diff --git a/backend/api.yaml b/backend/api.yaml
index 6e6433c5..0e60bbd3 100644
--- a/backend/api.yaml
+++ b/backend/api.yaml
@@ -9,158 +9,84 @@ servers:
     description: Local server
 
 paths:
-  /auth/logout:
-    post:
-      operationId: logout
-      description: Invalidates current token.
+  /:
+    get:
+      operationId: getRoot
+      description: Root of API
       tags:
-        - Auth
+        - Miscellaneous
       responses:
-        '200':
+        "200":
           description: OK
           content:
-            application/json:
+            text/plain:
               schema:
-                properties:
-                  messages:
-                    type: string
-                    example: Successfully logged out.
-  /user:
+                type: string
+                example: Join DevSoc! https://devsoc.app/
+
+  /auth/callback/google:
     get:
-      operationId: getLoggedInUser
-      description: Returns info about currently logged in user.
+      operationId: googleCallback
+      description: Google OAuth callback
       tags:
-        - User
+        - Auth
+      parameters:
+        - name: code
+          in: query
+          description: Google OAuth code
+          required: true
+          schema:
+            type: string
       responses:
-        '200':
-          description: OK
-          content:
-            application/json:
-              schema:
-                properties:
-                  id:
-                    type: integer
-                    format: int64
-                    example: 1541815603606036480
-                  email:
-                    type: string
-                    example: me@example.com
-                  zid:
-                    type: string
-                    example: z5555555
-                  name:
-                    type: string
-                    example: Clancy Lion
-                  degree_name:
-                    type: string
-                    example: Computer Science
-                  degree_starting_year:
-                    type: integer
-                    example: 2024
-                  role:
-                    type: string
-                    example: User
-        '401':
-          description: Not logged in.
+        "200":
+          description: Ok
           content:
-            application/json:
-              schema:
-                properties:
-                  error:
-                    type: string
-                    example: Not logged in.
-    delete:
-      operationId: deleteUserById
-      description: Deletes currently logged in user.
+  /auth/logout:
+    post:
+      operationId: logout
+      description: Invalidates current token
       tags:
-        - User
+        - Auth
       responses:
-        '200':
-          description: OK
+        "200":
+          description: Ok
           content:
             application/json:
               schema:
                 properties:
                   message:
                     type: string
-                    example: Successfully deleted user.
-        '403':
-          description: User is only admin of an organisation.
-          content:
-            application/json:
-              schema:
-                properties:
-                  error:
-                    type: string
-                    example: "Cannot delete sole admin of an organisation."
-        '401':
-          description: Not logged.
+                    example: Successfully logged out
+        "401":
+          description: Not logged in
           content:
             application/json:
               schema:
-                properties:
-                  error:
-                    type: string
-                    example: Not logged in.
-  /user/{id}:
+                $ref: "#/components/schemas/NotLoggedIn"
+
+  /user:
     get:
-      operationId: getUserById
-      parameters:
-        - name: id
-          in: path
-          description: User ID
-          required: true
-          schema:
-            type: integer
-            format: int64
-      description: Returns info about specified user.
+      operationId: getLoggedInUser
+      description: Returns info about currently logged in user
       tags:
         - User
       responses:
-        '200':
+        "200":
           description: OK
           content:
             application/json:
               schema:
-                properties:
-                  id:
-                    type: integer
-                    format: int64
-                    example: 1541815603606036480
-                  email:
-                    type: string
-                    example: me@example.com
-                  zid:
-                    type: string
-                    example: z5555555
-                  name:
-                    type: string
-                    example: Clancy Lion
-                  pronouns:
-                    type: string
-                    example: They/Them
-                  gender:
-                    type: string
-                    example: Male
-                  degree_name:
-                    type: string
-                    example: Computer Science
-                  degree_starting_year:
-                    type: integer
-                    example: 2024
-        '403':
-          description: Requested user has not applied to one of authorized user's campaign.
+                $ref: "#/components/schemas/User"
+        "401":
+          description: Not logged in
           content:
             application/json:
               schema:
-                properties:
-                  error:
-                    type: string
-                    example: "Insufficient permissions"
+                $ref: "#/components/schemas/NotLoggedIn"
   /user/name:
     patch:
       operationId: updateUserName
-      description: Updates currently logged in user's name.
