added logout endpoint

server/routers/auth/index.ts

@@ -1,2 +1,3 @@
 export * from "./login";
 export * from "./signup";
+export * from "./logout";

server/routers/auth/logout.ts

@@ -0,0 +1,35 @@
+import { Request, Response, NextFunction } from "express";
+import { lucia } from "@server/auth";
+import createHttpError from "http-errors";
+import HttpCode from "@server/types/HttpCode";
+import response from "@server/utils/response";
+
+export async function logout(
+    req: Request,
+    res: Response,
+    next: NextFunction,
+): Promise<any> {
+    const sessionId = req.cookies[lucia.sessionCookieName];
+
+    if (!sessionId) {
+        return next(
+            createHttpError(
+                HttpCode.BAD_REQUEST,
+                "You must be logged in to sign out",
+            ),
+        );
+    }
+
+    await lucia.invalidateSession(sessionId);
+    res.setHeader("Set-Cookie", lucia.createBlankSessionCookie().serialize());
+
+    return res.status(HttpCode.OK).send(
+        response<null>({
+            data: null,
+            success: true,
+            error: false,
+            message: "Logged out successfully",
+            status: HttpCode.OK,
+        }),
+    );
+}

server/routers/external.ts

@@ -46,3 +46,4 @@ unauthenticated.use("/auth", authRouter);
 
 authRouter.put("/signup", auth.signup);
 authRouter.post("/login", auth.login);
+authRouter.post("/logout", auth.logout);