v1.0.0

• Added support for receiving and decoding error JSON structs
• Renamed Sling JsonBody setter to BodyJSON (breaking)
• Renamed Sling BodyStruct setter to BodyForm (breaking)
• Renamed Sling fields httpClient, method, rawURL, and header to be internal (breaking)
• Changed Do and Receive to skip response JSON decoding if "application/json" Content-Type is missing
• Changed Sling.Receive(v interface{}) to Sling.Receive(successV, failureV interface{}) (breaking)
  • Previously Receive attempted to decode the response Body in all cases
  • Updated Receive will decode the response Body into successV for 2XX responses or decode the Body into failureV for other status codes. Pass a nil successV or failureV to skip JSON decoding into that value.
  • To upgrade, pass nil for the failureV argument or consider defining a JSON tagged struct appropriate for the API endpoint. (e.g. s.Receive(&issue, nil), s.Receive(&issue, &githubError))
  • To retain the old behavior, duplicate the first argument (e.g. s.Receive(&tweet, &tweet))
• Changed Sling.Do(http.Request, v interface{}) to Sling.Do(http.Request, successV, failureV interface{}) (breaking)
  • See the changelog entry about Receive, the upgrade path is the same.
• Removed HEAD, GET, POST, PUT, PATCH, DELETE constants, no reason to export them (breaking)