+      description: Updates currently logged in user's name
       tags:
         - User
       requestBody:
@@ -173,7 +99,7 @@ paths:
                   type: string
                   example: "Clancy Tiger"
       responses:
-        '200':
+        "200":
           description: OK
           content:
             application/json:
@@ -181,21 +107,17 @@ paths:
                 properties:
                   message:
                     type: string
-                    example: Successfully updated name.
-        '401':
+                    example: Successfully updated name
+        "401":
           description: Not logged in.
           content:
             application/json:
               schema:
-                properties:
-                  error:
-                    type: string
-                    example: Not logged in.
-
+                $ref: "#/components/schemas/NotLoggedIn"
   /user/pronouns:
     patch:
       operationId: updateUserPronouns
-      description: Updates currently logged in user's pronouns.
+      description: Updates currently logged in user's pronouns
       tags:
         - User
       requestBody:
@@ -204,11 +126,11 @@ paths:
           application/json:
             schema:
               properties:
-                zid:
+                pronouns:
                   type: string
-                  example: "z5123456"
+                  example: They/Them
       responses:
-        '200':
+        "200":
           description: OK
           content:
             application/json:
@@ -216,20 +138,17 @@ paths:
                 properties:
                   message:
                     type: string
-                    example: Successfully updated pronouns.
-        '401':
+                    example: Successfully updated pronouns
+        "401":
           description: Not logged in.
           content:
             application/json:
               schema:
-                properties:
-                  error:
-                    type: string
-                    example: Not logged in.
+                $ref: "#/components/schemas/NotLoggedIn"
   /user/gender:
     patch:
       operationId: updateUserGender
-      description: Updates currently logged in user's gender.
+      description: Updates currently logged in user's gender
       tags:
         - User
       requestBody:
@@ -238,11 +157,11 @@ paths:
           application/json:
             schema:
               properties:
-                zid:
+                gender:
                   type: string
-                  example: "z5123456"
+                  example: Female
       responses:
-        '200':
+        "200":
           description: OK
           content:
             application/json:
@@ -250,22 +169,17 @@ paths:
                 properties:
                   message:
                     type: string
-                    example: Successfully updated gender.
-        '401':
+                    example: Successfully updated gender
+        "401":
           description: Not logged in.
           content:
             application/json:
               schema:
-                properties:
-                  error:
-                    type: string
-                    example: Not logged in.
-
-
+                $ref: "#/components/schemas/NotLoggedIn"
   /user/zid:
     patch:
       operationId: updateUserZid
-      description: Updates currently logged in user's zID.
+      description: Updates currently logged in user's zID
       tags:
         - User
       requestBody:
@@ -276,9 +190,9 @@ paths:
               properties:
                 zid:
                   type: string
-                  example: "z5123456"
+                  example: z5123456
       responses:
-        '200':
+        "200":
           description: OK
           content:
             application/json:
@@ -286,20 +200,17 @@ paths:
                 properties:
                   message:
                     type: string
-                    example: Successfully updated zID.
-        '401':
+                    example: Successfully updated zID
+        "401":
           description: Not logged in.
           content:
             application/json:
               schema:
-                properties:
-                  error:
-                    type: string
-                    example: Not logged in.
+                $ref: "#/components/schemas/NotLoggedIn"
   /user/degree:
     patch:
       operationId: updateUserDegree
-      description: Updates currently logged in user's degree.
+      description: Updates currently logged in user's degree
       tags:
         - User
       requestBody:
@@ -310,12 +221,12 @@ paths:
               properties:
                 degree_name:
                   type: string
-                  example: "Electrical Engineering"
+                  example: Electrical Engineering
                 degree_starting_year:
                   type: integer
                   example: 2024
       responses:
-        '200':
+        "200":
           description: OK
           content:
             application/json:
@@ -323,25 +234,21 @@ paths:
                 properties:
                   message:
                     type: string
-                    example: Successfully updated email.
