Request ID

Request ID middleware generates a unique id for a request.

Usage

e.Use(middleware.RequestID())

Example

    e := echo.New()
    e.Use(middleware.RequestID())
    e.GET("/", func(c echo.Context) error {
        return c.String(http.StatusOK, c.Response().Header().Get(echo.HeaderXRequestID))
    })
    e.Logger.Fatal(e.Start(":1323"))

Custom Configuration

Usage

e.Use(middleware.RequestIDWithConfig(middleware.RequestIDConfig{
  Generator: func() string {
    return customGenerator()
  },
}))

Configuration

RequestIDConfig struct {
    // Skipper defines a function to skip middleware.
    Skipper Skipper
    // Generator defines a function to generate an ID.
    // Optional. Default value random.String(32).
    Generator func() string
    // RequestIDHandler defines a function which is executed for a request id.
    RequestIDHandler func(echo.Context, string)
    // TargetHeader defines what header to look for to populate the id
    TargetHeader string
}

Default Configuration

DefaultRequestIDConfig = RequestIDConfig{
  Skipper:   DefaultSkipper,
  Generator: generator,
  TargetHeader: echo.HeaderXRequestID,
}

Set ID

You can set the id from the requester with the X-Request-ID-Header

Request

curl -H "X-Request-ID: 3" --compressed -v "http://localhost:1323/?my=param"

Log

{"time":"2017-11-13T20:26:28.6438003+01:00","id":"3","remote_ip":"::1","host":"localhost:1323","method":"GET","uri":"/?my=param","my":"param","status":200, "latency":0,"latency_human":"0s","bytes_in":0,"bytes_out":13}