Export general metrics via the /metrics endpoint

package-lock.json

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+      "integrity": "sha1-Epai1Y/UXxmg9s4B1lcB4sc1tus="
-      "optional": true
     },
     "json5": {
       "version": "1.0.1",
@@ -1909,7 +2011,6 @@
       "version": "1.4.1",
       "resolved": "https://registry.npmjs.org/jsprim/-/jsprim-1.4.1.tgz",
       "integrity": "sha1-MT5mvB5cwG5Di8G3SZwuXFastqI=",
-      "optional": true,
       "requires": {
         "assert-plus": "1.0.0",
         "extsprintf": "1.3.0",
@@ -2004,6 +2105,11 @@
       "integrity": "sha1-soqmKIorn8ZRA1x3EfZathkDMaY=",
       "dev": true
     },
+    "lodash.get": {
+      "version": "4.4.2",
+      "resolved": "https://registry.npmjs.org/lodash.get/-/lodash.get-4.4.2.tgz",
+      "integrity": "sha1-LRd/ZS+jHpObRDjVNBSZ36OCXpk="
+    },
     "lodash.includes": {
       "version": "4.3.0",
       "resolved": "https://registry.npmjs.org/lodash.includes/-/lodash.includes-4.3.0.tgz",
@@ -2384,7 +2490,6 @@
       "version": "3.8.0",
       "resolved": "https://registry.npmjs.org/node-gyp/-/node-gyp-3.8.0.tgz",
       "integrity": "sha512-3g8lYefrRRzvGeSowdJKAKyks8oUpLEd/DyPV4eMhVlhJ0aNaZqIrNUIPuEWWTAoPqyFkfGrM67MC69baqn6vA==",
-      "optional": true,
       "requires": {
         "fstream": "^1.0.0",
         "glob": "^7.0.3",
@@ -2404,7 +2509,6 @@
           "version": "0.5.5",
           "resolved": "https://registry.npmjs.org/mkdirp/-/mkdirp-0.5.5.tgz",
           "integrity": "sha512-NKmAlESf6jMGym1++R0Ra7wvhV+wFW63FaSOFPwRahvea0gMUcGUhVeAg/0BC0wiv9ih5NYPB1Wn1UEI1/L+xQ==",
-          "optional": true,
           "requires": {
             "minimist": "^1.2.5"
           }
@@ -2412,14 +2516,12 @@
         "semver": {
           "version": "5.3.0",
           "resolved": "https://registry.npmjs.org/semver/-/semver-5.3.0.tgz",
-          "integrity": "sha1-myzl094C0XxgEq0yaqa00M9U+U8=",
+          "integrity": "sha1-myzl094C0XxgEq0yaqa00M9U+U8="
-          "optional": true
         },
         "tar": {
           "version": "2.2.2",
           "resolved": "https://registry.npmjs.org/tar/-/tar-2.2.2.tgz",
           "integrity": "sha512-FCEhQ/4rE1zYv9rYXJw/msRqsnmlje5jHP6huWeBZ704jUTy02c5AZyWujpMR1ax6mVw9NyJMfuK2CMDWVIfgA==",
-          "optional": true,
           "requires": {
             "block-stream": "*",
             "fstream": "^1.0.12",
@@ -2512,7 +2614,6 @@
       "version": "3.0.6",
       "resolved": "https://registry.npmjs.org/nopt/-/nopt-3.0.6.tgz",
       "integrity": "sha1-xkZdvwirzU2zWTF/eaxopkayj/k=",
-      "optional": true,
       "requires": {
         "abbrev": "1"
       }
@@ -2565,8 +2666,7 @@
     "oauth-sign": {
       "version": "0.9.0",
       "resolved": "https://registry.npmjs.org/oauth-sign/-/oauth-sign-0.9.0.tgz",
-      "integrity": "sha512-fexhUFFPTGV8ybAtSIGbV6gOkSv8UtRbDBnAyLQw4QPKkgNlsH2ByPGtMUqdWkos6YCRmAqViwgZrJc/mRDzZQ==",
+      "integrity": "sha512-fexhUFFPTGV8ybAtSIGbV6gOkSv8UtRbDBnAyLQw4QPKkgNlsH2ByPGtMUqdWkos6YCRmAqViwgZrJc/mRDzZQ=="
-      "optional": true
     },
     "object-assign": {
       "version": "4.1.1",
@@ -2743,8 +2843,7 @@
     "performance-now": {
       "version": "2.1.0",
       "resolved": "https://registry.npmjs.org/performance-now/-/performance-now-2.1.0.tgz",
-      "integrity": "sha1-Ywn04OX6kT7BxpMHrjZLSzd8nns=",
+      "integrity": "sha1-Ywn04OX6kT7BxpMHrjZLSzd8nns="
-      "optional": true
     },
     "pg-connection-string": {
       "version": "2.4.0",
@@ -2757,6 +2856,11 @@