-        '401':
+                    example: Successfully updated email
+        "401":
           description: Not logged in.
           content:
             application/json:
               schema:
-                properties:
-                  error:
-                    type: string
-                    example: Not logged in.
-
+                $ref: "#/components/schemas/NotLoggedIn"
   /user/applications:
     get:
       operationId: getUserApplications
-      description: Returns info about applications made by currently logged in user.
+      description: Returns info about applications made by currently logged in user
       tags:
         - User
       responses:
-        '200':
+        "200":
           description: OK
           content:
             application/json:
@@ -350,23 +257,18 @@ paths:
                   campaigns:
                     type: array
                     items:
-                      $ref: '#/components/schemas/ApplicationDetails'
-        '401':
+                      $ref: "#/components/schemas/ApplicationDetails"
+        "401":
           description: Not logged in.
           content:
             application/json:
               schema:
-                properties:
-                  error:
-                    type: string
-                    example: Not logged in.
-
-
+                $ref: "#/components/schemas/NotLoggedIn"
 
   /organisation:
     post:
       operationId: createOrganisation
-      description: Creates a new organisation.
+      description: Create a new organisation
       tags:
         - Organisation
       requestBody:
@@ -375,16 +277,20 @@ paths:
           application/json:
             schema:
               properties:
+                slug:
+                  type: string
+                  description: ASCII string for URL like https://chaos.csesoc.app/s/unsw-devsoc
+                  example: unsw-devsoc
                 name:
                   type: string
-                  example: "UNSW Software Development Society"
+                  example: UNSW Software Development Society
                 admin:
                   type: integer
                   format: int64
                   example: 1541815603606036480
                   description: User ID of admin
       responses:
-        '200':
+        "200":
           description: OK
           content:
             application/json:
@@ -392,16 +298,44 @@ paths:
                 properties:
                   message:
                     type: string
-                    example: Successfully created organisation.
-        '403':
-          description: User is not a super user.
+                    example: Successfully created organisation
+        "403":
+          description: User is not a SuperUser
+          content:
+            application/json:
+              schema:
+                $ref: "#/components/schemas/Unauthorized"
+  /organisation/slug_check:
+    post:
+      operationId: checkOrganisationSlugAvailability
+      description: Check if slug is available
+      tags:
+        - Organisation
+      requestBody:
+        required: true
+        content:
+          application/json:
+            schema:
+              properties:
+                slug:
+                  type: string
+                  example: unsw-devsoc
+      responses:
+        "200":
+          description: OK
           content:
             application/json:
               schema:
                 properties:
-                  error:
+                  message:
                     type: string
-                    example: Unauthorized
+                    example: Organisation slug is available
+        "400":
+          description: Bad request - slug is in use or not ASCII
+          content:
+            application/json:
+              schema:
+                $ref: "#/components/schemas/BadRequest"
   /organisation/{id}:
     get:
       operationId: getOrganisationById
@@ -417,7 +351,7 @@ paths:
       tags:
         - Organisation
       responses:
-        '200':
+        "200":
           description: OK
           content:
             application/json:
@@ -436,7 +370,7 @@ paths:
                   created_at:
                     type: string
                     example: 2024-02-10T18:25:43.511Z
-        '401':
+        "401":
           description: Not logged in.
           content:
             application/json:
@@ -459,7 +393,7 @@ paths:
       tags:
         - Organisation
       responses:
-        '200':
+        "200":
           description: OK
           content:
             application/json:
@@ -468,7 +402,7 @@ paths:
                   message:
                     type: string
                     example: Successfully deleted organisation.
-        '401':
+        "401":
           description: Not logged in.
           content:
             application/json:
@@ -477,7 +411,7 @@ paths:
                   error:
                     type: string
                     example: Not logged in.
