Ruby Bybit API Example

bybit.rb

# https://bybit-exchange.github.io/docs/inverse/
# https://github.com/bybit-exchange/api-connectors/blob/master/encryption_example/Encryption.rb

require 'open-uri'
require 'openssl'
require 'json'
require 'bigdecimal'
require 'bigdecimal/util'

API_ENDPOINT = 'https://api.bybit.com'

API_KEY = ''
API_SECRET = ''

def request(path, **params)
  params.merge! api_key: API_KEY, timestamp: Time.now.to_i * 1000
  params.merge! sign: get_signature(URI.encode_www_form(params.sort), API_SECRET)

  uri = URI(API_ENDPOINT + path)
  uri.query = URI.encode_www_form(params)

  JSON.parse uri.read
end

def get_signature(param_str, secret)
  OpenSSL::HMAC.hexdigest('sha256', secret, param_str)
end

json = request('/v2/private/wallet/balance', coin: 'BTC')
wallet_balance_str = json['result']['BTC']['wallet_balance'].to_d.to_s('F')

puts "wallet balance: #{ wallet_balance_str } BTC"