Class: X402::PaymentObserver::CoinbaseV2Extractor

Inherits:
Object
  • Object
show all
Defined in:
lib/x402/payment_observer.rb

Overview

Built-in extractor for the Coinbase v2 envelope format. Decodes +Base64(JSON({ payload: { rawtx: "hex" } }))+.

See Also:

Instance Method Summary collapse

Instance Method Details

#call(proof_payload) ⇒ BSV::Transaction::Transaction?

Returns parsed transaction or nil on failure.

Parameters:

  • proof_payload (String) —

    raw proof header value

Returns:

  • (BSV::Transaction::Transaction, nil) —

    parsed transaction or nil on failure



139
140
141
142
143
144
145
146
147
148
149
 
# File 'lib/x402/payment_observer.rb', line 139

def call(proof_payload)
  json = Base64.strict_decode64(proof_payload)
  payload = JSON.parse(json)
  rawtx_hex = payload.dig("payload", "rawtx")
  return unless rawtx_hex

  tx_binary = [rawtx_hex].pack("H*")
  ::BSV::Transaction::Transaction.from_binary(tx_binary)
rescue StandardError
  nil
end