NewHttpClient will create a new HttpClient instance.

NewHttpClientWithTransport will create a new HttpClient with specified transport.

NewHttpRequest will create a http request.

NewHttpResponse will create a new response of http request.

NewStatusError will create a new status error.

DefaultHeaders defined default http headers.

DefaultTimeout is the default timeout of each request.

HttpClient used to send a real request via http to server.

HttpRequest is the internal http request of sdk, don't use it at your code.

HttpResponse is a simple wrapper of "net/http" response.

StatusError is the error for http status code >= 400.

Client is the interface of http client.