chore(backend): Setup MikroORM

Simpele configuratie, geen integratie
Succesvol commando's uitvoeren werkt

backend/package.json

@@ -20,13 +20,19 @@
   },
   "homepage": "https://sel2-1.ugent.be/",
   "dependencies": {
+    "@mikro-orm/core": "^6.4.6",
+    "@mikro-orm/reflection": "^6.4.6",
+    "@mikro-orm/postgresql": "^6.4.6",
     "dotenv": "^16.4.7",
     "express": "^5.0.1"
   },
   "devDependencies": {
+    "@mikro-orm/cli": "^6.4.6",
     "@types/express": "^5.0.0",
     "@types/node": "^22.13.4",
+    "ts-node": "^10.9.2",
     "tsx": "^4.19.3",
-    "typescript": "^5.7.3"
+    "typescript": "^5.7.3",
+    "vitest": "^3.0.6"
   }
 }

backend/src/app.ts

@@ -1,15 +1,21 @@
 import express, {Express, Request, Response} from 'express';
+import initORM from './orm'
 
 const app: Express = express();
-
 const port: string | number = process.env.PORT || 3000;
 
+// TODO Replace with Express routes
 app.get('/', (_, res: Response) => {
   res.json({
       message: 'Hello Dwengo!'
   });
 });
 
-app.listen(port, () => {
+async function startServer() {
+  const orm = await initORM();
+  app.listen(port, () => {
     console.log(`Server is running at http://localhost:${port}`);
-})
+  });
+}
+
+startServer();

backend/src/entities/user.entity.ts

@@ -0,0 +1,13 @@
+import { Entity, OneToOne, PrimaryKey, Property } from '@mikro-orm/core'
+
+@Entity()
+export class User {
+  @PrimaryKey({ type: 'number' })
+  id!: number;
+
+  @Property()
+  firstName: string = '';
+
+  @Property()
+  lastName: string = '';
+}

backend/src/mikro-orm.config.ts

@@ -0,0 +1,12 @@
+import { Options } from '@mikro-orm/core'
+import { PostgreSqlDriver } from '@mikro-orm/postgresql'
+
+const config: Options = {
+  driver: PostgreSqlDriver,
+  dbName: 'dwengo',
+  entities: ['dist/**/*.entity.js'],
+  entitiesTs: ['src/**/*.entity.ts'],
+  debug: true
+};
+
+export default config;

backend/src/orm.ts

@@ -0,0 +1,6 @@
+import { MikroORM } from '@mikro-orm/core'
+import config from './mikro-orm.config';
+
+export default async function initORM() {
+  await MikroORM.init(config);
+}

backend/tsconfig.json

@@ -14,8 +14,8 @@
     "target": "ESNext",                                  /* Set the JavaScript language version for emitted JavaScript and include compatible library declarations. */
     // "lib": [],                                        /* Specify a set of bundled library declaration files that describe the target runtime environment. */
     // "jsx": "preserve",                                /* Specify what JSX code is generated. */
-    // "experimentalDecorators": true,                   /* Enable experimental support for legacy experimental decorators. */
+    "experimentalDecorators": true,                      /* Enable experimental support for legacy experimental decorators. */
-    // "emitDecoratorMetadata": true,                    /* Emit design-type metadata for decorated declarations in source files. */
+    "emitDecoratorMetadata": true,                       /* Emit design-type metadata for decorated declarations in source files. */
     // "jsxFactory": "",                                 /* Specify the JSX factory function used when targeting React JSX emit, e.g. 'React.createElement' or 'h'. */
     // "jsxFragmentFactory": "",                         /* Specify the JSX Fragment reference used for fragments when targeting React JSX emit e.g. 'React.Fragment' or 'Fragment'. */
     // "jsxImportSource": "",                            /* Specify module specifier used to import the JSX factory functions when using 'jsx: react-jsx*'. */