af6924a27c
This commit adds a '/metrics' endpoint in the API that can be exploited by Prometheus. This endpoint returns: - the number of connected sockets - the number of users per room - common NodeJS and system metrics WARNING: this endpoint is public right now and should be protected
21 lines
768 B
TypeScript
21 lines
768 B
TypeScript
import {Application, Request, Response} from "express";
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import {IoSocketController} from "_Controller/IoSocketController";
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const register = require('prom-client').register;
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const collectDefaultMetrics = require('prom-client').collectDefaultMetrics;
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export class PrometheusController {
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constructor(private App: Application, private ioSocketController: IoSocketController) {
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collectDefaultMetrics({
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timeout: 10000,
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gcDurationBuckets: [0.001, 0.01, 0.1, 1, 2, 5], // These are the default buckets.
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});
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this.App.get("/metrics", this.metrics.bind(this));
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}
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private metrics(req: Request, res: Response): void {
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res.set('Content-Type', register.contentType);
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res.end(register.metrics());
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}
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}
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