Add custom AuthErrorHandler for improved authentication error handling#43
Merged
moutonjeremy merged 4 commits intomainfrom Mar 13, 2026
Merged
Add custom AuthErrorHandler for improved authentication error handling#43moutonjeremy merged 4 commits intomainfrom
moutonjeremy merged 4 commits intomainfrom
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Pull request overview
This PR adds a configurable hook to customize HTTP responses produced when authentication/authorization fails, allowing applications to override the default 401/403 JSON error shape.
Changes:
- Add
AuthErrorHandlertype andConfig.AuthErrorHandlerto support custom auth error responses. - Wire the custom handler into request processing (auth/authorization errors handled before validation errors).
- Add tests and update the auth example to demonstrate the new handler.
Reviewed changes
Copilot reviewed 4 out of 4 changed files in this pull request and generated 2 comments.
| File | Description |
|---|---|
types.go |
Introduces the AuthErrorHandler function type and adds it to Config. |
fiberoapi.go |
Merges AuthErrorHandler in New() and invokes it when AuthError is returned from request parsing/auth validation. |
auth_test.go |
Adds coverage ensuring a custom handler overrides default 401/403 responses. |
_examples/auth/main.go |
Demonstrates configuring AuthErrorHandler in the auth example. |
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Comment on lines
39
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| hasExplicitConfig := provided.EnableAuthorization || | ||
| provided.AuthService != nil || | ||
| provided.SecuritySchemes != nil || | ||
| provided.OpenAPIDocsPath != "" || | ||
| provided.OpenAPIJSONPath != "" || | ||
| provided.OpenAPIYamlPath != "" || | ||
| provided.ValidationErrorHandler != nil | ||
| provided.ValidationErrorHandler != nil || | ||
| provided.AuthErrorHandler != nil |
Comment on lines
75
to
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| ValidationErrorHandler ValidationErrorHandler // Custom handler for validation errors | ||
| AuthErrorHandler AuthErrorHandler // Custom handler for auth errors (401/403) |
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Introduce a custom AuthErrorHandler to enhance error responses for authentication and authorization errors. This includes tests to verify the functionality of the custom handler.