31 lines
757 B
JavaScript
31 lines
757 B
JavaScript
'use strict';
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const fecha = require('fecha');
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const format = require('./format');
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/*
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* function timestamp (info)
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* Returns a new instance of the timestamp Format which adds a timestamp
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* to the info. It was previously available in winston < 3.0.0 as:
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*
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* - { timestamp: true } // `new Date.toISOString()`
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* - { timestamp: function:String } // Value returned by `timestamp()`
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*/
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module.exports = format((info, opts = {}) => {
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if (opts.format) {
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info.timestamp = typeof opts.format === 'function'
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? opts.format()
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: fecha.format(new Date(), opts.format);
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}
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if (!info.timestamp) {
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info.timestamp = new Date().toISOString();
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}
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if (opts.alias) {
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info[opts.alias] = info.timestamp;
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}
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return info;
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});
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