feat: litellm frontend integration

src/lib/apis/litellm/index.ts

@@ -0,0 +1,42 @@
+import { LITELLM_API_BASE_URL } from '$lib/constants';
+
+export const getLiteLLMModels = async (token: string = '') => {
+	let error = null;
+
+	const res = await fetch(`${LITELLM_API_BASE_URL}/v1/models`, {
+		method: 'GET',
+		headers: {
+			Accept: 'application/json',
+			'Content-Type': 'application/json',
+			...(token && { authorization: `Bearer ${token}` })
+		}
+	})
+		.then(async (res) => {
+			if (!res.ok) throw await res.json();
+			return res.json();
+		})
+		.catch((err) => {
+			console.log(err);
+			error = `OpenAI: ${err?.error?.message ?? 'Network Problem'}`;
+			return [];
+		});
+
+	if (error) {
+		throw error;
+	}
+
+	const models = Array.isArray(res) ? res : res?.data ?? null;
+
+	return models
+		? models
+				.map((model) => ({
+					id: model.id,
+					name: model.name ?? model.id,
+					external: true,
+					source: 'litellm'
+				}))
+				.sort((a, b) => {
+					return a.name.localeCompare(b.name);
+				})
+		: models;
+};