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api_error.go
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/
api_error.go
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package server
import (
"errors"
"net/http"
"github.com/mrbenosborne/go-http-cache/store"
)
// APIError a type of error that includes a
// friendly error message and a custom HTTP Status
// code.
type APIError struct {
err error
Message string `json:"error"`
HTTPCode int `json:"-"`
}
// Error return the error
func (a APIError) Error() string {
return a.err.Error()
}
// NewAPIError return a new type of APIError.
func NewAPIError(internalErrorCode int, err error) error {
friendlyErrors := getFriendlyErrors()
if e, ok := friendlyErrors[internalErrorCode]; ok {
if err != nil {
e.err = err
return e
}
e.err = errors.New(e.Message)
return e
}
if err != nil {
return err
}
return errors.New("unknown error")
}
func getFriendlyErrors() map[int]APIError {
return map[int]APIError{
int(store.NoKeySpecified): {
Message: "no key specified",
HTTPCode: http.StatusBadRequest,
},
}
}