Binance REST API - signed request in Ruby

binance.rb

require 'net/http'
require 'openssl'

# https://github.com/binance-exchange/binance-official-api-docs/blob/master/rest-api.md#general-api-information
# example curl request:
# `curl -H "X-MBX-APIKEY: #{api_key}" -X GET "https://api.binance.com/api/v3/account?recvWindow=100000&timestamp=#{current_time}&signature=#{signature}"`

api_key       = '<replace this with your api_key generated on binance>'
secret_key    = '<replace this with your secret_key generated on binance>'

request_uri   = 'https://api.binance.com/api/v3/account'
current_time  = Time.now.to_i * 1000
query_string  = "recvWindow=5000&timestamp=#{current_time}"
signature     = OpenSSL::HMAC.hexdigest(OpenSSL::Digest.new('sha256'), secret_key, query_string)
params        = { recvWindow: 5000, timestamp: current_time, signature: signature }
uri           = URI.parse request_uri
uri.query     = URI.encode_www_form params
http          = Net::HTTP.new(uri.host, uri.port)
http.use_ssl  = true
request       = Net::HTTP::Get.new uri
reqquest.add_field('X-MBX-APIKEY', api_key)
response     = http.request(request)