       "integrity": "sha512-lY1Q/PiJGC2zOv/z391WOTD+Z02bCgsFfvxoXXf6h7kv9o+WmsmzYqrAwY63sNgOxE4xEdq0WyUnXfKeBrSvYw==",
       "dev": true
     },
+    "pkginfo": {
+      "version": "0.4.1",
+      "resolved": "https://registry.npmjs.org/pkginfo/-/pkginfo-0.4.1.tgz",
+      "integrity": "sha1-tUGO8EOd5UJfxJlQQtztFPsqhP8="
+    },
     "posix-character-classes": {
       "version": "0.1.1",
       "resolved": "https://registry.npmjs.org/posix-character-classes/-/posix-character-classes-0.1.1.tgz",
@@ -2845,6 +2949,37 @@
       "resolved": "https://registry.npmjs.org/process-nextick-args/-/process-nextick-args-2.0.1.tgz",
       "integrity": "sha512-3ouUOpQhtgrbOa17J7+uxOTpITYWaGP7/AhoR3+A+/1e9skrzelGi/dXzEYyvbxubEF6Wn2ypscTKiKJFFn1ag=="
     },
+    "prom-client": {
+      "version": "13.1.0",
+      "resolved": "https://registry.npmjs.org/prom-client/-/prom-client-13.1.0.tgz",
+      "integrity": "sha512-jT9VccZCWrJWXdyEtQddCDszYsiuWj5T0ekrPszi/WEegj3IZy6Mm09iOOVM86A4IKMWq8hZkT2dD9MaSe+sng==",
+      "requires": {
+        "tdigest": "^0.1.1"
+      }
+    },
+    "prometheus-api-metrics": {
+      "version": "3.2.0",
+      "resolved": "https://registry.npmjs.org/prometheus-api-metrics/-/prometheus-api-metrics-3.2.0.tgz",
+      "integrity": "sha512-JekPhtIBLGX8HxD2EndvBsLU6ZQ1JVVqyHWVfm5CposUOqgBHXnUVFW6x5Ux2gykpdej/5LLM3dU9V8Ma7GfkA==",
+      "requires": {
+        "@types/express": "^4.17.8",
+        "@types/express-serve-static-core": "^4.17.12",
+        "@types/koa": "^2.11.4",
+        "debug": "^3.2.6",
+        "lodash.get": "^4.4.2",
+        "pkginfo": "^0.4.1"
+      },
+      "dependencies": {
+        "debug": {
+          "version": "3.2.7",
+          "resolved": "https://registry.npmjs.org/debug/-/debug-3.2.7.tgz",
+          "integrity": "sha512-CFjzYYAi4ThfiQvizrFQevTTXHtnCqWfe7x1AhgEscTz6ZbLbfoLRLPugTQyBth6f8ZERVUSyWHFD/7Wu4t1XQ==",
+          "requires": {
+            "ms": "^2.1.1"
+          }
+        }
+      }
+    },
     "proxy-addr": {
       "version": "2.0.7",
       "resolved": "https://registry.npmjs.org/proxy-addr/-/proxy-addr-2.0.7.tgz",
@@ -2857,14 +2992,12 @@
     "psl": {
       "version": "1.8.0",
       "resolved": "https://registry.npmjs.org/psl/-/psl-1.8.0.tgz",
-      "integrity": "sha512-RIdOzyoavK+hA18OGGWDqUTsCLhtA7IcZ/6NCs4fFJaHBDab+pDDmDIByWFRQJq2Cd7r1OoQxBGKOaztq+hjIQ==",
+      "integrity": "sha512-RIdOzyoavK+hA18OGGWDqUTsCLhtA7IcZ/6NCs4fFJaHBDab+pDDmDIByWFRQJq2Cd7r1OoQxBGKOaztq+hjIQ=="
-      "optional": true
     },
     "punycode": {
       "version": "2.1.1",
       "resolved": "https://registry.npmjs.org/punycode/-/punycode-2.1.1.tgz",
-      "integrity": "sha512-XRsRjdf+j5ml+y/6GKHPZbrF/8p2Yga0JPtdqTIY2Xe5ohJPD9saDJJLPvp9+NSBprVvevdXZybnj2cv8OEd0A==",
+      "integrity": "sha512-XRsRjdf+j5ml+y/6GKHPZbrF/8p2Yga0JPtdqTIY2Xe5ohJPD9saDJJLPvp9+NSBprVvevdXZybnj2cv8OEd0A=="
-      "optional": true
     },
     "qs": {
       "version": "6.7.0",
@@ -2979,7 +3112,6 @@
       "version": "2.88.2",
       "resolved": "https://registry.npmjs.org/request/-/request-2.88.2.tgz",
       "integrity": "sha512-MsvtOrfG9ZcrOwAW+Qi+F6HbD0CWXEh9ou77uOb7FM2WPhwT7smM833PzanhJLsgXjN89Ir6V2PczXNnMpwKhw==",
-      "optional": true,
       "requires": {
         "aws-sign2": "~0.7.0",
         "aws4": "^1.8.0",
@@ -3007,7 +3139,6 @@
           "version": "2.3.3",
           "resolved": "https://registry.npmjs.org/form-data/-/form-data-2.3.3.tgz",
           "integrity": "sha512-1lLKB2Mu3aGP1Q/2eCOx0fNbRMe7XdwktwOruhfqqd0rIJWwN4Dh+E3hrPSlDCXnSR7UtZ1N38rVXm+6+MEhJQ==",