-        '403':
+        "403":
           description: User is not a super user.
           content:
             application/json:
@@ -501,7 +435,7 @@ paths:
       tags:
         - Organisation
       responses:
-        '200':
+        "200":
           description: OK
           content:
             application/json:
@@ -510,8 +444,8 @@ paths:
                   campaigns:
                     type: array
                     items:
-                      $ref: '#/components/schemas/OrganisationCampaign'
-        '401':
+                      $ref: "#/components/schemas/OrganisationCampaign"
+        "401":
           description: Not logged in.
           content:
             application/json:
@@ -536,7 +470,7 @@ paths:
       tags:
         - Organisation
       responses:
-        '200':
+        "200":
           description: OK
           content:
             application/json:
@@ -546,7 +480,7 @@ paths:
                     type: string
                     description: Presigned S3 url to upload file.
                     example: https://www.youtube.com/watch?v=dQw4w9WgXcQ
-        '401':
+        "401":
           description: Not logged in.
           content:
             application/json:
@@ -555,7 +489,7 @@ paths:
                   error:
                     type: string
                     example: Not logged in.
-        '403':
+        "403":
           description: User is not an organisation admin.
           content:
             application/json:
@@ -580,7 +514,7 @@ paths:
       tags:
         - Organisation
       responses:
-        '200':
+        "200":
           description: OK
           content:
             application/json:
@@ -601,7 +535,7 @@ paths:
                         role:
                           type: string
                           example: Admin
-        '403':
+        "403":
           description: User is not an organisation admin or member.
           content:
             application/json:
@@ -632,12 +566,17 @@ paths:
                   items:
                     type: integer
                     format: int64
-                  example: [1541815603606036480, 1541815603606036827, 1541815287306036429]
+                  example:
+                    [
+                      1541815603606036480,
+                      1541815603606036827,
+                      1541815287306036429,
+                    ]
       description: Specifies members for specified organistion.
       tags:
         - Organisation
       responses:
-        '200':
+        "200":
           description: OK
           content:
             application/json:
@@ -646,7 +585,7 @@ paths:
                   message:
                     type: string
                     example: Successfully updated members.
-        '401':
+        "401":
           description: Not logged in.
           content:
             application/json:
@@ -655,7 +594,7 @@ paths:
                   error:
                     type: string
                     example: Not logged in.
-        '403':
+        "403":
           description: User is not an organisation admin.
           content:
             application/json:
@@ -687,7 +626,7 @@ paths:
       tags:
         - Organisation
       responses:
-        '200':
+        "200":
           description: OK
           content:
             application/json:
@@ -696,7 +635,7 @@ paths:
                   message:
                     type: string
                     example: Successfully updated members.
-        '401':
+        "401":
           description: Not logged in.
           content:
             application/json:
@@ -705,7 +644,7 @@ paths:
                   error:
                     type: string
                     example: Not logged in.
-        '403':
+        "403":
           description: User is not an organisation admin.
           content:
             application/json:
@@ -730,7 +669,7 @@ paths:
       tags:
         - Organisation
       responses:
-        '200':
+        "200":
           description: OK
           content:
             application/json:
@@ -751,7 +690,7 @@ paths:
                         role:
                           type: string
                           example: Admin
-        '403':
+        "403":
           description: User is not a SuperUser.
           content:
             application/json:
@@ -782,12 +721,17 @@ paths:
                   items:
                     type: integer
                     format: int64
-                  example: [1541815603606036480, 1541815603606036827, 1541815287306036429]
+                  example:
+                    [
+                      1541815603606036480,
+                      1541815603606036827,
+                      1541815287306036429,
+                    ]
       description: Specifies Admins for specified organistion.
       tags:
         - Organisation
       responses:
-        '200':
+        "200":
           description: OK
           content:
             application/json:
@@ -796,7 +740,7 @@ paths:
                   message:
                     type: string
                     example: Successfully updated members.
-        '401':
+        "401":
           description: Not logged in.
           content:
             application/json:
@@ -805,7 +749,7 @@ paths:
                   error:
                     type: string
                     example: Not logged in.
-        '403':
+        "403":
           description: User is not a SuperUser.
           content:
             application/json:
@@ -837,7 +781,7 @@ paths:
       tags:
         - Organisation
       responses:
-        '200':
+        "200":
           description: OK
           content:
             application/json:
@@ -846,7 +790,7 @@ paths:
                   message:
                     type: string
                     example: Successfully deleted Admin.
