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Learning-Bitcoin-from-the-C.../3_3__Interlude_Sending_Coins_The_Easy_Way.md
Shannon Appelcline 02654d0691 Update 3_3__Interlude_Sending_Coins_The_Easy_Way.md
2017-03-03 16:13:03 -08:00

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Interlude: Sending Coins the Easy Way

NOTE: This is a draft in progress, so that I can get some feedback from early reviewers. It is not yet ready for learning.

You're now ready to send some coins, and that's actually quite simple via the command line. You just type bitcoin-cli sendtoaddress [address] [amount]. So, to send a little coinage to the address msoix3SHNr6eRDUJsRSqQwZRhxZnLXhNef just requires:

$ bitcoin-cli sendtoaddress msoix3SHNr6eRDUJsRSqQwZRhxZnLXhNef 0.1
6ad295c280798e9746dcdf7e5a60dfb6219d93bf31aab9b540ce892537c41e0c

Make sure the address you write in is where you want the money to go. Make double sure. If you make mistakes in Bitcoin, there's no going back.

You'll receive a txid back when you issue this command.

WARNING: As noted previously, the bitcoin-cli command generates JSON-RPC commands to talk to the bitcoind. They can be really picky. This is an example: if you list the bitcoin amount without the leading zero (i.e. ".1" instead of "0.1"), then bitcoin-cli will fail with a mysterious message.

You'll be able to see the transaction in your list immediately.

$ bitcoin-cli listtransactions
[
  {
    "account": "",
    "address": "n4cqjJE6fqcmeWpftygwPoKMMDva6BpyHf",
    "category": "receive",
    "amount": 0.47000000,
    "label": "",
    "vout": 0,
    "confirmations": 15,
    "blockhash": "00000000fa4fdd22a2c33c6200b68239939ad65af3f1a48ecea25f8200f5d66b",
    "blockindex": 45,
    "blocktime": 1488307692,
    "txid": "88e5d5f3077517d76f5a61491fa52e6aaae078c52bc62d849f09507ef0cfada2",
    "walletconflicts": [
    ],
    "time": 1488307692,
    "timereceived": 1488307696,
    "bip125-replaceable": "no"
  }, 
 
  {
    "account": "",
    "address": "msoix3SHNr6eRDUJsRSqQwZRhxZnLXhNef",
    "category": "send",
    "amount": -0.10000000,
    "label": "",
    "vout": 0,
    "fee": -0.00004520,
    "confirmations": 0,
    "trusted": false,
    "txid": "6ad295c280798e9746dcdf7e5a60dfb6219d93bf31aab9b540ce892537c41e0c",
    "walletconflicts": [
    ],
    "time": 1488321652,
    "timereceived": 1488321652,
    "bip125-replaceable": "unknown",
    "abandoned": false
  }
]

However, note that as always it'll take a while for your balances to settle. Be aware that the default transaction fee for sendtoaddress is quite low and should probably be increased, as we note in later sections. This means that your transaction might not placed into the first several blocks, until it's reached enough priority. This is usually fine, if you're sending money to someone. It's less fine if you're working through a tutorial, wanting to get to the next step.

Using the sendtoaddress command isn't necessarily that interesting, if you're planning to write your own raw transactions. However, it's a great test so that you can successfully see a transaction leave your machine, taking some of your money with it.