http

Documentation

Index

• Constants
• type ResponseRecorder
  • func NewRecorder() *ResponseRecorder
  • func (rw *ResponseRecorder) Flush()
  • func (rw *ResponseRecorder) Header() http.Header
  • func (rw *ResponseRecorder) Result() *http.Response
  • func (rw *ResponseRecorder) Write(buf []byte) (int, error)
  • func (rw *ResponseRecorder) WriteHeader(code int)
  • func (rw *ResponseRecorder) WriteString(str string) (int, error)
• type ResponseWriter
  • func NewResponseWriter(rw http.ResponseWriter) ResponseWriter

Constants

const DefaultRemoteAddr = "1.2.3.4"

DefaultRemoteAddr is the default remote address to return in RemoteAddr if an explicit DefaultRemoteAddr isn't set on ResponseRecorder.

Types

type ResponseRecorder

type ResponseRecorder struct {
	// Code is the HTTP response code set by WriteHeader.
	//
	// Note that if a Handler never calls WriteHeader or Write,
	// this might end up being 0, rather than the implicit
	// http.StatusOK. To get the implicit value, use the Result
	// method.
	Code int

	// HeaderMap contains the headers explicitly set by the Handler.
	// It is an internal detail.
	//
	// Deprecated: HeaderMap exists for historical compatibility
	// and should not be used. To access the headers returned by a handler,
	// use the Response.Header map as returned by the Result method.
	HeaderMap http.Header

	// Body is the buffer to which the Handler's Write calls are sent.
	// If nil, the Writes are silently discarded.
	Body *bytes.Buffer

	// Flushed is whether the Handler called Flush.
	Flushed bool
	// contains filtered or unexported fields
}

ResponseRecorder is an implementation of http.ResponseWriter that records its mutations for later inspection in tests.

func NewRecorder

func NewRecorder() *ResponseRecorder

NewRecorder returns an initialized ResponseRecorder.

func (*ResponseRecorder) Flush

func (rw *ResponseRecorder) Flush()

Flush implements http.Flusher. To test whether Flush was called, see rw.Flushed.

func (*ResponseRecorder) Header

func (rw *ResponseRecorder) Header() http.Header

Header implements http.ResponseWriter. It returns the response headers to mutate within a handler. To test the headers that were written after a handler completes, use the Result method and see the returned Response value's Header.

func (*ResponseRecorder) Result

func (rw *ResponseRecorder) Result() *http.Response

Result returns the response generated by the handler.

The returned Response will have at least its StatusCode, Header, Body, and optionally Trailer populated. More fields may be populated in the future, so callers should not DeepEqual the result in tests.

The Response.Header is a snapshot of the headers at the time of the first write call, or at the time of this call, if the handler never did a write.

The Response.Body is guaranteed to be non-nil and Body.Read call is guaranteed to not return any error other than io.EOF.

Result must only be called after the handler has finished running.

func (*ResponseRecorder) Write

func (rw *ResponseRecorder) Write(buf []byte) (int, error)

Write implements http.ResponseWriter. The data in buf is written to rw.Body, if not nil.

func (*ResponseRecorder) WriteHeader

func (rw *ResponseRecorder) WriteHeader(code int)

WriteHeader implements http.ResponseWriter.

func (*ResponseRecorder) WriteString

func (rw *ResponseRecorder) WriteString(str string) (int, error)

WriteString implements io.StringWriter. The data in str is written to rw.Body, if not nil.

type ResponseWriter

type ResponseWriter interface {
	http.ResponseWriter
	http.Flusher
	// Status returns the status code of the response or 0 if the response has
	// not been written
	Status() int
	// Written returns whether or not the ResponseWriter has been written.
	Written() bool
	// Size returns the size of the response body.
	Size() int
	// Before allows for a function to be called before the ResponseWriter has been written to. This is
	// useful for setting headers or any other operations that must happen before a response has been written.
	Before(func(ResponseWriter))
}

ResponseWriter is a wrapper around http.ResponseWriter that provides extra information about the response. It is recommended that middleware handlers use this construct to wrap a responsewriter if the functionality calls for it.

func NewResponseWriter

func NewResponseWriter(rw http.ResponseWriter) ResponseWriter

NewResponseWriter creates a ResponseWriter that wraps an http.ResponseWriter