-        '401':
+        "401":
           description: Not logged in.
           content:
             application/json:
@@ -855,7 +799,7 @@ paths:
                   error:
                     type: string
                     example: Not logged in.
-        '403':
+        "403":
           description: User is not a SuperUser.
           content:
             application/json:
@@ -898,7 +842,7 @@ paths:
                   type: string
                   example: 2024-04-15T18:25:43.511Z
       responses:
-        '200':
+        "200":
           description: OK
           content:
             application/json:
@@ -907,7 +851,7 @@ paths:
                   message:
                     type: string
                     example: Successfully created campaign.
-        '403':
+        "403":
           description: User is not an admin of specified organisation.
           content:
             application/json:
@@ -923,7 +867,7 @@ paths:
       tags:
         - Campaign
       responses:
-        '200':
+        "200":
           description: OK
           content:
             application/json:
@@ -975,7 +919,7 @@ paths:
       tags:
         - Campaign
       responses:
-        '200':
+        "200":
           description: OK
           content:
             application/json:
@@ -1039,7 +983,7 @@ paths:
       tags:
         - Campaign
       responses:
-        '200':
+        "200":
           description: OK
           content:
             application/json:
@@ -1048,7 +992,7 @@ paths:
                   message:
                     type: string
                     example: Successfully updated campaign.
-        '401':
+        "401":
           description: Not logged in.
           content:
             application/json:
@@ -1057,7 +1001,7 @@ paths:
                   error:
                     type: string
                     example: Not logged in.
-        '403':
+        "403":
           description: User is not an organisation admin.
           content:
             application/json:
@@ -1080,7 +1024,7 @@ paths:
       tags:
         - Campaign
       responses:
-        '200':
+        "200":
           description: OK
           content:
             application/json:
@@ -1089,7 +1033,7 @@ paths:
                   message:
                     type: string
                     example: Successfully deleted campaign.
-        '403':
+        "403":
           description: User is not an admin of campaign's organisation.
           content:
             application/json:
@@ -1113,7 +1057,7 @@ paths:
       tags:
         - Campaign
       responses:
-        '200':
+        "200":
           description: OK
           content:
             application/json:
@@ -1123,7 +1067,7 @@ paths:
                     type: string
                     description: Presigned S3 url to upload file.
                     example: https://www.youtube.com/watch?v=dQw4w9WgXcQ
-        '401':
+        "401":
           description: Not logged in.
           content:
             application/json:
@@ -1132,7 +1076,7 @@ paths:
                   error:
                     type: string
                     example: Not logged in.
-        '403':
+        "403":
           description: User is not an organisation admin.
           content:
             application/json:
@@ -1180,7 +1124,7 @@ paths:
                   description: Whether this role has been finalised (e.g. max avaliable number)
                   example: False
       responses:
-        '200':
+        "200":
           description: OK
           content:
             application/json:
@@ -1189,7 +1133,7 @@ paths:
                   message:
                     type: string
                     example: Successfully created organisation.
-        '403':
+        "403":
           description: User is not a Campaign Admin.
           content:
             application/json:
@@ -1214,7 +1158,7 @@ paths:
       tags:
         - Campaign
       responses:
-        '200':
+        "200":
           description: OK
           content:
             application/json:
@@ -1223,8 +1167,8 @@ paths:
                   campaigns:
                     type: array
                     items:
-                      $ref: '#components/schemas/RoleDetails'
-        '401':
+                      $ref: "#components/schemas/RoleDetails"
+        "401":
           description: Not logged in.
           content:
             application/json:
@@ -1233,7 +1177,7 @@ paths:
                   error:
                     type: string
                     example: Not logged in.
-        '403':
+        "403":
           description: User is not a Campaign Admin.
           content:
             application/json:
@@ -1258,7 +1202,7 @@ paths:
       tags:
         - Campaign
       responses:
-        '200':
+        "200":
           description: OK
           content:
             application/json:
@@ -1267,8 +1211,8 @@ paths:
                   applications:
                     type: array
                     items:
-                      $ref: '#components/schemas/ApplicationDetails'
-        '401':
+                      $ref: "#components/schemas/ApplicationDetails"
+        "401":
           description: Not logged in.
           content:
             application/json:
@@ -1277,7 +1221,7 @@ paths:
                   error:
                     type: string
                     example: Not logged in.
