fix: serialize user sessions properly (#62)

* fix: cast prisma user object to user object

* chore: improved consistency

* chore: cast function renamed

---------

Co-authored-by: Mir Arif Hasan <arif.ishan05@gmail.com>

packages/hoppscotch-backend/src/user/user.resolver.ts

@@ -26,8 +26,8 @@ export class UserResolver {
       "Gives details of the user executing this query (pass Authorization 'Bearer' header)",
   })
   @UseGuards(GqlAuthGuard)
-  me(@GqlUser() user) {
-    return user;
+  me(@GqlUser() user: AuthUser) {
+    return this.userService.convertDbUserToUser(user);
   }
 
   /* Mutations */

packages/hoppscotch-backend/src/user/user.service.ts

@@ -14,6 +14,7 @@ import { USER_UPDATE_FAILED } from 'src/errors';
 import { PubSubService } from 'src/pubsub/pubsub.service';
 import { stringToJson, taskEitherValidateArraySeq } from 'src/utils';
 import { UserDataHandler } from './user.data.handler';
+import { User as DbUser } from '@prisma/client';
 
 @Injectable()
 export class UserService {
@@ -28,6 +29,27 @@ export class UserService {
     this.userDataHandlers.push(handler);
   }
 
+  /**
+   * Converts a prisma user object to a user object
+   *
+   * @param dbUser Prisma User object
+   * @returns  User object
+   */
+  convertDbUserToUser(dbUser: DbUser): User {
+    const dbCurrentRESTSession = dbUser.currentRESTSession;
+    const dbCurrentGQLSession = dbUser.currentGQLSession;
+
+    return {
+      ...dbUser,
+      currentRESTSession: dbCurrentRESTSession
+        ? JSON.stringify(dbCurrentRESTSession)
+        : null,
+      currentGQLSession: dbCurrentGQLSession
+        ? JSON.stringify(dbCurrentGQLSession)
+        : null,
+    };
+  }
+
   /**
    * Find User with given email id
    *
@@ -236,15 +258,7 @@ export class UserService {
         data: sessionObj,
       });
 
-      const updatedUser: User = {
-        ...dbUpdatedUser,
-        currentGQLSession: dbUpdatedUser.currentGQLSession
-          ? JSON.stringify(dbUpdatedUser.currentGQLSession)
-          : null,
-        currentRESTSession: dbUpdatedUser.currentRESTSession
-          ? JSON.stringify(dbUpdatedUser.currentRESTSession)
-          : null,
-      };
+      const updatedUser = this.convertDbUserToUser(dbUpdatedUser);
 
       // Publish subscription for user updates
       await this.pubsub.publish(`user/${updatedUser.uid}/updated`, updatedUser);