Problem Details for HTTP APIs (RFC 9457)

1. Problem details JSON object

   The object structure and media types application/problem+json and +xml.

2. Members of a problem details object

   type, status, title, detail and instance members.

3. Extension members

   Adding custom fields such as validation errors.

4. Defining new problem types

   Designing problem type URIs and documentation.

5. Registered problem types

   about:blank and when to use it.

6. Security considerations

   Avoiding leaking sensitive details and mixing status codes.

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