Update or Renew Square Access Token Using Ruby

renew_square_access_token.rb

require 'net/http'

def new_access_token(square_application_id, square_secret, square_access_token)
  url = "https://connect.squareup.com/oauth2/clients/#{square_application_id}/access-token/renew"

  headers = {
    'Content-Type': 'application/json',
    'Authorization': "Client #{square_secret}"
  }

  request_body = { 
    access_token: square_access_token 
  }.to_json

  response = make_post_request(url, headers, request_body)
  new_access_token = (JSON.parse(response.body))["access_token"]
end

def make_post_request(url, headers, body)
  uri = URI(url)
  req = Net::HTTP::Post.new(uri.path, headers)
  req.body = body
  http = Net::HTTP.new(uri.host, uri.port)
  http.use_ssl = (uri.scheme == "https")
  response = http.request(req)
end