The SuccessStatus acted on the response's status code, and was used to return
early, before checking the same status code with HandleErrorResponse.
This patch combines both functions into a HandleHTTPResponseError, which
returns an error for "non-success" status-codes, which simplifies handling
of responses, and makes some logic slightly more idiomatic.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Client attempts to parse the body of every error it receives as JSON
regardless of the content-type. This commit rectifies by only parsing
he error body as JSON if the Content-Type header is set to
either "application/json" or "application/vnd.api+json".
Signed-off-by: Milos Gajdos <milosthegajdos@gmail.com>
If this slice ends up empty after parsing the HTTP response body, it
means the body is not well-formed. We've probably encountered an error
message produced by something that uses a different JSON schema, or
an error that just happens to validate as JSON.
An empty errcode.Errors slice is not a very useful thing to return,
since its Error() output is just `<nil>`. Detect this case, and instend
return an UnexpectedHTTPResponseError.
Signed-off-by: Aaron Lehmann <aaron.lehmann@docker.com>
