golangHow to set user agent for HTTP request

package main

import ("net/http"; "os"; "io")

func main() {
  client := &http.Client{}
  req, _ := http.NewRequest("GET", "https://echoof.me", nil)
  req.Header.Set("User-Agent", "super-go-client")
  r, _ := client.Do(req)
  defer r.Body.Close()
  io.Copy(os.Stdout, r.Body)
}ctrl + cgithub

`package main` default package declaration	`net/http` http package to work with http protocol
`http.Client{}` creates new HTTP client object	`http.NewRequest` creates HTTP request object
`.Header.Set` set custom header (can be executed multiple times)	`User-Agent` header allows to set user agent
`super-go-client` sample value for user agent to set	`.Do(` sends given request
`io.Copy(os.Stdout, r.Body)` output response body to stdout

Usage example

package main

import ("net/http"; "os"; "io")

func main() {
  client := &http.Client{}
  req, _ := http.NewRequest("GET", "https://echoof.me", nil)
  req.Header.Set("User-Agent", "super-go-client")
  r, _ := client.Do(req)
  defer r.Body.Close()
  io.Copy(os.Stdout, r.Body)
}

output

IP:                           135.181.98.214

ACCEPT_ENCODING:              gzip
USER_AGENT:                   super-go-client

https://echoof.me

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golangHow to set user agent for HTTP request

Usage example

output

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