-        '403':
+        "403":
           description: User is not a Campaign Admin.
           content:
             application/json:
@@ -1287,7 +1231,6 @@ paths:
                     type: string
                     example: Unauthorized
 
-
   /role/{id}:
     get:
       operationId: getRoleById
@@ -1303,7 +1246,7 @@ paths:
       tags:
         - Role
       responses:
-        '200':
+        "200":
           description: OK
           content:
             application/json:
@@ -1325,7 +1268,7 @@ paths:
                     type: boolean
                     description: Whether this role has been finalised (e.g. max avaliable number)
                     example: False
-        '401':
+        "401":
           description: Not logged in.
           content:
             application/json:
@@ -1372,7 +1315,7 @@ paths:
                   description: Whether this role has been finalised (e.g. max avaliable number)
                   example: true
       responses:
-        '200':
+        "200":
           description: OK
           content:
             application/json:
@@ -1381,7 +1324,7 @@ paths:
                   message:
                     type: string
                     example: Successfully update organisation.
-        '401':
+        "401":
           description: Not logged in.
           content:
             application/json:
@@ -1390,7 +1333,7 @@ paths:
                   error:
                     type: string
                     example: Not logged in.
-        '403':
+        "403":
           description: User is not a Campaign Admin.
           content:
             application/json:
@@ -1414,7 +1357,7 @@ paths:
       tags:
         - Role
       responses:
-        '200':
+        "200":
           description: OK
           content:
             application/json:
@@ -1423,7 +1366,7 @@ paths:
                   message:
                     type: string
                     example: Successfully deleted role.
-        '401':
+        "401":
           description: Not logged in.
           content:
             application/json:
@@ -1432,7 +1375,7 @@ paths:
                   error:
                     type: string
                     example: Not logged in.
-        '403':
+        "403":
           description: User is not an admin of role's Campaign.
           content:
             application/json:
@@ -1457,7 +1400,7 @@ paths:
       tags:
         - Role
       responses:
-        '200':
+        "200":
           description: OK
           content:
             application/json:
@@ -1466,8 +1409,8 @@ paths:
                   applications:
                     type: array
                     items:
-                      $ref: '#components/schemas/ApplicationDetails'
-        '401':
+                      $ref: "#components/schemas/ApplicationDetails"
+        "401":
           description: Not logged in.
           content:
             application/json:
@@ -1476,7 +1419,7 @@ paths:
                   error:
                     type: string
                     example: Not logged in.
-        '403':
+        "403":
           description: User is not an Application Admin.
           content:
             application/json:
@@ -1501,7 +1444,7 @@ paths:
       tags:
         - Application
       responses:
-        '200':
+        "200":
           description: OK
           content:
             application/json:
@@ -1509,8 +1452,8 @@ paths:
                 properties:
                   application:
                     type:
-                      $ref: '#components/schemas/ApplicationDetails'
-        '401':
+                      $ref: "#components/schemas/ApplicationDetails"
+        "401":
           description: Not logged in.
           content:
             application/json:
@@ -1519,7 +1462,7 @@ paths:
                   error:
                     type: string
                     example: Not logged in.
-        '403':
+        "403":
           description: User is not an Application Admin.
           content:
             application/json:
@@ -1529,7 +1472,6 @@ paths:
                     type: string
                     example: Unauthorized
 
-
   /application/{id}/private:
     put:
       operationId: updateApplicationPrivateStatus
@@ -1549,13 +1491,13 @@ paths:
               properties:
                 data:
                   type:
-                    $ref: '#components/schemas/ApplicationStatus'
+                    $ref: "#components/schemas/ApplicationStatus"
 
       description: Change Private Status of a specific Application
       tags:
         - Organisation
       responses:
-        '200':
+        "200":
           description: OK
           content:
             application/json:
@@ -1564,7 +1506,7 @@ paths:
                   message:
                     type: string
                     example: Successfully updated Application Private Status.
