⚠️ Client Error RFC 9110, Section 15.5.21

Unprocessable Content

The server understands the content type and syntax but cannot process the contained instructions.

Common Use

Very common in REST APIs. Validation errors: missing required fields, invalid values, business rule violations. The request is syntactically correct but semantically invalid.

API Endpoint

https://codes.uncodigo.com/http/422

Example with curl

curl -i https://codes.uncodigo.com/http/422

Try It

Request URL


GET /http/422

Response

Click "Send Request" to see the response...

Example

Request

POST /api/users HTTP/1.1

{"email": "not-an-email"}

Response

HTTP/1.1 422 Unprocessable Content

{"errors": {"email": "Invalid format"}}

Related Codes

400 Bad Request 409 Conflict