99 lines
2.2 KiB
Go
99 lines
2.2 KiB
Go
package requests
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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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"github.com/bitly/go-simplejson"
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)
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// Result is the result of a request created by a Builder
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type Result interface {
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Error() error
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StatusCode() int
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Headers() http.Header
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Body() []byte
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UnmarshalInto(interface{}) error
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UnmarshalJSON() (*simplejson.Json, error)
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}
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type result struct {
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err error
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response *http.Response
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body []byte
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}
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// Error returns an error from the result if present
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func (r *result) Error() error {
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return r.err
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}
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// StatusCode returns the response's status code
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func (r *result) StatusCode() int {
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if r.response != nil {
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return r.response.StatusCode
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}
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return 0
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}
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// Headers returns the response's headers
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func (r *result) Headers() http.Header {
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if r.response != nil {
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return r.response.Header
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}
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return nil
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}
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// Body returns the response's body
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func (r *result) Body() []byte {
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return r.body
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}
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// UnmarshalInto attempts to unmarshal the response into the the given interface.
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// The response body is assumed to be JSON.
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// The response must have a 200 status otherwise an error will be returned.
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func (r *result) UnmarshalInto(into interface{}) error {
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body, err := r.getBodyForUnmarshal()
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if err != nil {
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return err
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}
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if err := json.Unmarshal(body, into); err != nil {
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return fmt.Errorf("error unmarshalling body: %v", err)
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}
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return nil
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}
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// UnmarshalJSON performs the request and attempts to unmarshal the response into a
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// simplejson.Json. The response body is assume to be JSON.
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// The response must have a 200 status otherwise an error will be returned.
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func (r *result) UnmarshalJSON() (*simplejson.Json, error) {
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body, err := r.getBodyForUnmarshal()
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if err != nil {
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return nil, err
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}
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data, err := simplejson.NewJson(body)
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if err != nil {
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return nil, fmt.Errorf("error reading json: %v", err)
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}
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return data, nil
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}
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// getBodyForUnmarshal returns the body if there wasn't an error and the status
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// code was 200.
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func (r *result) getBodyForUnmarshal() ([]byte, error) {
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if r.Error() != nil {
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return nil, r.Error()
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}
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// Only unmarshal body if the response was successful
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if r.StatusCode() != http.StatusOK {
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return nil, fmt.Errorf("unexpected status \"%d\": %s", r.StatusCode(), r.Body())
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}
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return r.Body(), nil
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}
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