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68 lines
1.5 KiB
Go
68 lines
1.5 KiB
Go
package authority
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import (
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"encoding/json"
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"fmt"
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"net/http"
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)
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type apiCtx map[string]interface{}
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// Error implements the api.Error interface and adds context to error messages.
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type apiError struct {
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err error
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code int
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context apiCtx
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}
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// Cause implements the errors.Causer interface and returns the original error.
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func (e *apiError) Cause() error {
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return e.err
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}
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// Error returns an error message with additional context.
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func (e *apiError) Error() string {
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ret := e.err.Error()
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/*
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if len(e.context) > 0 {
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ret += "\n\nContext:"
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for k, v := range e.context {
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ret += fmt.Sprintf("\n %s: %v", k, v)
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}
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}
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*/
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return ret
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}
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// ErrorResponse represents an error in JSON format.
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type ErrorResponse struct {
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Status int `json:"status"`
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Message string `json:"message"`
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}
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// StatusCode returns an http status code indicating the type and severity of
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// the error.
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func (e *apiError) StatusCode() int {
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if e.code == 0 {
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return http.StatusInternalServerError
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}
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return e.code
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}
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// MarshalJSON implements json.Marshaller interface for the Error struct.
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func (e *apiError) MarshalJSON() ([]byte, error) {
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return json.Marshal(&ErrorResponse{Status: e.code, Message: http.StatusText(e.code)})
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}
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// UnmarshalJSON implements json.Unmarshaler interface for the Error struct.
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func (e *apiError) UnmarshalJSON(data []byte) error {
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var er ErrorResponse
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if err := json.Unmarshal(data, &er); err != nil {
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return err
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}
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e.code = er.Status
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e.err = fmt.Errorf(er.Message)
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return nil
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}
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