30 lines
757 B
JavaScript
30 lines
757 B
JavaScript
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'use strict';
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const format = require('./format');
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const { MESSAGE } = require('triple-beam');
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const jsonStringify = require('fast-safe-stringify');
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/*
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* function logstash (info)
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* Returns a new instance of the LogStash Format that turns a
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* log `info` object into pure JSON with the appropriate logstash
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* options. This was previously exposed as { logstash: true }
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* to transports in `winston < 3.0.0`.
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*/
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module.exports = format(info => {
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const logstash = {};
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if (info.message) {
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logstash['@message'] = info.message;
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delete info.message;
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}
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if (info.timestamp) {
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logstash['@timestamp'] = info.timestamp;
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delete info.timestamp;
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}
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logstash['@fields'] = info;
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info[MESSAGE] = jsonStringify(logstash);
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return info;
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});
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