s0rg/crawley

package client

import (
    "net/http"
)

// HTTPError wraps non-200 HTTP state.
type HTTPError struct {
    msg  string
    code int
}

// ErrFromResp creates new HTTPError from response.
func ErrFromResp(resp *http.Response) (err error) {
    code := resp.StatusCode

    // reduce possible statuses to only two - 400 or 500
    switch {
    case code >= http.StatusInternalServerError:
        code = http.StatusInternalServerError
    case code >= http.StatusBadRequest:
        code = http.StatusBadRequest
    }

    return HTTPError{code: code, msg: resp.Status}
}

// Error return error textual representation.
func (herr HTTPError) Error() string {
    return herr.msg
}

// Code returns HTTP status code, caused this error.
func (herr HTTPError) Code() int {
    return herr.code
}