-          "optional": true,
           "requires": {
             "asynckit": "^0.4.0",
             "combined-stream": "^1.0.6",
@@ -3017,8 +3148,7 @@
         "qs": {
           "version": "6.5.2",
           "resolved": "https://registry.npmjs.org/qs/-/qs-6.5.2.tgz",
-          "integrity": "sha512-N5ZAX4/LxJmF+7wN74pUD6qAh9/wnvdQcjq9TZjevvXzSUo7bfmw91saqMjzGS2xq91/odN2dW/WOl7qQHNDGA==",
+          "integrity": "sha512-N5ZAX4/LxJmF+7wN74pUD6qAh9/wnvdQcjq9TZjevvXzSUo7bfmw91saqMjzGS2xq91/odN2dW/WOl7qQHNDGA=="
-          "optional": true
         }
       }
     },
@@ -3414,7 +3544,6 @@
       "version": "1.16.1",
       "resolved": "https://registry.npmjs.org/sshpk/-/sshpk-1.16.1.tgz",
       "integrity": "sha512-HXXqVUq7+pcKeLqqZj6mHFUMvXtOJt1uoUx09pFW6011inTMxqI8BA8PM95myrIyyKwdnzjdFjLiE6KBPVtJIg==",
-      "optional": true,
       "requires": {
         "asn1": "~0.2.3",
         "assert-plus": "^1.0.0",
@@ -3529,6 +3658,14 @@
       "resolved": "https://registry.npmjs.org/tcp-ping/-/tcp-ping-0.1.1.tgz",
       "integrity": "sha1-At1/QrW/fXy3jVt6rO+hVf2PfAw="
     },
+    "tdigest": {
+      "version": "0.1.1",
+      "resolved": "https://registry.npmjs.org/tdigest/-/tdigest-0.1.1.tgz",
+      "integrity": "sha1-Ljyyw56kSeVdHmzZEReszKRYgCE=",
+      "requires": {
+        "bintrees": "1.0.1"
+      }
+    },
     "tildify": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/tildify/-/tildify-2.0.0.tgz",
@@ -3586,7 +3723,6 @@
       "version": "2.5.0",
       "resolved": "https://registry.npmjs.org/tough-cookie/-/tough-cookie-2.5.0.tgz",
       "integrity": "sha512-nlLsUzgm1kfLXSXfRZMc1KLAugd4hqJHDTvc2hDIwS3mZAfMEuMbc03SujMF+GEcpaX/qboeycw6iO8JwVv2+g==",
-      "optional": true,
       "requires": {
         "psl": "^1.1.28",
         "punycode": "^2.1.1"
@@ -3596,7 +3732,6 @@
       "version": "0.6.0",
       "resolved": "https://registry.npmjs.org/tunnel-agent/-/tunnel-agent-0.6.0.tgz",
       "integrity": "sha1-J6XeoGs2sEoKmWZ3SykIaPD8QP0=",
-      "optional": true,
       "requires": {
         "safe-buffer": "^5.0.1"
       }
@@ -3604,8 +3739,7 @@
     "tweetnacl": {
       "version": "0.14.5",
       "resolved": "https://registry.npmjs.org/tweetnacl/-/tweetnacl-0.14.5.tgz",
-      "integrity": "sha1-WuaBd/GS1EViadEIr6k/+HQ/T2Q=",
+      "integrity": "sha1-WuaBd/GS1EViadEIr6k/+HQ/T2Q="
-      "optional": true
     },
     "type-is": {
       "version": "1.6.18",
@@ -3677,7 +3811,6 @@
       "version": "4.4.1",
       "resolved": "https://registry.npmjs.org/uri-js/-/uri-js-4.4.1.tgz",
       "integrity": "sha512-7rKUyy33Q1yc98pQ1DAmLtwX109F7TIfWlW1Ydo8Wl1ii1SeHieeh0HHfPeL2fMXK6z0s8ecKs9frCuLJvndBg==",
-      "optional": true,
       "requires": {
         "punycode": "^2.1.0"
       }
@@ -3705,8 +3838,7 @@
     "uuid": {
       "version": "3.4.0",
       "resolved": "https://registry.npmjs.org/uuid/-/uuid-3.4.0.tgz",
-      "integrity": "sha512-HjSDRw6gZE5JMggctHBcjVak08+KEVhSIiDzFnT9S9aegmp85S/bReBVTb4QTFaRNptJ9kuYaNhnbNEOkbKb/A==",
+      "integrity": "sha512-HjSDRw6gZE5JMggctHBcjVak08+KEVhSIiDzFnT9S9aegmp85S/bReBVTb4QTFaRNptJ9kuYaNhnbNEOkbKb/A=="
-      "optional": true
     },
     "v-pagination-3": {
       "version": "0.1.6",
@@ -3735,7 +3867,6 @@
       "version": "1.10.0",
       "resolved": "https://registry.npmjs.org/verror/-/verror-1.10.0.tgz",
       "integrity": "sha1-OhBcoXBTr1XW4nDB+CiGguGNpAA=",
-      "optional": true,
       "requires": {
         "assert-plus": "^1.0.0",
         "core-util-is": "1.0.2",

