
+            file: ./compose.yml
+            service: idp
         # TODO Replace with proper production command
         command: ['start-dev', '--http-port', '7080', '--https-port', '7443', '--import-realm']
         networks:
@@ -92,7 +97,15 @@ services:
             - dwengo-1
 
     logging:
-        # Also see compose.yml
+        image: grafana/loki:latest
+        ports:
+            - '9001:3102'
+            - '9095:9095'
+        command: -config.file=/etc/loki/config.yaml
+        restart: unless-stopped
+        volumes:
+            - ./config/loki/config.yml:/etc/loki/config.yaml
+            - dwengo_loki_data:/loki
         networks:
             - dwengo-1
 
@@ -107,6 +120,7 @@ services:
 volumes:
     dwengo_grafana_data:
     dwengo_letsencrypt:
+    dwengo_loki_data:
 
 networks:
     dwengo-1:

compose.staging.yml

@@ -32,8 +32,15 @@ services:
             - 'traefik.http.routers.api.rule=PathPrefix(`/api`)'
             - 'traefik.http.services.api.loadbalancer.server.port=3000'
 
+    db:
+        extends:
+            file: ./compose.yml
+            service: db
+
     idp:
-        # Also see compose.yml
+        extends:
+            file: ./compose.yml
+            service: idp
         labels:
             - 'traefik.http.routers.idp.rule=PathPrefix(`/idp`)'
             - 'traefik.http.services.idp.loadbalancer.server.port=7080'
@@ -60,6 +67,17 @@ services:
         volumes:
             - /var/run/docker.sock:/var/run/docker.sock:ro
 
+    logging:
+        image: grafana/loki:latest
+        ports:
+            - '9001:3102'
+            - '9095:9095'
+        command: -config.file=/etc/loki/config.yaml
+        restart: unless-stopped
+        volumes:
+            - ./config/loki/config.yml:/etc/loki/config.yaml
+            - dwengo_loki_data:/loki
+
     dashboards:
         image: grafana/grafana:latest
         ports:
@@ -70,3 +88,5 @@ services:
 
 volumes:
     dwengo_grafana_data:
+    dwengo_loki_data:
+    dwengo_postgres_data:

compose.yml

@@ -36,17 +36,5 @@ services:
             KC_HEALTH_ENABLED: 'true'
             KC_LOG_LEVEL: info
 
-    logging:
-        image: grafana/loki:latest
-        ports:
-            - '9001:3102'
-            - '9095:9095'
-        command: -config.file=/etc/loki/config.yaml
-        restart: unless-stopped
-        volumes:
-            - ./config/loki/config.yml:/etc/loki/config.yaml
-            - dwengo_loki_data:/loki
-
 volumes:
-    dwengo_loki_data:
     dwengo_postgres_data:

frontend/README.md

@@ -19,7 +19,16 @@ See [Vite Configuration Reference](https://vite.dev/config/).
 ## Project Setup
 
 ```sh
+# Install dependencies
 npm install
+
+# Start necessary services for development
+cd ../ # Go to the root of the repository
+docker compose up -d
+# Start the backend
+cd backend
+cp .env.development.example .env.development.local
+npm run dev # or npm run build && npm run start
 ```
 
 ### Compile and Hot-Reload for Development

frontend/package.json

@@ -42,7 +42,7 @@
         "jsdom": "^26.0.0",
         "npm-run-all2": "^7.0.2",
         "typescript": "~5.7.3",
-        "vite": "^6.1.0",
+        "vite": "^6.1.2",
         "vite-plugin-vue-devtools": "^7.7.2",
         "vitest": "^3.0.5",
         "vue-tsc": "^2.2.2"

frontend/src/App.vue

@@ -1,10 +1,26 @@
 <script setup lang="ts">
     import auth from "@/services/auth/auth-service.ts";
+    import MenuBar from "@/components/MenuBar.vue";
+    import { useRoute } from "vue-router";
+    import { computed } from "vue";
+
+    const route = useRoute();
     auth.loadUser();
+
+    interface RouteMeta {
+        requiresAuth?: boolean;
+    }
+
+    const showMenuBar = computed(() => (route.meta as RouteMeta).requiresAuth && auth.authState.user);
 </script>
 
