Error Handling

Overview

The LatentGEO API uses standard HTTP status codes to indicate the success or failure of requests. Error responses include detailed messages and, where applicable, additional context headers.

HTTP Status Codes

Status Code	Description	Common Scenarios
`200`	OK	Successful GET, PUT, PATCH, or DELETE request
`201`	Created	Successful resource creation (POST)
`400`	Bad Request	Invalid request payload, malformed JSON, invalid OAuth state
`401`	Unauthorized	Missing, invalid, or expired authentication token; OAuth state-user mismatch
`403`	Forbidden	Cross-user access denied, ownerless connection blocked in production
`404`	Not Found	Requested resource does not exist
`409`	Conflict	Resource conflict (e.g., active PDF generation lock)
`422`	Unprocessable Entity	Validation errors, missing required fields, invalid field values
`500`	Internal Server Error	Unexpected server error
`503`	Service Unavailable	Service is unhealthy or temporarily unavailable

Error Response Format

Standard Error Response

Most errors return a JSON response with a detail field:

{
  "detail": "Human-readable error message"
}

Validation Error Response (422)

Validation errors include detailed field-level information:

{
  "detail": [
    {
      "loc": ["body", "email"],
      "msg": "field required",
      "type": "value_error.missing"
    },
    {
      "loc": ["body", "connection_id"],
      "msg": "value is not a valid integer",
      "type": "type_error.integer"
    }
  ]
}

Authentication Error Response (401)

Authentication failures include a special header for error identification:

HTTP/1.1 401 Unauthorized
WWW-Authenticate: Bearer
X-Auth-Error-Code: expired_token
Content-Type: application/json

{
  "detail": "Token expirado"
}

Common Error Scenarios

Authentication Failures (401)

Missing Token

Request:

curl http://localhost:8000/api/v1/github/connections

Response:

HTTP/1.1 401 Unauthorized
X-Auth-Error-Code: missing_token

{
  "detail": "Token no proporcionado"
}

Expired Token

Request:

curl -H "Authorization: Bearer EXPIRED_TOKEN" \
  http://localhost:8000/api/v1/github/connections

Response:

HTTP/1.1 401 Unauthorized
X-Auth-Error-Code: expired_token

{
  "detail": "Token expirado"
}

Invalid Signature

Request:

curl -H "Authorization: Bearer INVALID_TOKEN" \
  http://localhost:8000/api/v1/github/connections

Response:

HTTP/1.1 401 Unauthorized
X-Auth-Error-Code: invalid_signature

{
  "detail": "Token inválido"
}

Invalid Issuer

Request:

curl -H "Authorization: Bearer TOKEN_FROM_WRONG_ISSUER" \
  http://localhost:8000/api/v1/github/connections

Response:

HTTP/1.1 401 Unauthorized
X-Auth-Error-Code: invalid_issuer

{
  "detail": "Issuer inválido"
}

Missing Subject Claim

Request:

curl -H "Authorization: Bearer TOKEN_WITHOUT_SUB" \
  http://localhost:8000/api/v1/github/connections

Response:

HTTP/1.1 401 Unauthorized
X-Auth-Error-Code: missing_sub

{
  "detail": "Token inválido: sin sub"
}

JWKS Unavailable

Response:

HTTP/1.1 401 Unauthorized
X-Auth-Error-Code: jwks_unavailable

{
  "detail": "No se pudo obtener JWKS de Auth0"
}

Authorization Failures (403)

Cross-User Access Denied

Scenario: User attempts to access another user’s connection. Request:

curl -H "Authorization: Bearer YOUR_TOKEN" \
  http://localhost:8000/api/v1/hubspot/pages/OTHER_USER_CONNECTION_ID

Response:

HTTP/1.1 403 Forbidden

{
  "detail": "Access denied: resource belongs to another user"
}

Ownerless Connection Blocked

Scenario: In production mode, accessing a legacy connection without an owner. Request:

curl -H "Authorization: Bearer YOUR_TOKEN" \
  http://localhost:8000/api/v1/github/sync/LEGACY_CONNECTION_ID

Response:

HTTP/1.1 403 Forbidden

{
  "detail": "Ownerless connections are blocked in production"
}

Bad Request (400)

Invalid OAuth State

Scenario: OAuth callback with expired or invalid state token. Request:

curl -X POST http://localhost:8000/api/v1/github/callback \
  -H "Authorization: Bearer YOUR_TOKEN" \
  -H "Content-Type: application/json" \
  -d '{"code": "oauth_code", "state": "invalid_state"}'

Response:

HTTP/1.1 400 Bad Request

{
  "detail": "Invalid or expired OAuth state"
}

Malformed JSON

Request:

curl -X POST http://localhost:8000/api/v1/github/callback \
  -H "Authorization: Bearer YOUR_TOKEN" \
  -H "Content-Type: application/json" \
  -d '{invalid json}'

Response:

HTTP/1.1 400 Bad Request

{
  "detail": "Invalid JSON in request body"
}

Not Found (404)

Request:

curl -H "Authorization: Bearer YOUR_TOKEN" \
  http://localhost:8000/api/v1/github/repositories/99999