package.json

@@ -36,6 +36,7 @@
         "nodemailer": "^6.6.3",
         "password-hash": "^1.2.2",
         "prom-client": "^13.1.0",
+        "prometheus-api-metrics": "^3.2.0",
         "redbean-node": "0.0.20",
         "socket.io": "^4.1.3",
         "socket.io-client": "^4.1.3",

server/server.js

@@ -15,8 +15,7 @@ const gracefulShutdown = require('http-graceful-shutdown');
 const Database = require("./database");
 const {sleep} = require("./util");
 const args = require('args-parser')(process.argv);
-const prom_client = require('prom-client')
+const apiMetrics = require('prometheus-api-metrics');
-
 const version = require('../package.json').version;
 const hostname = args.host || "0.0.0.0"
 const port = args.port || 3001
@@ -33,11 +32,6 @@ app.use(express.json())
  * Total WebSocket client connected to server currently, no actual use
  * @type {number}
  */
-console.log("Setting up the Prometheus Client")
-
-const collectDefaultMetrics = prom_client.collectDefaultMetrics;
-collectDefaultMetrics({ prefix: 'uptimekuma' });
-
 let totalClient = 0;
 
 /**
@@ -63,12 +57,8 @@ let needSetup = false;
 
     console.log("Adding route")
     app.use('/', express.static("dist"));
+    app.use(apiMetrics())
 
-    console.log("Adding /metrics")
-     app.get('/metrics', function (req, res) {
-     res.set('Content-Type', prom_client.register.contentType);
-     res.end(prom_client.register.metrics());
-    });
 
     app.get('*', function(request, response, next) {
         response.sendFile(process.cwd() + '/dist/index.html');