@aeternity/aepp-sdk
Version:
SDK for the æternity blockchain
125 lines (54 loc) • 2.17 kB
Markdown
```js
#!/usr/bin/env node
```
# Simple AE Token Spending Script
This script shows how to use the `Wallet` module from the SDK to send AE to
other addresses.
```js
/*
* ISC License (ISC)
* Copyright (c) 2018 aeternity developers
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
* REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
* AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
* INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
* LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
* OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
* PERFORMANCE OF THIS SOFTWARE.
*/
'use strict'
```
We'll need the main client module `Ae` in the `Universal` flavor from the SDK.
```js
const { Universal: Ae } = require('@aeternity/aepp-sdk')
const program = require('commander')
function spend (receiver, amount, { host, debug }) {
```
This code is relatively simple: We create the Ae client asynchronously and
invoke the spend method on it. Passing in `process` from nodejs will make
the implementation grab the key pair from the `WALLET_PRIV` and
`WALLET_PUB` environment variables, respectively.
```js
Ae({ url: host, debug, process })
.then(ae => ae.spend(parseInt(amount), receiver))
.then(tx => console.log('Transaction mined', tx))
.catch(e => console.log(e.message))
}
```
## Command Line Interface
The `commander` library provides maximum command line parsing convenience.
```js
program.version('0.1.0')
program
.command('spend <receiver> <amount>')
.option('-H, --host [hostname]', 'Node to connect to', 'http://localhost:3013')
.option('--debug', 'Switch on debugging')
.action(spend)
program.parse(process.argv)
if (program.args.length === 0) program.help()
```