 <template>
+    <v-app>
+        <menu-bar v-if="showMenuBar"></menu-bar>
+        <v-main>
             <router-view />
+        </v-main>
+    </v-app>
 </template>
 
 <style scoped></style>

frontend/src/components/BrowseThemes.vue

@@ -1,47 +1,56 @@
 <script setup lang="ts">
-import ThemeCard from "@/components/ThemeCard.vue";
+    import ThemeCard from "@/components/ThemeCard.vue";
-import { ref, watchEffect, computed } from "vue";
+    import { ref, watchEffect, computed } from "vue";
-import { useI18n } from "vue-i18n";
+    import { useI18n } from "vue-i18n";
-import { AGE_TO_THEMES, THEMESITEMS } from "@/utils/constants.ts";
+    import { AGE_TO_THEMES, THEMESITEMS } from "@/utils/constants.ts";
-import { useThemeQuery } from "@/queries/themes.ts";
+    import { useThemeQuery } from "@/queries/themes.ts";
 
-const props = defineProps({
+    const props = defineProps({
         selectedTheme: { type: String, required: true },
-    selectedAge: { type: String, required: true }
+        selectedAge: { type: String, required: true },
-});
+    });
 
-const { locale } = useI18n();
+    const { locale } = useI18n();
-const language = computed(() => locale.value);
+    const language = computed(() => locale.value);
 
-const { data: allThemes, isLoading, error } = useThemeQuery(language);
+    const { data: allThemes, isLoading, error } = useThemeQuery(language);
 
-const allCards = ref([]);
+    const allCards = ref([]);
-const cards = ref([]);
+    const cards = ref([]);
 
-watchEffect(() => {
+    watchEffect(() => {
         const themes = allThemes.value ?? [];
         allCards.value = themes;
 
         if (props.selectedTheme) {
-        cards.value = themes.filter((theme) =>
+            cards.value = themes.filter(
+                (theme) =>
                     THEMESITEMS[props.selectedTheme]?.includes(theme.key) &&
-            AGE_TO_THEMES[props.selectedAge]?.includes(theme.key)
+                    AGE_TO_THEMES[props.selectedAge]?.includes(theme.key),
             );
         } else {
             cards.value = themes;
         }
-});
+    });
 </script>
 
-
 <template>
     <v-container>
-        <div v-if="isLoading" class="text-center py-10">
+        <div
-            <v-progress-circular indeterminate color="primary" />
+            v-if="isLoading"
+            class="text-center py-10"
+        >
+            <v-progress-circular
+                indeterminate
+                color="primary"
+            />
             <p>Loading...</p>
         </div>
 
-        <div v-else-if="error" class="text-center py-10 text-error">
+        <div
+            v-else-if="error"
+            class="text-center py-10 text-error"
+        >
             <v-icon large>mdi-alert-circle</v-icon>
             <p>Error loading: {{ error.message }}</p>
         </div>

frontend/src/components/MenuBar.vue

@@ -22,7 +22,7 @@
         { name: "English", code: "en" },
         { name: "Nederlands", code: "nl" },
         { name: "Français", code: "fr" },
-        { name: "Deutsch", code: "de" }
+        { name: "Deutsch", code: "de" },
     ]);
 
     // Logic to change the language of the website to the selected language
@@ -31,29 +31,26 @@
         localStorage.setItem("user-lang", langCode);
     };
 
-    // contains functionality to let the collapsed menu appear and disappear
+    // Contains functionality to let the collapsed menu appear and disappear
-    // when the screen size varies
+    // When the screen size varies
     const drawer = ref(false);
 
-    // when the user wants to logout, a popup is shown to verify this
+    // When the user wants to logout, a popup is shown to verify this
-    // if verified, the user should be logged out
+    // If verified, the user should be logged out
     const performLogout = () => {
         auth.logout();
     };
 </script>
 
