kroitor / ccxt

examples/js/exchanges.js

"use strict";

const ccxt      = require ('../../ccxt-es5.js')
const countries = require ('../../countries.js')
const asTable   = require ('as-table')
const util      = require ('util')

The constant util seems to be never used. Consider removing it.

const log       = require ('ololog').configure ({ locate: false })

require ('ansicolor').nice;

The result of the property access to require("ansicolor").nice is not used.

process.on ('uncaughtException',  e => { log.bright.red.error (e); process.exit (1) })

Use of process.exit() is discouraged as it will potentially stop the complete node.js application. Consider quitting gracefully instead by throwing an Error.

process.on ('unhandledRejection', e => { log.bright.red.error (e); process.exit (1) })

Use of process.exit() is discouraged as it will potentially stop the complete node.js application. Consider quitting gracefully instead by throwing an Error.

let exchanges = {}

ccxt.exchanges.forEach (id => { exchanges[id] = new (ccxt)[id] () })

log ('The ccxt library supports', (ccxt.exchanges.length.toString ()).green, 'exchanges:')

var countryName = function (code) {
    return ((typeof countries[code] !== 'undefined') ? countries[code] : code)
}

log (asTable.configure ({ delimiter: ' | ' }) (Object.values (exchanges).map (exchange => {
    
    let countries = Array.isArray (exchange.countries) ? 
        exchange.countries.map (countryName).join (', ') : 
        countryName (exchange.countries)

    let website = Array.isArray (exchange.urls.www) ? exchange.urls.www[0] : exchange.urls.www

    return {
        id: exchange.id,
        name: exchange.name,
        url: website,
        countries: countries,
    }
            
})))