#289 explained payload

README.rdoc

@@ -111,52 +111,56 @@ as well as the private key for the address required to sign for it.
 
  # use testnet so you don't accidentally blow your whole money!
  Bitcoin.network = :testnet3
- 
+
  # make the DSL methods available in your scope
  include Bitcoin::Builder
- 
+
  # the previous transaction that has an output to your address
  prev_hash = "6c44b284c20fa22bd69c57a9dbff91fb71deddc8c54fb2f5aa41fc78c96c1ad1"
- 
+
  # the number of the output you want to use
  prev_out_index = 0
- 
+
  # fetch the tx from whereever you like and parse it
  prev_tx = Bitcoin::P::Tx.from_json(open("http://test.webbtc.com/tx/#{prev_hash}.json"))
- 
+
  # the key needed to sign an input that spends the previous output
  key = Bitcoin::Key.from_base58("92ZRu28m2GHSKaaF2W7RswJ2iJYpTzVhBaN6ZLs7TENCs4b7ML8")
- 
+
  # create a new transaction (and sign the inputs)
  new_tx = build_tx do |t|
- 
+
    # add the input you picked out earlier
    t.input do |i|
      i.prev_out prev_tx
      i.prev_out_index prev_out_index
      i.signature_key key
    end
- 
+
    # add an output that sends some bitcoins to another address
    t.output do |o|
      o.value 50000000 # 0.5 BTC in satoshis
      o.script {|s| s.recipient "mugwYJ1sKyr8EDDgXtoh8sdDQuNWKYNf88" }
    end
- 
+
    # add another output spending the remaining amount back to yourself
    # if you want to pay a tx fee, reduce the value of this output accordingly
    # if you want to keep your financial history private, use a different address
    t.output do |o|
      o.value 49000000 # 0.49 BTC, leave 0.01 BTC as fee
      o.script {|s| s.recipient key.addr }
    end
- 
+
  end
- 
+
  # examine your transaction. you can relay it through http://test.webbtc.com/relay_tx
  # that will also give you a hint on the error if something goes wrong
  puts new_tx.to_json
 
+ # You may also relay it through https://www.blockchain.com/btc/pushtx
+ # You will need it in hex format:
+ puts new_tx.to_payload.bth
+
 == Documentation
 
 Always trying to improve, any help appreciated! If anything is unclear to you, let us know!