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response.go
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/
response.go
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package sawyer
import (
"errors"
"github.com/lostisland/go-sawyer/mediaheader"
"github.com/lostisland/go-sawyer/mediatype"
"net/http"
)
type Response struct {
ResponseError error
MediaType *mediatype.MediaType
MediaHeader *mediaheader.MediaHeader
isApiError bool
BodyClosed bool
*http.Response
}
func (r *Response) AnyError() bool {
return r.IsError() || r.IsApiError()
}
func (r *Response) IsError() bool {
return r.ResponseError != nil
}
func (r *Response) IsApiError() bool {
return r.isApiError
}
func (r *Response) Error() string {
if r.ResponseError != nil {
return r.ResponseError.Error()
}
return ""
}
func (r *Response) Decode(resource interface{}) error {
if r.MediaType == nil {
return errors.New("No media type for this response")
}
if resource == nil || r.ResponseError != nil || r.BodyClosed {
return r.ResponseError
}
defer r.Body.Close()
r.BodyClosed = true
dec, err := r.MediaType.Decoder(r.Body)
if err != nil {
r.ResponseError = err
} else {
r.ResponseError = dec.Decode(resource)
}
return r.ResponseError
}
func (r *Response) decode(output interface{}) {
if !r.isApiError {
r.Decode(output)
}
}
func ResponseError(err error) *Response {
return &Response{ResponseError: err, BodyClosed: true}
}
func UseApiError(status int) bool {
switch {
case status > 199 && status < 300:
return false
case status == 304:
return false
case status == 0:
return false
}
return true
}
func mediaType(res *http.Response) (*mediatype.MediaType, error) {
if ctype := res.Header.Get(ctypeHeader); len(ctype) > 0 {
return mediatype.Parse(ctype)
}
return nil, nil
}