How to trace client speed download while downloading static file

[ikr4-m]

Hello, right now I want to create some route that can downloading file from local using echo.Context.File that can exposing file as static file. Here's my code right now:

e.GET("/receive", func(c echo.Context) (err error) {
    // middleware before exposing file
    err = c.File(file)
    return err
})

How can I trace speed download while client downloading static file from exposed file like above?

For more information, this route only can be access on one client.

[aldas]

What do you mean by trace exactly? Logger and RequestLogger middleware can log elapsed (latency) for requests. Here are some examples for logging https://echo.labstack.com/docs/middleware/logger#examples

[ikr4-m]

Ah yes, I want to get elapsed for request. I'll try this and inform it if it's work.