Update prom-client to version 14

.prettierrc

@@ -0,0 +1,6 @@
+{
+  "tabWidth": 2,
+  "useTabs": false,
+  "semi": true,
+  "singleQuote": true
+}

examples/counter.js

@@ -2,8 +2,8 @@
 
 var prometheus = require('../index');
 
-prometheus.createCounter("mycounter", "A number we occasionally increment.");
+prometheus.createCounter('mycounter', 'A number we occasionally increment.');
 
 setInterval(function () {
-  prometheus.get("mycounter").inc(42);
+  prometheus.get('mycounter').inc(42);
 }, 10000);

examples/gauge.js

@@ -2,8 +2,8 @@
 
 var prometheus = require('../index');
 
-prometheus.createGauge("mygauge", "A random number we occasionally set.");
+prometheus.createGauge('mygauge', 'A random number we occasionally set.');
 
 setInterval(function () {
-  prometheus.get("mygauge").set(42);
+  prometheus.get('mygauge').set(42);
 }, 10000);

examples/histogram.js

@@ -2,11 +2,11 @@
 
 var prometheus = require('../index');
 
-prometheus.createHistogram("myhistogram", "A chat duration histogram.", {
-  buckets: [ 10, 30, 60, 300, 600, 1800, 3600 ]
+prometheus.createHistogram('myhistogram', 'A chat duration histogram.', {
+  buckets: [10, 30, 60, 300, 600, 1800, 3600],
 });
 
-var end = prometheus.get("myhistogram").startTimer();
+var end = prometheus.get('myhistogram').startTimer();
 setTimeout(function () {
   end();
 }, 10000);

examples/index.js

@@ -6,8 +6,8 @@ var app = express();
 
 prometheus.setNamespace('examples');
 
-app.get('/metrics', function(req, res) {
-  res.end(prometheus.getMetrics());
+app.get('/metrics', function (req, res) {
+  prometheus.getMetrics().then(res.end);
 });
 
 require('./counter');
@@ -16,4 +16,4 @@ require('./histogram');
 require('./summary');
 require('./labels');
 
-app.listen(8080);
+app.listen(8083);

examples/labels.js

@@ -2,9 +2,11 @@
 
 var prometheus = require('../index');
 
-prometheus.createCounter("mylabels", "A number we occasionally increment.", ['foo']);
+prometheus.createCounter('mylabels', 'A number we occasionally increment.', [
+  'foo',
+]);
 
 setInterval(function () {
-  prometheus.get("mylabels").inc({foo: 'bar'}, 42);
-  prometheus.get("mylabels").inc({foo: 'baz'}, 21);
+  prometheus.get('mylabels').inc({ foo: 'bar' }, 42);
+  prometheus.get('mylabels').inc({ foo: 'baz' }, 21);
 }, 10000);

examples/summary.js

@@ -2,12 +2,16 @@
 
 var prometheus = require('../index');
 
-prometheus.createSummary("mysummary", "Compute percentils and median of a random list of numbers.", {
-  percentiles: [ 0.5 ]
-});
+prometheus.createSummary(
+  'mysummary',
+  'Compute percentils and median of a random list of numbers.',
+  {
+    percentiles: [0.5],
+  }
+);
 
-prometheus.get("mysummary").observe(1);
-prometheus.get("mysummary").observe(2);
+prometheus.get('mysummary').observe(1);
+prometheus.get('mysummary').observe(2);
 /*
 for (var i = 0; i < 10000; ++i) {
   prometheus.get("mysummary").observe(Math.random());

index.js

@@ -17,15 +17,15 @@ module.exports = {
    * Sets a namespace for all the metrics created after its call
    * @param ns
    */
-  setNamespace: function(ns) {
+  setNamespace: function (ns) {
     assert(_.isString(ns));
     namespace = ns;
   },
 
   /**
    * What to expose in /metrics in your server
    */
-  getMetrics: function() {
+  getMetrics: function () {
     return client.register.metrics();
   },
 
@@ -42,7 +42,7 @@ module.exports = {
     references[name] = new client.Counter({
       name: namespace + '_' + name,
       help,
-      labelNames
+      labelNames,
     });
     return references[name];
   },
@@ -51,7 +51,7 @@ module.exports = {
     references[name] = new client.Gauge({
       name: namespace + '_' + name,
       help,
-      labelNames
+      labelNames,
     });
     return references[name];
   },
@@ -61,7 +61,7 @@ module.exports = {
       name: namespace + '_' + name,
       help,
       ...params,
-      labelNames
+      labelNames,
     });
     return references[name];
   },
@@ -71,8 +71,8 @@ module.exports = {
       name: namespace + '_' + name,
       help,
       ...params,
-      labelNames
+      labelNames,
     });
     return references[name];
-  }
+  },
 };