Response:

HTTP/1.1 404 Not Found

{
  "detail": "Connection not found"
}

Conflict (409)

Scenario: Attempting to generate a PDF while another generation is in progress. Request:

curl -X POST http://localhost:8000/api/v1/reports/generate/AUDIT_ID \
  -H "Authorization: Bearer YOUR_TOKEN"

Response:

HTTP/1.1 409 Conflict

{
  "detail": "PDF generation already in progress for this audit"
}

Validation Error (422)

Request:

curl -X POST http://localhost:8000/api/v1/github/create-pr \
  -H "Authorization: Bearer YOUR_TOKEN" \
  -H "Content-Type: application/json" \
  -d '{
    "connection_id": "not_a_number",
    "title": ""
  }'

Response:

HTTP/1.1 422 Unprocessable Entity

{
  "detail": [
    {
      "loc": ["body", "connection_id"],
      "msg": "value is not a valid integer",
      "type": "type_error.integer"
    },
    {
      "loc": ["body", "title"],
      "msg": "ensure this value has at least 1 characters",
      "type": "value_error.any_str.min_length",
      "ctx": {"limit_value": 1}
    },
    {
      "loc": ["body", "description"],
      "msg": "field required",
      "type": "value_error.missing"
    }
  ]
}

Internal Server Error (500)

Response:

HTTP/1.1 500 Internal Server Error

{
  "detail": "Internal server error"
}

Service Unavailable (503)

Scenario: Database connection is down. Request:

curl http://localhost:8000/health

Response:

HTTP/1.1 503 Service Unavailable

{
  "status": "unhealthy",
  "services": {
    "database": "disconnected",
    "redis": "connected"
  }
}

Authentication Error Codes

The X-Auth-Error-Code header provides machine-readable error identification:

Error Code	Description
`missing_token`	No Authorization header provided
`expired_token`	JWT has expired (exp claim)
`invalid_signature`	Token signature verification failed or missing kid
`invalid_issuer`	Issuer claim doesn’t match Auth0 domain
`invalid_audience`	Audience claim doesn’t match API audience
`missing_sub`	Token missing required sub claim
`jwks_unavailable`	Unable to fetch or validate JWKS from Auth0
`invalid_client`	Client ID doesn’t match expected value

Best Practices

Check status codes - Always check the HTTP status code before parsing response body
Handle auth errors - Use X-Auth-Error-Code header for specific authentication error handling
Parse validation errors - For 422 responses, iterate through the detail array for field-specific errors
Retry logic - Implement exponential backoff for 500 and 503 errors
User-friendly messages - Map technical error codes to user-friendly messages in your UI
Log errors - Log full error responses for debugging, including headers and response body
Monitor error rates - Track error rates by status code to identify systemic issues

Error Monitoring

In production, errors are automatically reported to Sentry when SENTRY_DSN is configured. Authentication failures are also logged with counters for security monitoring.

Overview

Endpoints

Advanced

Overview

HTTP Status Codes

Error Response Format

Standard Error Response

Validation Error Response (422)

Authentication Error Response (401)

Common Error Scenarios

Authentication Failures (401)

Missing Token

Expired Token

Invalid Signature

Invalid Issuer

Missing Subject Claim

JWKS Unavailable

Authorization Failures (403)

Cross-User Access Denied

Ownerless Connection Blocked

Bad Request (400)

Invalid OAuth State

Malformed JSON

Not Found (404)

Conflict (409)

Validation Error (422)

Internal Server Error (500)

Service Unavailable (503)

Authentication Error Codes

Best Practices

Error Monitoring

Build docs developers (and LLMs) love

Overview

Endpoints

Advanced

Documentation Index

​Overview

​HTTP Status Codes

​Error Response Format

​Standard Error Response

​Validation Error Response (422)

​Authentication Error Response (401)

​Common Error Scenarios

​Authentication Failures (401)

​Missing Token

​Expired Token

​Invalid Signature

​Invalid Issuer

​Missing Subject Claim

​JWKS Unavailable

​Authorization Failures (403)

​Cross-User Access Denied

​Ownerless Connection Blocked

​Bad Request (400)

​Invalid OAuth State

​Malformed JSON

​Not Found (404)

​Conflict (409)

​Validation Error (422)

​Internal Server Error (500)

​Service Unavailable (503)

​Authentication Error Codes

​Best Practices

​Error Monitoring

Build docs developers (and LLMs) love

Overview

HTTP Status Codes

Error Response Format

Standard Error Response

Validation Error Response (422)

Authentication Error Response (401)

Common Error Scenarios

Authentication Failures (401)

Missing Token

Expired Token

Invalid Signature

Invalid Issuer

Missing Subject Claim

JWKS Unavailable

Authorization Failures (403)

Cross-User Access Denied

Ownerless Connection Blocked

Bad Request (400)

Invalid OAuth State

Malformed JSON

Not Found (404)

Conflict (409)

Validation Error (422)

Internal Server Error (500)

Service Unavailable (503)

Authentication Error Codes

Best Practices

Error Monitoring