35 lines
1017 B
JavaScript
35 lines
1017 B
JavaScript
'use strict'
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// ----------------------------------------------------------------------------
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const log = require ('ololog')
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, ansi = require ('ansicolor').nice
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, chai = require ('chai')
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, expect = chai.expect
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, assert = chai.assert
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/* ------------------------------------------------------------------------ */
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module.exports = async (exchange, symbol) => {
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if (exchange.has.fetchOHLCV) {
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// log (symbol.green, 'fetching OHLCV...')
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let ohlcvs = await exchange.fetchOHLCV (symbol)
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log (symbol.green, 'fetched', Object.keys (ohlcvs).length.toString ().green, 'OHLCVs')
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// let now = Date.now ()
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for (let i = 1; i < ohlcvs.length; i++) {
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// testOHLCV (exchange, ohlcvs[i], symbol, now)
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assert (ohlcvs[i][0] >= ohlcvs[i - 1][0], 'OHLCV timestamps out of order: ' + ohlcvs[i][0] + ' < ' + ohlcvs[i - 1][0])
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}
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return ohlcvs
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} else {
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log ('fetching OHLCV not supported')
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}
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} |