-        '401':
+        "401":
           description: Not logged in.
           content:
             application/json:
@@ -1573,7 +1515,7 @@ paths:
                   error:
                     type: string
                     example: Not logged in.
-        '403':
+        "403":
           description: User is not an Application Admin.
           content:
             application/json:
@@ -1602,13 +1544,13 @@ paths:
               properties:
                 data:
                   type:
-                    $ref: '#components/schemas/ApplicationStatus'
+                    $ref: "#components/schemas/ApplicationStatus"
 
       description: Change Status of a specific Application
       tags:
         - Organisation
       responses:
-        '200':
+        "200":
           description: OK
           content:
             application/json:
@@ -1617,7 +1559,7 @@ paths:
                   message:
                     type: string
                     example: Successfully updated Application Status.
-        '401':
+        "401":
           description: Not logged in.
           content:
             application/json:
@@ -1626,7 +1568,7 @@ paths:
                   error:
                     type: string
                     example: Not logged in.
-        '403':
+        "403":
           description: User is not an Application Admin.
           content:
             application/json:
@@ -1638,6 +1580,27 @@ paths:
 
 components:
   schemas:
+    NotLoggedIn:
+      type: object
+      properties:
+        message:
+          type: string
+          example: Not logged in
+
+    Unauthorized:
+      type: object
+      properties:
+        message:
+          type: string
+          example: Unauthorized
+
+    BadRequest:
+      type: object
+      properties:
+        message:
+          type: string
+          example: Bad request
+
     Answer:
       type: object
       properties:
@@ -1665,7 +1628,8 @@ components:
               example: 6996987893965227483
             - type: array
               format: int64
-              example: [6996987893965227483, 69969829832652228374, 6996987893965228374]
+              example:
+                [6996987893965227483, 69969829832652228374, 6996987893965228374]
         created_at:
           type: string
           example: 2024-03-15T18:25:43.511Z
@@ -1696,9 +1660,8 @@ components:
               example: 6996987893965227483
             - type: array
               format: int64
-              example: [6996987893965227483, 69969829832652228374, 6996987893965228374]
-
-
+              example:
+                [6996987893965227483, 69969829832652228374, 6996987893965228374]
 
     ApplicationStatus:
       type: string
@@ -1758,6 +1721,43 @@ components:
           description: Whether this role has been finalised (e.g. max avaliable number)
           example: False
 
+    User:
+      type: object
+      properties:
+        id:
+          type: integer
+          format: int64
+          example: 1541815603606036480
+        email:
+          type: string
+          example: me@example.com
+        zid:
+          type: string
+          example: z5555555
+          nullable: true
+        name:
+          type: string
+          example: Clancy Lion
+        pronouns:
+          type: string
+          example: He/Him
+        gender:
+          type: string
+          example: Male
+        degree_name:
+          type: string
+          example: Computer Science
+          nullable: true
+        degree_starting_year:
+          type: integer
+          example: 2024
+          nullable: true
+        role:
+          type: string
+          enum:
+            - User
+            - SuperUser
+
     UserDetails:
       type: object
       properties:
@@ -1799,15 +1799,15 @@ components:
           format: int64
           example: 5141815603606036480
         user:
-          $ref: '#/components/schemas/UserDetails'
+          $ref: "#/components/schemas/UserDetails"
         status:
-          $ref: '#/components/schemas/ApplicationStatus'
+          $ref: "#/components/schemas/ApplicationStatus"
         private_status:
-          $ref: '#/components/schemas/ApplicationStatus'
+          $ref: "#/components/schemas/ApplicationStatus"
         applied_roles:
           type: array
           items:
-            $ref: '#/components/schemas/ApplicationAppliedRoleDetails'
+            $ref: "#/components/schemas/ApplicationAppliedRoleDetails"
 
     ApplicationAppliedRoleDetails:
       type: object
@@ -1818,4 +1818,8 @@ components:
           example: 1541815603606036480
         role_name:
           type: String
-          example: UI/UX subcom
\ No newline at end of file
+          example: Sponsorships
+        preference:
+          type: integer
+          format: int32
+          example: 1