 <template>
-    <main>
-        <v-app class="menu_collapsed">
     <v-app-bar
+        class="app-bar"
         app
-                style="background-color: #f6faf2"
     >
-                <template v-slot:prepend>
+        <v-app-bar-nav-icon
-                    <v-app-bar-nav-icon @click="drawer = !drawer" />
+            class="menu_collapsed"
-                </template>
+            @click="drawer = !drawer"
-
+        />
-                <v-app-bar-title>
         <router-link
             to="/user"
             class="dwengo_home"
@@ -61,141 +58,36 @@
             <div>
                 <img
                     class="dwengo_logo"
-                                :src="dwengoLogo"
+                    alt="Dwengo logo"
-                                style="width: 100px"
-                            />
-                            <p
-                                class="caption"
-                                style="font-size: smaller"
-                            >
-                                {{ t(`${role}`) }}
-                            </p>
-                        </div>
-                    </router-link>
-                </v-app-bar-title>
-
-                <v-spacer></v-spacer>
-
-                <v-menu open-on-hover>
-                    <template v-slot:activator="{ props }">
-                        <v-btn
-                            v-bind="props"
-                            icon
-                            variant="text"
-                        >
-                            <v-icon
-                                icon="mdi-translate"
-                                size="small"
-                                color="#0e6942"
-                            ></v-icon>
-                        </v-btn>
-                    </template>
-                    <v-list>
-                        <v-list-item
-                            v-for="(language, index) in languages"
-                            :key="index"
-                            @click="changeLanguage(language.code)"
-                        >
-                            <v-list-item-title>{{ language.name }}</v-list-item-title>
-                        </v-list-item>
-                    </v-list>
-                </v-menu>
-
-                <v-btn
-                    @click="performLogout"
-                    text
-                >
-                    <v-tooltip
-                        :text="t('logout')"
-                        location="bottom"
-                    >
-                        <template v-slot:activator="{ props }">
-                            <v-icon
-                                v-bind="props"
-                                icon="mdi-logout"
-                                size="x-large"
-                                color="#0e6942"
-                            />
-                        </template>
-                    </v-tooltip>
-                </v-btn>
-            </v-app-bar>
-
-            <v-navigation-drawer
-                v-model="drawer"
-                app
-            >
-                <v-list>
-                    <v-list-item
-                        to="/user/assignment"
-                        link
-                    >
-                        <v-list-item-content>
-                            <v-list-item-title class="menu_item">{{ t("assignments") }}</v-list-item-title>
-                        </v-list-item-content>
-                    </v-list-item>
-
-                    <v-list-item
-                        to="/user/class"
-                        link
-                    >
-                        <v-list-item-content>
-                            <v-list-item-title class="menu_item">{{ t("classes") }}</v-list-item-title>
-                        </v-list-item-content>
-                    </v-list-item>
-
-                    <v-list-item
-                        to="/user/discussion"
-                        link
-                    >
-                        <v-list-item-content>
-                            <v-list-item-title class="menu_item">{{ t("discussions") }}</v-list-item-title>
-                        </v-list-item-content>
-                    </v-list-item>
-                </v-list>
-            </v-navigation-drawer>
-        </v-app>
-
-        <nav class="menu">
-            <div class="left">
-                <ul>
-                    <li>
-                        <router-link
-                            to="/user"
-                            class="dwengo_home"
-                        >
-                            <img
-                                class="dwengo_logo"
                     :src="dwengoLogo"
                 />
                 <p class="caption">
                     {{ t(`${role}`) }}
                 </p>
+            </div>
         </router-link>
-                    </li>
+        <v-toolbar-items class="menu">
-                    <li>
+            <v-btn
-                        <router-link
-                            :to="`/user/assignment`"
                 class="menu_item"
+                variant="text"
+                to="/user/assignment"
             >
                 {{ t("assignments") }}
-                        </router-link>
+            </v-btn>
-                    </li>
+            <v-btn
-                    <li>
+                class="menu_item"
-                        <router-link
+                variant="text"
                 to="/user/class"
-                            class="menu_item"
-                            >{{ t("classes") }}</router-link
             >
-                    </li>
+                {{ t("classes") }}
-                    <li>
+            </v-btn>
-                        <router-link
+            <v-btn
-                            to="/user/discussion"
                 class="menu_item"
-                            >{{ t("discussions") }}
+                variant="text"
-                        </router-link>
+                to="/user/discussion"
-                    </li>
+            >
-                    <li>
+                {{ t("discussions") }}
+            </v-btn>
             <v-menu open-on-hover>
                 <template v-slot:activator="{ props }">
                     <v-btn
@@ -220,35 +112,14 @@
                     </v-list-item>
                 </v-list>
             </v-menu>
-                    </li>
+        </v-toolbar-items>
-                </ul>
+        <v-spacer></v-spacer>
-            </div>
-            <div class="right">
-                <li>
-                    <!-- <v-btn
-                        @click="performLogout"
-                        to="/login"
-                        style="background-color: transparent; box-shadow: none !important"
-                    >
-                        <v-tooltip
-                            :text="t('logout')"
-                            location="bottom"
-                        >
-                            <template v-slot:activator="{ props }">
-                                <v-icon
-                                    v-bind="props"
-                                    icon="mdi-logout"
-                                    size="x-large"
-                                    color="#0e6942"
-                                ></v-icon>
-                            </template>
-                        </v-tooltip>
-                    </v-btn> -->
         <v-dialog max-width="500">
             <template v-slot:activator="{ props: activatorProps }">
                 <v-btn
                     v-bind="activatorProps"
-                                style="background-color: transparent; box-shadow: none !important"
+                    :rounded="true"
+                    variant="text"
                 >
                     <v-tooltip
                         :text="t('logout')"
@@ -285,31 +156,56 @@
                 </v-card>
             </template>
         </v-dialog>
-                </li>
-                <li>
         <v-avatar
             size="large"
             color="#0e6942"
-                        style="font-size: large; font-weight: bold"
+            class="user-button"
             >{{ initials }}</v-avatar
         >
-                </li>
+    </v-app-bar>
-            </div>
+    <v-navigation-drawer
-        </nav>
+        v-model="drawer"
-        <router-view />
+        temporary
-    </main>
+        app
+    >
+        <v-list>
+            <v-list-item
+                to="/user/assignment"
+                link
+            >
+                <v-list-item-title class="menu_item">{{ t("assignments") }}</v-list-item-title>
+            </v-list-item>
+
+            <v-list-item
+                to="/user/class"
+                link
+            >
+                <v-list-item-title class="menu_item">{{ t("classes") }}</v-list-item-title>
+            </v-list-item>
+
+            <v-list-item
+                to="/user/discussion"
+                link
+            >
+                <v-list-item-title class="menu_item">{{ t("discussions") }}</v-list-item-title>
+            </v-list-item>
+        </v-list>
+    </v-navigation-drawer>
 </template>
 
