diff --git a/docs/swagger.json b/docs/swagger.json
index e74c083a..adfcff82 100644
--- a/docs/swagger.json
+++ b/docs/swagger.json
@@ -1 +1 @@
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\ No newline at end of file
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error","content":{"application/json":{"schema":{"$ref":"#/components/schemas/Error"}}}}}}},"/api/v1/mcaptcha/domain/token/token/update":{"post":{"security":[{"cookieAuth":[]}],"tags":["mcaptcha","domain","token","levels","duration"],"summary":"update duration of a token","operationId":"updateTokenDuration","requestBody":{"required":true,"content":{"application/json":{"schema":{"$ref":"#/components/schemas/UpdateDuration"}}}},"responses":{"200":{"description":"OK"},"400":{"description":"Bad request: Duration must be greater than 0"},"401":{"description":"(cookie)authentication required or wrong password","content":{"application/json":{"schema":{"$ref":"#/components/schemas/Error"}}}},"500":{"description":"Internal server error","content":{"application/json":{"schema":{"$ref":"#/components/schemas/Error"}}}}}}}},"components":{"schemas":{"RegisterUser":{"type":"object","required":["username","password","email"],"properties":{"username":{"type":"string"},"email":{"type":"string"},"password":{"type":"string","format":"password"}}},"LoginUser":{"type":"object","required":["username","password"],"properties":{"username":{"type":"string"},"password":{"type":"string","format":"password"}}},"DeleteUser":{"type":"object","required":["password"],"properties":{"password":{"type":"string","format":"password"}}},"Error":{"type":"object","required":["error"],"properties":{"error":{"type":"string"}}},"User":{"type":"object","required":["id","name"],"properties":{"id":{"type":"integer","format":"int64"},"name":{"type":"string"}}},"UserDetailCheck":{"type":"object","required":["val"],"properties":{"val":{"type":"string"}}},"Health":{"type":"object","required":["db"],"properties":{"db":{"type":"boolean"}}},"UserDetailCheckRes":{"type":"object","required":["exists"],"properties":{"val":{"type":"boolean"}}},"BuildDetails":{"type":"object","required":["version","git_commit_hash"],"properties":{"version":{"type":"string"},"git_commit_hash":{"type":"string"}}},"AddDomain":{"type":"object","required":["name"],"properties":{"name":{"type":"string"}}},"DomainVerificationChallenge":{"type":"object","required":["verification_challenge"],"properties":{"verification_challenge":{"type":"string"}}},"MCaptchaID":{"type":"object","required":["name","domain"],"properties":{"name":{"type":"string"},"domain":{"type":"string"}}},"MCaptchaDetails":{"type":"object","required":["name","key"],"properties":{"name":{"type":"string"},"key":{"type":"string"}}},"Level":{"type":"object","required":["visitor_threshold","difficulty_factor"],"properties":{"visitor_threshold":{"type":"number","minimum":1,"maximum":2147483647},"difficulty_factor":{"type":"number","minimum":1}}},"GetLevels":{"type":"object","required":["token"],"properties":{"token":{"type":"string"}}},"Levels":{"type":"array","items":{"$ref":"#/components/schemas/Level"}},"AddLevels":{"type":"object","required":["name","levels"],"properties":{"name":{"type":"string"},"levels":{"type":"array","items":{"$ref":"#/components/schemas/Level"}}}},"GetDuration":{"type":"object","required":["token"],"properties":{"token":{"type":"string"}}},"Duration":{"type":"object","required":["duration"],"properties":{"duration":{"type":"number","minimum":1,"maximum":2147483647}}},"UpdateDuration":{"type":"object","required":["duration","token_name"],"properties":{"token_name":{"type":"string"},"duration":{"type":"number","minimum":1,"maximum":2147483647}}}},"securitySchemes":{"cookieAuth":{"type":"apiKey","in":"cookie","name":"Authorization"}}}}
\ No newline at end of file
diff --git a/openapi.yaml b/openapi.yaml
index 065f7b8a..77a3dc29 100644
--- a/openapi.yaml
+++ b/openapi.yaml
@@ -17,6 +17,10 @@ paths:
           application/json:
             schema:
               $ref: '#/components/schemas/RegisterUser'
+            example:
+              username: "testuser"
+              password: "mysuperlongandsecurepassword"
+              email: "testuser@example.com"
       responses:
         '200':
           description: Successful registration
@@ -48,6 +52,9 @@ paths:
           application/json:
             schema:
               $ref: '#/components/schemas/LoginUser'
+            example:
+              username: "testuser"
+              password: "mysuperlongandsecurepassword"
       responses:
         '200':
           description: Successful authentication
@@ -95,6 +102,8 @@ paths:
           application/json:
             schema:
               $ref: '#/components/schemas/DeleteUser'
+            example:
+              password: "mysuperlongandsecurepassword"
       responses:
         '200':
           description: OK
@@ -128,6 +137,8 @@ paths:
           application/json:
             schema:
               $ref: '#/components/schemas/UserDetailCheck'
+            example:
+              val: "testuser"
       responses:
         '200':
           description: OK
@@ -153,6 +164,8 @@ paths:
           application/json:
             schema:
               $ref: '#/components/schemas/UserDetailCheck'
+            example:
+              val: "testuser@example.com"
       responses:
         '200':
           description: OK
@@ -208,7 +221,7 @@ paths:
         content:
           application/json:
             schema:
-              $ref: '#/components/schemas/addDomain'
+              $ref: '#/components/schemas/AddDomain'
 
       responses:
         '200':
@@ -246,7 +259,7 @@ paths:
         content:
           application/json:
             schema:
-              $ref: '#/components/schemas/addDomain'
+              $ref: '#/components/schemas/AddDomain'
 
       responses:
         '200':
@@ -288,7 +301,7 @@ paths:
         content:
           application/json:
             schema:
-              $ref: '#/components/schemas/addDomain'
+              $ref: '#/components/schemas/AddDomain'
 
       responses:
         '200':
@@ -332,7 +345,7 @@ paths:
         content:
           application/json:
             schema:
-              $ref: '#/components/schemas/addDomain'
+              $ref: '#/components/schemas/AddDomain'
 
       responses:
         '200':
diff --git a/src/api/v1/mcaptcha/levels.rs b/src/api/v1/mcaptcha/levels.rs
index 67a9371c..894f75bf 100644
--- a/src/api/v1/mcaptcha/levels.rs
+++ b/src/api/v1/mcaptcha/levels.rs
@@ -31,6 +31,8 @@ pub struct AddLevels {
     pub name: String,
 }
 
+// TODO try for non-existent token names
+
 #[post("/api/v1/mcaptcha/domain/token/levels/add")]
 pub async fn add_levels(
     payload: web::Json<AddLevels>,
diff --git a/src/errors.rs b/src/errors.rs
index 95fcba43..a7e77453 100644
--- a/src/errors.rs
+++ b/src/errors.rs
@@ -138,7 +138,6 @@ impl ResponseError for ServiceError {
             ServiceError::ChallengeVerificationFailure => StatusCode::UNAUTHORIZED,
             ServiceError::CaptchaError(e) => match e {
                 CaptchaError::MailboxError => StatusCode::INTERNAL_SERVER_ERROR,
-
                 _ => StatusCode::BAD_REQUEST,
             },
         }