class Tapyrus::Rpc::TapyrusCoreClient

Client implementation for RPC to Bitcoin Core.

Usage

config = {schema: 'http', host: 'localhost', port: 12377, user: 'xxx', password: 'yyy'} client = Tapyrus::Rpc::TapyrusCoreClient.new(config)

You can execute the CLI command supported by Tapyrus Core as follows:

client.listunspent client.getblockchaininfo

Attributes

config[R]

Public Class Methods

new(config) click to toggle source

@param [Hash] config a configuration required to connect to Bitcoin Core.

# File lib/tapyrus/rpc/tapyrus_core_client.rb, line 22
def initialize(config)
  @config = config

  commands = request(:help).split("\n").inject([]) do |memo_ary, line|
    if !line.empty? && !line.start_with?('==')
      memo_ary << line.split(' ').first.to_sym
    end
    memo_ary
  end
  TapyrusCoreClient.class_eval do
    commands.each do |command|
      define_method(command) do |*params|
        request(command, *params)
      end
    end
  end
end

Private Instance Methods

post(url, timeout, open_timeout, payload, headers={}, &block) click to toggle source
# File lib/tapyrus/rpc/tapyrus_core_client.rb, line 64
def post(url, timeout, open_timeout, payload, headers={}, &block)
  RestClient::Request.execute(method: :post, url: url, timeout: timeout,
                              open_timeout: open_timeout, payload: payload, headers: headers, &block)
end
request(command, *params) click to toggle source
# File lib/tapyrus/rpc/tapyrus_core_client.rb, line 50
def request(command, *params)
  data = {
      :method => command,
      :params => params,
      :id => 'jsonrpc'
  }
  post(server_url, @config[:timeout], @config[:open_timeout], data.to_json, content_type: :json) do |respdata, request, result|
    raise result.message if !result.kind_of?(Net::HTTPSuccess) && respdata.empty?
    response = JSON.parse(respdata.gsub(/\\u([\da-fA-F]{4})/) { [$1].pack('H*').unpack('n*').pack('U*').encode('ISO-8859-1').force_encoding('UTF-8') })
    raise response['error'] if response['error']
    response['result']
  end
end
server_url() click to toggle source
# File lib/tapyrus/rpc/tapyrus_core_client.rb, line 42
def server_url
  url = "#{config[:schema]}://#{config[:user]}:#{config[:password]}@#{config[:host]}:#{config[:port]}"
  if !config[:wallet].nil? && !config[:wallet].empty?
    url += "/wallet/#{config[:wallet]}"
  end
  url
end