🏗️ separate http and internal service

separate between internal and http service due security concern in auth module

src/modules/auth/services/http/googleCallback.service.ts

@@ -0,0 +1,36 @@
+import { AppError } from "../../../../helpers/error/instances/app";
+import { googleProvider } from "../../providers/google.provider";
+import { redis } from "../../../../utils/databases/redis/connection";
+import { ErrorForwarder } from "../../../../helpers/error/instances/forwarder";
+
+export const googleCallbackService = async (query: {
+  state: string;
+  code: string;
+}) => {
+  try {
+    const state = query.state;
+    const codeVerifier = await redis.get(
+      `${process.env.APP_NAME}:pkce:${state}`
+    );
+    if (!codeVerifier) throw new AppError(408, "Request timeout");
+    await redis.del(`${process.env.APP_NAME}:pkce:${state}`);
+
+    const google = googleProvider();
+    const tokens = await google.validateAuthorizationCode(
+      query.code,
+      codeVerifier
+    );
+    const accessToken = tokens.accessToken();
+    const response = await fetch(
+      "https://openidconnect.googleapis.com/v1/userinfo",
+      {
+        headers: {
+          Authorization: `Bearer ${accessToken}`,
+        },
+      }
+    );
+    return await response.json();
+  } catch (error) {
+    ErrorForwarder(error, 500, "Authentication service error");
+  }
+};