 <style scoped>
+    .app-bar {
+        background-color: #f6faf2;
+    }
     .menu {
         background-color: #f6faf2;
         display: flex;
         justify-content: space-between;
     }
-
+    .user-button {
-    .right {
+        margin-right: 10px;
-        align-items: center;
+        font-size: large;
-        padding: 10px;
+        font-weight: bold;
     }
 
     .right li {
@@ -347,16 +243,19 @@
         color: #0e6942;
         text-decoration: none;
         font-size: large;
-    }
+        text-transform: none;
-
-    nav a.router-link-active {
-        font-weight: bold;
     }
 
     @media (max-width: 700px) {
         .menu {
             display: none;
         }
+        .caption {
+            font-size: smaller;
+        }
+        .dwengo_logo {
+            width: 100px;
+        }
     }
 
     @media (min-width: 701px) {

frontend/src/components/ThemeCard.vue

@@ -1,14 +1,14 @@
 <script setup lang="ts">
-import { useI18n } from "vue-i18n";
+    import { useI18n } from "vue-i18n";
 
-const { t } = useI18n();
+    const { t } = useI18n();
 
-defineProps<{
+    defineProps<{
         path: string;
         title: string;
         description: string;
         image: string;
-}>();
+    }>();
 </script>
 
 <template>
@@ -31,7 +31,10 @@ defineProps<{
         </v-card-title>
         <v-card-text class="description flex-grow-1">{{ description }}</v-card-text>
         <v-card-actions>
-            <v-btn :to="`theme/${path}`" variant="text">
+            <v-btn
+                :to="`theme/${path}`"
+                variant="text"
+            >
                 {{ t("read-more") }}
             </v-btn>
         </v-card-actions>
@@ -39,36 +42,36 @@ defineProps<{
 </template>
 
 <style scoped>
-.theme-card {
+    .theme-card {
         display: flex;
         flex-direction: column;
         height: 100%;
         padding: 1rem;
         cursor: pointer;
-}
+    }
 
