diff --git a/api/prisma/schema.prisma b/api/prisma/schema.prisma
index 0edce571356..62157b0f7fe 100644
--- a/api/prisma/schema.prisma
+++ b/api/prisma/schema.prisma
@@ -20,7 +20,7 @@ type File {
 
 type CompletedChallenge {
   challengeType      Int? // Null | Undefined
-  completedDate      Float
+  completedDate      Float // TODO(Post-MVP): Change to DateTime
   files              File[]
   githubLink         String? // Undefined
   id                 String
@@ -28,6 +28,11 @@ type CompletedChallenge {
   solution           String? // Null | Undefined
 }
 
+type PartiallyCompletedChallenge {
+  id            String
+  completedDate Float
+}
+
 type Portfolio {
   description String
   id          String
@@ -68,13 +73,13 @@ type SavedChallenge {
 }
 
 model user {
-  id                           String               @id @default(auto()) @map("_id") @db.ObjectId
+  id                           String                        @id @default(auto()) @map("_id") @db.ObjectId
   about                        String
   acceptedPrivacyTerms         Boolean
-  badges                       Json? // Undefined | { coreTeam [][] }
+  // badges    Json? // Undefined | { coreTeam [][] } removed, as new API never uses it.
   completedChallenges          CompletedChallenge[]
   currentChallengeId           String?
-  donationEmails               String[]             @default([]) // Undefined | String[] (only possible for built in Types like String)
+  donationEmails               String[] // Undefined | String[] (only possible for built in Types like String)
   email                        String
   emailAuthLinkTTL             DateTime? // Null | Undefined
   emailVerified                Boolean
@@ -110,25 +115,25 @@ model user {
   name                         String? // Null
   needsModeration              Boolean? // Undefined
   newEmail                     String? // Null | Undefined
-  partiallyCompletedChallenges Json? // Undefined | PartiallyCompletedChallenge[] TODO: The db only has this as an empty array
+  partiallyCompletedChallenges PartiallyCompletedChallenge[] // Undefined | PartiallyCompletedChallenge[]
   password                     String? // Undefined
   picture                      String
   portfolio                    Portfolio[]
   profileUI                    ProfileUI? // Undefined
   progressTimestamps           Json? // ProgressTimestamp[] | Null[] | Int64[] | Double[]
-  rand                         Float? // Undefined
-  savedChallenges              Json? // Undefined | SavedChallenge[]
+  // rand Float? // Undefined removed, as new API never uses it.
+  savedChallenges              SavedChallenge[] // Undefined | SavedChallenge[]
   sendQuincyEmail              Boolean
   sound                        Boolean? // Undefined
   theme                        String? // Undefined
   timezone                     String? // Undefined
   twitter                      String? // Null | Undefined
   unsubscribeId                String
-  username                     String  // TODO(Post-MVP): make this unique
+  username                     String // TODO(Post-MVP): make this unique
   usernameDisplay              String? // Undefined
   verificationToken            String? // Undefined
   website                      String? // Undefined
-  yearsTopContributor          String[]             @default([]) // Undefined | String[]
+  yearsTopContributor          String[] // Undefined | String[]
 }
 
 // -----------------------------------
diff --git a/api/src/routes/auth.test.ts b/api/src/routes/auth.test.ts
new file mode 100644
index 00000000000..d8e5d59a57e
--- /dev/null
+++ b/api/src/routes/auth.test.ts
@@ -0,0 +1,15 @@
+import { setupServer, superRequest } from '../../jest.utils';
+
+describe('dev login', () => {
+  setupServer();
+  it('should create an account if one does not exist', async () => {
+    await fastifyTestInstance.prisma.user.deleteMany({
+      where: { email: 'foo@bar.com' }
+    });
+
+    const res = await superRequest('/auth/dev-callback', { method: 'GET' });
+
+    expect(res.body).toStrictEqual({ statusCode: 200 });
+    expect(res.status).toBe(200);
+  });
+});
diff --git a/api/src/routes/auth.ts b/api/src/routes/auth.ts
index 2036cbffebf..531d29be820 100644
--- a/api/src/routes/auth.ts
+++ b/api/src/routes/auth.ts
@@ -19,7 +19,6 @@ declare module 'fastify' {
 const defaultUser = {
   about: '',
   acceptedPrivacyTerms: false,
-  badges: {},
   completedChallenges: [],
   currentChallengeId: '',
   emailVerified: false,
@@ -63,8 +62,6 @@ const defaultUser = {
     showTimeLine: false
   },
   progressTimestamps: [],
-  // TODO: check what this is used for in api-server and if we need it
-  rand: 0,
   sendQuincyEmail: false,
   theme: 'default',
   // TODO: generate a UUID like in api-server
@@ -114,6 +111,7 @@ export const devLoginCallback: FastifyPluginCallback = (
     const { id } = await findOrCreateUser(fastify, email);
     req.session.user = { id };
     await req.session.save();
+    return { statusCode: 200 };
   });
 
   done();
diff --git a/api/src/routes/settings.test.ts b/api/src/routes/settings.test.ts
index e1d14f0bd8d..4a5601bd057 100644
--- a/api/src/routes/settings.test.ts
+++ b/api/src/routes/settings.test.ts
@@ -90,6 +90,7 @@ describe('settingRoutes', () => {
       const res = await request(fastifyTestInstance.server).get(
         '/auth/dev-callback'
       );
+      expect(res.status).toBe(200);
       setCookies = res.get('Set-Cookie');
     });
 
diff --git a/api/src/routes/user.test.ts b/api/src/routes/user.test.ts
index 27acf07889b..7d72b50fc6a 100644
--- a/api/src/routes/user.test.ts
+++ b/api/src/routes/user.test.ts
@@ -43,6 +43,7 @@ describe('userRoutes', () => {
 
     beforeEach(async () => {
       const res = await superRequest('/auth/dev-callback', { method: 'GET' });
+      expect(res.status).toBe(200);
       setCookies = res.get('Set-Cookie');
     });
 
@@ -57,8 +58,8 @@ describe('userRoutes', () => {
           where: { email: 'foo@bar.com' }
         });
 
-        expect(response.status).toBe(200);
         expect(response.body).toStrictEqual({});
+        expect(response.status).toBe(200);
         expect(userCount).toBe(0);
       });
     });
@@ -79,8 +80,8 @@ describe('userRoutes', () => {
           where: { email: 'foo@bar.com' }
         });
 
-        expect(response.status).toBe(200);
         expect(response.body).toStrictEqual({});
+        expect(response.status).toBe(200);
 
         expect(user?.progressTimestamps).toHaveLength(1);
         expect(user).toMatchObject(baseProgressData);