problem

type Problem struct {
	// Type is a URI reference that identifies the problem type.
	// When this member is not present, its value is assumed to be "about:blank".
	Type string `json:"type,omitempty"`

	// Title is a short, human-readable summary of the problem type.
	// It SHOULD NOT change from occurrence to occurrence of the problem,
	// except for purposes of localization.
	Title string `json:"title,omitempty"`

	// Status is the HTTP status code generated by the origin server for this
	// occurrence of the problem.
	Status int `json:"status,omitempty"`

	// Detail is a human-readable explanation specific to this occurrence of
	// the problem.
	Detail string `json:"detail,omitempty"`

	// Instance is a URI reference that identifies the specific occurrence of
	// the problem.
	Instance string `json:"instance,omitempty"`

	// RequestID is an extension field for request correlation.
	RequestID string `json:"request_id,omitempty"`

	// Extensions allows additional fields to be added to the response.
	Extensions map[string]any `json:"-"`
}