fix(api): send msUsername in get session user endpoint (#54050)

Co-authored-by: Shaun Hamilton <shauhami020@gmail.com>

api/src/routes/user.test.ts

@@ -499,7 +499,7 @@ describe('userRoutes', () => {
       });
     });
 
-    describe('user/get-user-session', () => {
+    describe('/user/get-user-session', () => {
       beforeEach(async () => {
         await fastifyTestInstance.prisma.user.updateMany({
           where: { email: testUserData.email },
@@ -590,6 +590,21 @@ describe('userRoutes', () => {
         expect(tokenData.id).toBe(userToken);
       });
 
+      test('GET returns the msUsername if it exists', async () => {
+        await fastifyTestInstance.prisma.msUsername.create({
+          data: msUsernameData[0] as (typeof msUsernameData)[0]
+        });
+
+        const msUsernames = await fastifyTestInstance.prisma.msUsername.count();
+        expect(msUsernames).toBe(1);
+
+        const response = await superGet('/user/get-session-user');
+
+        const { msUsername } = response.body.user.foobar;
+
+        expect(msUsername).toBe(msUsernameData[0]?.msUsername);
+      });
+
       test('GET returns a minimal user when all optional properties are missing', async () => {
         // To get a minimal test user we first delete the existing one...
         await fastifyTestInstance.prisma.user.deleteMany({

api/src/routes/user.ts

@@ -510,11 +510,17 @@ export const userGetRoutes: FastifyPluginCallbackTypebox = (
           where: { userId: req.user!.id }
         });
 
-        const [userToken, user, completedSurveys] = await Promise.all([
-          userTokenP,
-          userP,
-          completedSurveysP
-        ]);
+        const msUsernameP = fastify.prisma.msUsername.findFirst({
+          where: { userId: req.user?.id }
+        });
+
+        const [userToken, user, completedSurveys, msUsername] =
+          await Promise.all([
+            userTokenP,
+            userP,
+            completedSurveysP,
+            msUsernameP
+          ]);
 
         if (!user?.username) {
           void res.code(500);
@@ -556,7 +562,8 @@ export const userGetRoutes: FastifyPluginCallbackTypebox = (
               twitter: normalizeTwitter(twitter),
               username: usernameDisplay || username,
               userToken: encodedToken,
-              completedSurveys: normalizeSurveys(completedSurveys)
+              completedSurveys: normalizeSurveys(completedSurveys),
+              msUsername: msUsername?.msUsername
             }
           },
           result: user.username

api/src/schemas.ts

@@ -451,7 +451,8 @@ export const schemas = {
                   })
                 )
               })
-            )
+            ),
+            msUsername: Type.Optional(Type.String())
           })
         ),
         result: Type.String()