Add conversation API endpoint to get conversation (#698)

* Sorting conversation list in api response

* Add new conversation endpoint in the api

* only expose needed param in the API

* Update src/routes/api/conversations/+server.ts

Co-authored-by: Eliott C. <[email protected]>

* linter

* fix type

---------

Co-authored-by: Kevin CATHALY <[email protected]>
Co-authored-by: Eliott C. <[email protected]>

src/routes/api/conversation/[id]/+server.ts

@@ -0,0 +1,38 @@
+import { collections } from "$lib/server/database";
+import { authCondition } from "$lib/server/auth";
+import { z } from "zod";
+import { ObjectId } from "mongodb";
+
+export async function GET({ locals, params }) {
+	const id = z.string().parse(params.id);
+	const convId = new ObjectId(id);
+
+	if (locals.user?._id || locals.sessionId) {
+		const conv = await collections.conversations.findOne({
+			_id: convId,
+			...authCondition(locals),
+		});
+
+		if (conv) {
+			const res = {
+				id: conv._id,
+				title: conv.title,
+				updatedAt: conv.updatedAt,
+				modelId: conv.model,
+				messages: conv.messages.map((message) => ({
+					content: message.content,
+					from: message.from,
+					id: message.id,
+					createdAt: message.createdAt,
+					updatedAt: message.updatedAt,
+					webSearch: message.webSearch,
+				})),
+			};
+			return Response.json(res);
+		} else {
+			return Response.json({ message: "Conversation not found" }, { status: 404 });
+		}
+	} else {
+		return Response.json({ message: "Must have session cookie" }, { status: 401 });
+	}
+}

src/routes/api/conversations/+server.ts

@@ -1,14 +1,28 @@
 import { collections } from "$lib/server/database";
 import { authCondition } from "$lib/server/auth";
+import type { Conversation } from "$lib/types/Conversation";
 
 export async function GET({ locals }) {
 	if (locals.user?._id || locals.sessionId) {
-		const res = await collections.conversations
+		const convs = await collections.conversations
 			.find({
 				...authCondition(locals),
 			})
+			.project<Pick<Conversation, "_id" | "title" | "updatedAt" | "model">>({
+				title: 1,
+				updatedAt: 1,
+				model: 1,
+			})
+			.sort({ updatedAt: -1 })
 			.toArray();
 
+		const res = convs.map((conv) => ({
+			id: conv._id,
+			title: conv.title,
+			updatedAt: conv.updatedAt,
+			modelId: conv.model,
+		}));
+
 		return Response.json(res);
 	} else {
 		return Response.json({ message: "Must have session cookie" }, { status: 401 });