-.theme-card:hover {
+    .theme-card:hover {
         background-color: rgba(0, 0, 0, 0.03);
-}
+    }
 
-.title-container {
+    .title-container {
         display: flex;
         align-items: center;
         gap: 10px;
         text-align: left;
         justify-content: flex-start;
-}
+    }
 
-.title-image {
+    .title-image {
         flex-shrink: 0;
         border-radius: 5px;
         margin-left: 0;
-}
+    }
 
-.title {
+    .title {
         flex-grow: 1;
         white-space: normal;
         overflow-wrap: break-word;
         word-break: break-word;
-}
+    }
 </style>

frontend/src/controllers/base-controller.ts

@@ -1,4 +1,4 @@
-import {apiConfig} from "@/config.ts";
+import { apiConfig } from "@/config.ts";
 
 export class BaseController {
     protected baseUrl: string;

frontend/src/controllers/controllers.ts

@@ -1,4 +1,4 @@
-import {ThemeController} from "@/controllers/themes.ts";
+import { ThemeController } from "@/controllers/themes.ts";
 
 export function controllerGetter<T>(Factory: new () => T): () => T {
     let instance: T | undefined;

frontend/src/controllers/themes.ts

@@ -1,4 +1,4 @@
-import {BaseController} from "@/controllers/base-controller.ts";
+import { BaseController } from "@/controllers/base-controller.ts";
 
 export class ThemeController extends BaseController {
     constructor() {

frontend/src/main.ts

@@ -10,7 +10,7 @@ import i18n from "./i18n/i18n.ts";
 // Components
 import App from "./App.vue";
 import router from "./router";
-import { VueQueryPlugin, QueryClient } from '@tanstack/vue-query';
+import { VueQueryPlugin, QueryClient } from "@tanstack/vue-query";
 
 const app = createApp(App);
 

frontend/src/queries/themes.ts

@@ -1,25 +1,22 @@
-import { useQuery } from '@tanstack/vue-query';
+import { useQuery } from "@tanstack/vue-query";
-import { getThemeController } from '@/controllers/controllers';
+import { getThemeController } from "@/controllers/controllers";
-import {type MaybeRefOrGetter, toValue} from "vue";
+import { type MaybeRefOrGetter, toValue } from "vue";
 
 const themeController = getThemeController();
 
-export const useThemeQuery = (language: MaybeRefOrGetter<string>) => {
+export const useThemeQuery = (language: MaybeRefOrGetter<string>) =>
-    return useQuery({
+    useQuery({
-        queryKey: ['themes', language],
+        queryKey: ["themes", language],
         queryFn: () => {
             const lang = toValue(language);
             return themeController.getAll(lang);
         },
-        enabled: () => !!toValue(language),
+        enabled: () => Boolean(toValue(language)),
     });
-};
 
-export const useThemeHruidsQuery = (themeKey: string | null) => {
+export const useThemeHruidsQuery = (themeKey: string | null) =>
-    return useQuery({
+    useQuery({
-        queryKey: ['theme-hruids', themeKey],
+        queryKey: ["theme-hruids", themeKey],
         queryFn: () => themeController.getHruidsByKey(themeKey!),
-        enabled: !!themeKey,
+        enabled: Boolean(themeKey),
     });
-};
-

frontend/src/services/auth/auth-config-loader.ts

@@ -1,11 +1,14 @@
 import apiClient from "@/services/api-client.ts";
 import type { FrontendAuthConfig } from "@/services/auth/auth.d.ts";
 
+export const AUTH_CONFIG_ENDPOINT = "auth/config";
+
 /**
  * Fetch the authentication configuration from the backend.
  */
 export async function loadAuthConfig() {
-    const authConfig = (await apiClient.get<FrontendAuthConfig>("auth/config")).data;
+    const authConfigResponse = await apiClient.get<FrontendAuthConfig>(AUTH_CONFIG_ENDPOINT);
+    const authConfig = authConfigResponse.data;
     return {
         student: {
             authority: authConfig.student.authority,

