Class: Peatio::Dash::Blockchain

Inherits:
Blockchain::Abstract
  • Object
show all
Defined in:
lib/peatio/dash/blockchain.rb

Overview

TODO: Processing of unconfirmed transactions from mempool isn’t supported now.

Constant Summary collapse

DEFAULT_FEATURES = 
{case_sensitive: true, cash_addr_format: false}.freeze

Instance Method Summary collapse

Constructor Details

#initialize(custom_features = {}) ⇒ Blockchain

Returns a new instance of Blockchain.



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# File 'lib/peatio/dash/blockchain.rb', line 9

def initialize(custom_features={})
  @features = DEFAULT_FEATURES.merge(custom_features).slice(*SUPPORTED_FEATURES)
  @settings = {}
end

Instance Method Details

#configure(settings = {}) ⇒ Object 



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# File 'lib/peatio/dash/blockchain.rb', line 14

def configure(settings={})
  # Clean client state during configure.
  @client = nil
  @settings.merge!(settings.slice(*SUPPORTED_SETTINGS))
end

#fetch_block!(block_number) ⇒ Object 



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# File 'lib/peatio/dash/blockchain.rb', line 20

def fetch_block!(block_number)
  block_hash = client.json_rpc(:getblockhash, [block_number])

  block_txs = client.json_rpc(:getblock, [block_hash, 2])
                    .fetch("tx").each_with_object([]) do |tx, txs_array|
    txs = build_transaction(tx).map do |ntx|
      Peatio::Transaction.new(ntx.merge(block_number: block_number))
    end
    txs_array.append(*txs)
  end

  Peatio::Block.new(block_number, block_txs)
rescue Client::Error => e
  raise Peatio::Blockchain::ClientError, e
end

#latest_block_number ⇒ Object 



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# File 'lib/peatio/dash/blockchain.rb', line 36

def latest_block_number
  client.json_rpc(:getblockcount)
rescue Client::Error => e
  raise Peatio::Blockchain::ClientError, e
end

#load_balance_of_address!(address, _currency_id) ⇒ Object 



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# File 'lib/peatio/dash/blockchain.rb', line 42

def load_balance_of_address!(address, _currency_id)
  address_with_balance = client.json_rpc(:listaddressgroupings)
                               .flatten(1)
                               .find {|addr| addr[0] == address }

  raise Peatio::Blockchain::UnavailableAddressBalanceError, address if address_with_balance.blank?

  address_with_balance[1].to_d
rescue Client::Error => e
  raise Peatio::Blockchain::ClientError, e
end

#transaction_sources(transaction) ⇒ Object 



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# File 'lib/peatio/dash/blockchain.rb', line 54

def transaction_sources(transaction)
  transaction_hash = client.json_rpc(:getrawtransaction, [transaction.hash, 1])
  transaction_hash['vin'].each_with_object([]) do |vin, source_addresses|
    next if vin['txid'].blank?

    vin_transaction = client.json_rpc(:getrawtransaction, [vin['txid'], 1])
    source = vin_transaction['vout'].find { |hash| hash['n'] == vin['vout'] }
    source_addresses << source['scriptPubKey']['addresses'][0]
  end.compact.uniq
end