/api/auth/logout, /api/auth/refreshToken Endpoint 구현

src/lib/server/modules/auth.ts

@@ -0,0 +1,38 @@
+import jwt from "jsonwebtoken";
+import env from "$lib/server/loadenv";
+
+interface TokenData {
+  type: "access" | "refresh";
+  userId: number;
+  clientId?: number;
+}
+
+export enum TokenError {
+  EXPIRED,
+  INVALID,
+}
+
+export const issueToken = (type: "access" | "refresh", userId: number, clientId?: number) => {
+  return jwt.sign(
+    {
+      type,
+      userId,
+      clientId,
+    } satisfies TokenData,
+    env.jwt.secret,
+    {
+      expiresIn: type === "access" ? env.jwt.accessExp : env.jwt.refreshExp,
+    },
+  );
+};
+
+export const verifyToken = (token: string) => {
+  try {
+    return jwt.verify(token, env.jwt.secret) as TokenData;
+  } catch (error) {
+    if (error instanceof jwt.TokenExpiredError) {
+      return TokenError.EXPIRED;
+    }
+    return TokenError.INVALID;
+  }
+};