frontend/src/services/auth/auth-service.ts

@@ -5,7 +5,7 @@
 import { computed, reactive } from "vue";
 import type { AuthState, Role, UserManagersForRoles } from "@/services/auth/auth.d.ts";
 import { User, UserManager } from "oidc-client-ts";
-import { loadAuthConfig } from "@/services/auth/auth-config-loader.ts";
+import { AUTH_CONFIG_ENDPOINT, loadAuthConfig } from "@/services/auth/auth-config-loader.ts";
 import authStorage from "./auth-storage.ts";
 import { loginRoute } from "@/config.ts";
 import apiClient from "@/services/api-client.ts";
@@ -108,7 +108,7 @@ async function logout(): Promise<void> {
 apiClient.interceptors.request.use(
     async (reqConfig) => {
         const token = authState?.user?.access_token;
-        if (token) {
+        if (token && reqConfig.url !== AUTH_CONFIG_ENDPOINT) {
             reqConfig.headers.Authorization = `Bearer ${token}`;
         }
         return reqConfig;

frontend/src/utils/constants.ts

@@ -1,33 +1,64 @@
 export const THEMES_KEYS = [
-    "kiks", "art", "socialrobot", "agriculture", "wegostem",
+    "kiks",
-    "computational_thinking", "math_with_python", "python_programming",
+    "art",
-    "stem", "care", "chatbot", "physical_computing", "algorithms", "basics_ai"
+    "socialrobot",
+    "agriculture",
+    "wegostem",
+    "computational_thinking",
+    "math_with_python",
+    "python_programming",
+    "stem",
+    "care",
+    "chatbot",
+    "physical_computing",
+    "algorithms",
+    "basics_ai",
 ];
 
 export const THEMESITEMS: Record<string, string[]> = {
-    "all": THEMES_KEYS,
+    all: THEMES_KEYS,
-    "culture": ["art", "wegostem", "chatbot"],
+    culture: ["art", "wegostem", "chatbot"],
     "electricity-and-mechanics": ["socialrobot", "wegostem", "stem", "physical_computing"],
     "nature-and-climate": ["kiks", "agriculture"],
-    "agriculture": ["agriculture"],
+    agriculture: ["agriculture"],
-    "society": ["kiks", "socialrobot", "care", "chatbot"],
+    society: ["kiks", "socialrobot", "care", "chatbot"],
-    "math": ["kiks", "math_with_python", "python_programming", "stem", "care", "basics_ai"],
+    math: ["kiks", "math_with_python", "python_programming", "stem", "care", "basics_ai"],
-    "technology": ["socialrobot", "wegostem", "computational_thinking", "stem", "physical_computing", "basics_ai"],
+    technology: ["socialrobot", "wegostem", "computational_thinking", "stem", "physical_computing", "basics_ai"],
-    "algorithms": ["math_with_python", "python_programming", "stem", "algorithms", "basics_ai"],
+    algorithms: ["math_with_python", "python_programming", "stem", "algorithms", "basics_ai"],
 };
 
+export const AGEITEMS = ["all", "primary-school", "lower-secondary", "upper-secondary", "high-school", "older"];
+
 export const AGE_TO_THEMES: Record<string, string[]> = {
-    "all": THEMES_KEYS,
+    all: THEMES_KEYS,
     "primary-school": ["wegostem", "computational_thinking", "physical_computing"],
     "lower-secondary": ["socialrobot", "art", "wegostem", "computational_thinking", "physical_computing"],
-    "upper-secondary": ["kiks", "art", "socialrobot", "agriculture",
+    "upper-secondary": [
-        "computational_thinking", "math_with_python", "python_programming",
+        "kiks",
-        "stem", "care", "chatbot", "algorithms", "basics_ai"],
+        "art",
-    "high-school": [
+        "socialrobot",
-        "kiks", "art", "agriculture", "computational_thinking", "math_with_python", "python_programming",
+        "agriculture",
-        "stem", "care", "chatbot", "algorithms", "basics_ai"
+        "computational_thinking",
+        "math_with_python",
+        "python_programming",
+        "stem",
+        "care",
+        "chatbot",
+        "algorithms",
+        "basics_ai",
     ],
-    "older": [
+    "high-school": [
-        "kiks", "computational_thinking", "algorithms", "basics_ai"
+        "kiks",
-    ]
+        "art",
+        "agriculture",
+        "computational_thinking",
+        "math_with_python",
+        "python_programming",
+        "stem",
+        "care",
+        "chatbot",
+        "algorithms",
+        "basics_ai",
+    ],
+    older: ["kiks", "computational_thinking", "algorithms", "basics_ai"],
 };

