responses

Documentation

Index

• Variables
• func RequestDuration(reg prometheus.Registerer) func(http.Handler) http.Handler
• func ResponseTime(next http.Handler) http.Handler
• func Send(w http.ResponseWriter, code int, data []byte)
• type TimedResponseWriter

Variables

var ResponseTimeHeader = "X-Response-Time"

ResponseTimeHeader is the header name of response time. Change it if you use something different

Functions

func RequestDuration

func RequestDuration(reg prometheus.Registerer) func(http.Handler) http.Handler

RequestDuration adds a middleware to observe request durations and report to prometheus with the fully qualified name http_request_duration_seconds and labels for the status codes, method and the request path. Note that this handler only works if ResponseTime middleware is already Used. Also ensure it's used before any middleware that calls ResponseWriter.Write.

func ResponseTime

func ResponseTime(next http.Handler) http.Handler

ResponseTime adds a "X-Response-Time" header once the handler writes the header of the response. Ensure to Use this middleware before any middleware that Write.

func Send

func Send(w http.ResponseWriter, code int, data []byte)

Send writes a JSON response body and sets the content type of the response

Types

type TimedResponseWriter

type TimedResponseWriter interface {
	http.ResponseWriter
	Code() int
	Duration() time.Duration
}

TimedResponseWriter is a wrapper around the http.ResponseWriter allowing users to track the processing time of an handler.