eosplayer/bin/index.js

eosplayer is the glue layer of eosjs, which is packaged based on eosjs and provides better usability for the application layer. It can be used on browsers already installed scatter or in Dapp wallets.

#!/usr/bin/env node

const debug = require('debug')
debug.enable('error:*')

const Yargs = require('yargs')

const { ReadingPlayer } = require('../build/lib')

const player = new ReadingPlayer({
  urls: [
    'https://eos.greymass.com',
    'https://proxy.eosnode.tools'
  ]
})

const STRIP_COMMENTS = /((\/\/.*$)|(\/\*[\s\S]*?\*\/))/mg
const ARGUMENT_NAMES = /([^\s,]+)/g
function getParamNames (func) {
  const fnStr = func.toString().replace(STRIP_COMMENTS, '')
  let result = fnStr.slice(fnStr.indexOf('(') + 1, fnStr.indexOf(')')).match(ARGUMENT_NAMES)
  if (result === null) { result = [] }
  return result
}

for (const key in player.chain) {
  const fn = player.chain[key]
  if (typeof fn === 'function') {
    const params = getParamNames(fn)
    Yargs.command(
      key + (params.length > 0 ? ' <args>' : ''),
      '[' + params.reduce((prev, cur) => prev + ',' + cur, '').substr(1) + ']'
    )
  }
}

const argv = Yargs
  .help('h')
  .alias('h', 'help')
  .command({
    command: '*',
    handler () {
      Yargs.showHelp()
      process.exit(0)
    }
  }).argv

const methodName = (typeof argv['_'] === 'string') ? argv['_'] : argv['_'][0]
const paramStr = (typeof argv.args === 'object') ? argv.args[0] : argv.args

function go () {
  if (player.chain[methodName]) {
    let lst = JSON.parse(paramStr || '[]')
    console.log('execute', methodName, '(', lst, ')')
    Promise.resolve(player.chain[methodName](...lst)).then(console.log)
  } else {
    console.error(`method ${methodName} are not found`)
  }
}
go()