winston-loki
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A Winston transport for Grafana Loki
246 lines (245 loc) • 7.31 kB
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<title>Code coverage report for winston-loki/src/batcher.js</title>
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<h1>
<a href="../../index.html">All files</a> / <a href="index.html">winston-loki/src</a> batcher.js
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<div class='fl pad1y space-right2'>
<span class="strong">83.33% </span>
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<span class="strong">66.67% </span>
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<span class="strong">80% </span>
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<span class="strong">83.33% </span>
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<span class="cline-any cline-neutral"> </span></td><td class="text"><pre class="prettyprint lang-js">const got = require('got')
module.exports = class Batcher {
constructor (options) {
this.options = options
this.interval = this.options.interval
? Number(this.options.interval) * 1000
: <span class="branch-1 cbranch-no" title="branch not covered" >5000</span>
this.circuitBreakerInterval = 60000
this.batch = {
streams: []
}
}
wait (duration) {
return new Promise(resolve => {
setTimeout(resolve, duration)
})
}
pushLogEntry (logEntry) {
this.batch.streams.push(logEntry)
}
clearBatch () {
this.batch.streams = []
}
sendBatchToLoki () {
return new Promise((resolve, reject) => {
if (this.batch.streams.length === 0) {
resolve()
} else {
got
.post(this.options.host + '/api/prom/push', {
body: JSON.stringify(this.batch),
headers: {
'content-type': 'application/json'
}
})
.then(<span class="fstat-no" title="function not covered" >re</span>s => {
<span class="cstat-no" title="statement not covered" > this.clearBatch()</span>
<span class="cstat-no" title="statement not covered" > resolve()</span>
})
.catch(<span class="fstat-no" title="function not covered" >er</span>r => {
<span class="cstat-no" title="statement not covered" > reject(err)</span>
})
}
})
}
async run () {
while (true) {
try {
await this.sendBatchToLoki()
<span class="missing-if-branch" title="if path not taken" >I</span>if (this.interval === this.circuitBreakerInterval) {
<span class="cstat-no" title="statement not covered" > this.interval = Number(this.options.interval) * 1000</span>
}
} catch (e) {
this.interval = this.circuitBreakerInterval
}
await this.wait(this.interval)
}
}
}
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Code coverage
generated by <a href="https://istanbul.js.org/" target="_blank">istanbul</a> at Wed Jan 09 2019 14:51:34 GMT+0200 (Eastern European Standard Time)
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