frontend/src/views/CallbackPage.vue

@@ -8,7 +8,7 @@
     onMounted(async () => {
         try {
             await auth.handleLoginCallback();
-            await router.replace("/"); // Redirect to home (or dashboard)
+            await router.replace("/user"); // Redirect to theme page
         } catch (error) {
             console.error("OIDC callback error:", error);
         }

frontend/src/views/HomePage.vue

@@ -25,9 +25,10 @@
             <div class="container_left">
                 <img
                     :src="dwengoLogo"
+                    alt="Dwengo logo"
                     style="align-self: center"
                 />
-                <h> {{ t("homeTitle") }}</h>
+                <h1>{{ t("homeTitle") }}</h1>
                 <p class="info">
                     {{ t("homeIntroduction1") }}
                 </p>
@@ -55,7 +56,7 @@
                         width="125"
                         src="/assets/home/innovative.png"
                     ></v-img>
-                    <h class="big">{{ t("innovative") }}</h>
+                    <h2 class="big">{{ t("innovative") }}</h2>
                 </div>
                 <div class="img_small">
                     <v-img
@@ -63,7 +64,7 @@
                         width="125"
                         src="/assets/home/research_based.png"
                     ></v-img>
-                    <h class="big">{{ t("researchBased") }}</h>
+                    <h2 class="big">{{ t("researchBased") }}</h2>
                 </div>
                 <div class="img_small">
                     <v-img
@@ -71,7 +72,7 @@
                         width="125"
                         src="/assets/home/inclusive.png"
                     ></v-img>
-                    <h class="big">{{ t("sociallyRelevant") }}</h>
+                    <h2 class="big">{{ t("sociallyRelevant") }}</h2>
                 </div>
                 <div class="img_small">
                     <v-img
@@ -79,7 +80,7 @@
                         width="125"
                         src="/assets/home/socially_relevant.png"
                     ></v-img>
-                    <h class="big">{{ t("inclusive") }}</h>
+                    <h2 class="big">{{ t("inclusive") }}</h2>
                 </div>
             </div>
             <div class="container_right">
@@ -158,7 +159,7 @@
         margin-bottom: 10px;
     }
 
-    h {
+    h2 {
         font-size: large;
         font-weight: bold;
         align-self: center;

frontend/src/views/SingleTheme.vue

@@ -1,11 +1,7 @@
-<script setup lang="ts">
+<script setup lang="ts"></script>
-
-</script>
 
 <template>
-<main></main>
+    <main></main>
 </template>
 
-<style scoped>
+<style scoped></style>
-
-</style>

frontend/src/views/homepage/UserHomePage.vue

@@ -1,13 +1,13 @@
 <script setup lang="ts">
-import {ref, watch} from "vue";
+    import { ref, watch } from "vue";
-    import {useI18n} from "vue-i18n";
+    import { useI18n } from "vue-i18n";
-    import {THEMESITEMS, AGE_TO_THEMES} from "@/utils/constants.ts";
+    import { THEMESITEMS, AGE_TO_THEMES } from "@/utils/constants.ts";
     import BrowseThemes from "@/components/BrowseThemes.vue";
 
-    const {t, locale} = useI18n();
+    const { t, locale } = useI18n();
 
-    const selectedThemeKey = ref<string>('all');
+    const selectedThemeKey = ref<string>("all");
-    const selectedAgeKey = ref<string>('all');
+    const selectedAgeKey = ref<string>("all");
 
     const allThemes = ref(Object.keys(THEMESITEMS));
     const availableThemes = ref([...allThemes.value]);
@@ -17,18 +17,17 @@ import {ref, watch} from "vue";
 
     // Reset selection when language changes
     watch(locale, () => {
-        selectedThemeKey.value = 'all';
+        selectedThemeKey.value = "all";
-        selectedAgeKey.value = 'all';
+        selectedAgeKey.value = "all";
     });
 
