meissa/excalidraw-backend
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Created a Prometheus metrics adapter

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RazvanP 2022-09-15 10:42:27 +03:00 committed by Saúl Ibarra Corretgé
parent b46bf94c21
commit 6582760051
3 changed files with 73 additions and 0 deletions
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66
package-lock.json generated
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@ -37,6 +37,7 @@
"eslint-plugin-jsdoc": "37.0.3", "eslint-plugin-jsdoc": "37.0.3",
"express": "4.17.1", "express": "4.17.1",
"socket.io": "^2.5.0", "socket.io": "^2.5.0",
"socket.io-prometheus-metrics": "^1.0.6",
"ts-node-dev": "^1.1.8", "ts-node-dev": "^1.1.8",
"typescript": "4.2.3" "typescript": "4.2.3"
}, },
@ -2924,6 +2925,11 @@
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@ -5710,6 +5716,17 @@
"node": ">=0.4.0" "node": ">=0.4.0"
} }
}, },
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@ -6197,6 +6214,16 @@
"ms": "^2.1.1" "ms": "^2.1.1"
} }
}, },
"node_modules/socket.io-prometheus-metrics": {
"version": "1.0.6",
"resolved": "https://registry.npmjs.org/socket.io-prometheus-metrics/-/socket.io-prometheus-metrics-1.0.6.tgz",
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@ -6345,6 +6372,14 @@
"node": ">=6" "node": ">=6"
} }
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@ -8964,6 +8999,11 @@
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"proxy-addr": { "proxy-addr": {
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@ -11391,6 +11439,16 @@
} }
} }
}, },
"socket.io-prometheus-metrics": {
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"prom-client": "^11.2.1",
"socket.io": "^2.2.0"
}
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"peer": true "peer": true
}, },
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1
package.json
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@ -41,6 +41,7 @@
"eslint-plugin-jsdoc": "37.0.3", "eslint-plugin-jsdoc": "37.0.3",
"express": "4.17.1", "express": "4.17.1",
"socket.io": "^2.5.0", "socket.io": "^2.5.0",
"socket.io-prometheus-metrics": "^1.0.6",
"ts-node-dev": "^1.1.8", "ts-node-dev": "^1.1.8",
"typescript": "4.2.3" "typescript": "4.2.3"
}, },

6
src/index.ts
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@ -2,6 +2,7 @@ import debug from "debug";
import express from "express"; import express from "express";
import http from "http"; import http from "http";
import socketIO from "socket.io"; import socketIO from "socket.io";
import * as prometheus from "socket.io-prometheus-metrics";
const serverDebug = debug("server"); const serverDebug = debug("server");
const ioDebug = debug("io"); const ioDebug = debug("io");
@ -41,6 +42,11 @@ const io = socketIO(server, {
}, },
}); });
// listens on host:9090/metrics
prometheus.metrics(io, {
collectDefaultMetrics: true
});
io.on("connection", (socket) => { io.on("connection", (socket) => {
ioDebug("connection established!"); ioDebug("connection established!");
io.to(`${socket.id}`).emit("init-room"); io.to(`${socket.id}`).emit("init-room");