sfccxt/js/pro/test/Exchange/test.watchTrades.js

A JavaScript / Python / PHP cryptocurrency trading library with support for 130+ exchanges

'use strict'

// ----------------------------------------------------------------------------

const log = require ('ololog')
    , assert = require ('assert')
    , testTrade = require ('../../../test/Exchange/test.trade.js')
    , errors = require ('../../../base/errors.js')

/*  ------------------------------------------------------------------------ */

module.exports = async (exchange, symbol) => {

    // log (symbol.green, 'watching trades...')

    const method = 'watchTrades'

    // we have to skip some exchanges here due to the frequency of trading
    const skippedExchanges = [
        'binanceje',
        'bitvavo',
        'currencycom',
        'dsx',
        'idex2', // rinkeby testnet, trades too rare
        'luno', // requires authentication for public trades
        'ripio',
        'zipmex',
        'coinflex', // to illiquid
        'woo'
    ]

    if (skippedExchanges.includes (exchange.id)) {
        log (exchange.id, method + '() test skipped')
        return
    }

    if (!exchange.has[method]) {
        log (exchange.id, 'does not support', method + '() method')
        return
    }

    let response = undefined

    let now = Date.now ()
    const ends = now + 10000

    while (now < ends) {

        try {

            response = await exchange[method] (symbol)

            now = Date.now ()

            assert (response instanceof Array)

            log (exchange.iso8601 (now), exchange.id, symbol, method, Object.values (response).length, 'trades')

            // log.noLocate (asTable (response))

            for (let i = 0; i < response.length; i++) {
                testTrade (exchange, response[i], symbol, now)
            }
        } catch (e) {

            if (!(e instanceof errors.NetworkError)) {
                throw e
            }

            now = Date.now ()
        }
    }

    return response
}