-
     watch(selectedThemeKey, () => {
         if (selectedThemeKey.value === "all") {
             availableAges.value = [...allAges.value]; // Reset to all ages
         } else {
             const themes = THEMESITEMS[selectedThemeKey.value];
-            availableAges.value = allAges.value.filter(age =>
+            availableAges.value = allAges.value.filter((age) =>
-                AGE_TO_THEMES[age]?.some(theme => themes.includes(theme))
+                AGE_TO_THEMES[age]?.some((theme) => themes.includes(theme)),
             );
         }
     });
@@ -38,32 +37,31 @@ import {ref, watch} from "vue";
             availableThemes.value = [...allThemes.value]; // Reset to all themes
         } else {
             const themes = AGE_TO_THEMES[selectedAgeKey.value];
-            availableThemes.value = allThemes.value.filter(theme =>
+            availableThemes.value = allThemes.value.filter((theme) =>
-                THEMESITEMS[theme]?.some(theme => themes.includes(theme))
+                THEMESITEMS[theme]?.some((theme) => themes.includes(theme)),
             );
         }
     });
-
 </script>
 
 <template>
     <div class="main-container">
         <h1 class="title">{{ t("themes") }}</h1>
         <v-container class="dropdowns">
-            <v-select class="v-select"
+            <v-select
+                class="v-select"
                 :label="t('choose-theme')"
-                      :items="availableThemes.map(theme => ({ title: t(`theme-options.${theme}`), value: theme }))"
+                :items="availableThemes.map((theme) => ({ title: t(`theme-options.${theme}`), value: theme }))"
                 v-model="selectedThemeKey"
                 item-title="title"
                 item-value="value"
                 variant="outlined"
             />
 
-
             <v-select
                 class="v-select"
                 :label="t('choose-age')"
-                :items="availableAges.map(age => ({ key: age, label: t(`age-options.${age}`), value: age }))"
+                :items="availableAges.map((age) => ({ key: age, label: t(`age-options.${age}`), value: age }))"
                 v-model="selectedAgeKey"
                 item-title="label"
                 item-value="key"
@@ -71,55 +69,55 @@ import {ref, watch} from "vue";
             ></v-select>
         </v-container>
 
-        <BrowseThemes :selectedTheme="selectedThemeKey ?? ''" :selectedAge="selectedAgeKey ?? ''"/>
+        <BrowseThemes
+            :selectedTheme="selectedThemeKey ?? ''"
+            :selectedAge="selectedAgeKey ?? ''"
+        />
     </div>
 </template>
 
 <style scoped>
-.main-container {
+    .main-container {
         min-height: 100vh;
         min-width: 100vw;
         display: flex;
         flex-direction: column;
         align-items: flex-start;
         justify-content: flex-start;
-}
+    }
 
-.title {
+    .title {
         max-width: 50rem;
         margin-left: 1rem;
         margin-top: 1rem;
         text-align: center;
         display: flex;
         justify-content: center;
-}
+    }
 
-
+    .dropdowns {
-.dropdowns {
         display: flex;
         justify-content: space-between;
         gap: 5rem;
         width: 80%;
-}
+    }
 
-.v-select {
+    .v-select {
         flex: 1;
         min-width: 100px;
-}
+    }
 
-
+    @media (max-width: 768px) {
-@media (max-width: 768px) {
         .main-container {
             padding: 1rem;
         }
-}
+    }
 
-@media (max-width: 700px) {
+    @media (max-width: 700px) {
         .dropdowns {
             flex-direction: column;
             gap: 1rem;
             width: 80%;
         }
-}
+    }
-
 </style>

package-lock.json

@@ -118,7 +118,7 @@
                 "jsdom": "^26.0.0",
                 "npm-run-all2": "^7.0.2",
                 "typescript": "~5.7.3",
-                "vite": "^6.1.0",
+                "vite": "^6.1.2",
                 "vite-plugin-vue-devtools": "^7.7.2",
                 "vitest": "^3.0.5",
                 "vue-tsc": "^2.2.2"
@@ -9821,7 +9821,9 @@
             }
         },
         "node_modules/vite": {
-            "version": "6.1.1",
+            "version": "6.1.2",
+            "resolved": "https://registry.npmjs.org/vite/-/vite-6.1.2.tgz",
+            "integrity": "sha512-EiXfDyO/uNKhYOSlZ6+9qBz4H46A8Lr07pyjmb88KTbJ+xkXvnqtxvgtg2VxPU6Kfj8Ep0un9JLqdrCWLqIanw==",
             "dev": true,
             "license": "MIT",
             "dependencies": {