How to set a custom user agent in ruby

Question

I've a task to test different user agents on a URL through automation. I'm using ruby to code, and I've been trying to set an user agent using the following method, but it doesn't seem to recognize the user agent.

@http = Net::HTTP.new(URL)
response = @http.request_get(URL, {'User-Agent' => useragent})  

Is there any other way to do this, or what am I doing wrong?

Answer 1

Also another that work for me :

require 'open-uri'
html = open('http://your.site.com/the/page.html', 'User-Agent' => 'Ruby').read
puts html

Hope this will help you.

Answer 2

The included Net::HTTPHeader has the initialize_http_header method:

@http = Net::HTTP.new(URL)
@http.initialize_http_header({'User-Agent' => useragent})
response = @http.request_get(URL)  

HTH

Answer 3

I wasn't able to find a solution that works for both https and supplying a header. Here is a version that works:

require "net/http"

uri = URI("https://pokemongolive.com/events/community-day/")

request = Net::HTTP::Get.new(uri)
request["User-Agent"] = "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/87.0.4280.88 Safari/537.36"

response = Net::HTTP.start(uri.hostname, uri.port, :use_ssl => (uri.scheme == 'https')) {|http|
  http.request(request)
}

puts response.code
puts response.body

The Ruby version being used was: ruby 2.6.3p62 (2019-04-16 revision 67580)