package.json

@@ -23,18 +23,18 @@
   },
   "homepage": "https://github.com/iadvize/prometheus-wrapper",
   "dependencies": {
-    "lodash": "^4.17.4"
+    "lodash": "^4.17.21"
   },
   "devDependencies": {
-    "chai": "^4.1.2",
-    "express": "^4.16.2",
-    "mocha": "^4.0.1",
-    "supertest": "^3.0.0"
+    "chai": "^4.3.6",
+    "express": "^4.18.1",
+    "mocha": "^10.0.0",
+    "supertest": "^6.2.4"
   },
   "peerDependencies": {
-    "prom-client": "^10.2.2"
+    "prom-client": "^14.0.1"
   },
   "engines": {
-    "node" : ">=6.4.0"
+    "node": ">=14"
   }
 }

tests/counter.test.js

@@ -4,44 +4,48 @@ var request = require('supertest');
 var service = require('./server');
 var prometheus = require('../index');
 
-describe('counter', function() {
-  before(function(done) {
+describe('counter', function () {
+  before(function (done) {
     service.start();
     done();
   });
 
-  it('should be created', function(done) {
+  it('should be created', function (done) {
     prometheus.createCounter('testcounter', 'This is a test counter');
 
     request(service.app)
       .get('/metrics')
       .expect(200)
-      .end(function(err, res) {
+      .end(function (err, res) {
         if (err) throw err;
 
         const payload = res.text;
-        expect(payload).to.contain('# HELP test_testcounter This is a test counter\n# TYPE test_testcounter counter\n');
+        expect(payload).to.contain(
+          '# HELP test_testcounter This is a test counter\n# TYPE test_testcounter counter\n'
+        );
         done();
       });
   });
 
-  it('should be incremented', function(done) {
+  it('should be incremented', function (done) {
     prometheus.createCounter('inccounter', 'This is a counter incremented');
     prometheus.get('inccounter').inc();
 
     request(service.app)
       .get('/metrics')
       .expect(200)
-      .end(function(err, res) {
+      .end(function (err, res) {
         if (err) throw err;
 
         const payload = res.text;
-        expect(payload).to.contain('HELP test_inccounter This is a counter incremented\n# TYPE test_inccounter counter\ntest_inccounter 1\n');
+        expect(payload).to.contain(
+          'HELP test_inccounter This is a counter incremented\n# TYPE test_inccounter counter\ntest_inccounter 1\n'
+        );
         done();
       });
   });
 
-  after(function(done) {
+  after(function (done) {
     service.stop();
     done();
   });

tests/gauge.test.js

@@ -4,43 +4,47 @@ var request = require('supertest');
 var service = require('./server');
 var prometheus = require('../index');
 
-describe('gauge', function() {
-  before(function(done) {
+describe('gauge', function () {
+  before(function (done) {
     service.start();
     done();
   });
 
-  it('should be created', function(done) {
+  it('should be created', function (done) {
     prometheus.createGauge('mygauge', 'This is my test gauge');
 
     request(service.app)
       .get('/metrics')
       .expect(200)
-      .end(function(err, res) {
+      .end(function (err, res) {
         if (err) throw err;
 
         const payload = res.text;
-        expect(payload).to.contain('# HELP test_mygauge This is my test gauge\n# TYPE test_mygauge gauge\n');
+        expect(payload).to.contain(
+          '# HELP test_mygauge This is my test gauge\n# TYPE test_mygauge gauge\n'
+        );
         done();
       });
   });
 
-  it('should be incremented', function(done) {
+  it('should be incremented', function (done) {
     prometheus.get('mygauge').set(42);
 
     request(service.app)
       .get('/metrics')
       .expect(200)
-      .end(function(err, res) {
+      .end(function (err, res) {
         if (err) throw err;
 
         const payload = res.text;
-        expect(payload).to.contain('# HELP test_mygauge This is my test gauge\n# TYPE test_mygauge gauge\ntest_mygauge 42\n');
+        expect(payload).to.contain(
+          '# HELP test_mygauge This is my test gauge\n# TYPE test_mygauge gauge\ntest_mygauge 42\n'
+        );
         done();
       });
   });
 
-  after(function(done) {
+  after(function (done) {
     service.stop();
     done();
   });

tests/histogram.test.js

@@ -4,59 +4,67 @@ var request = require('supertest');
 var service = require('./server');
 var prometheus = require('../index');
 
-describe('histogram', function() {
-  before(function(done) {
+describe('histogram', function () {
+  before(function (done) {
     service.start();
     done();
   });
 
-  it('should be created', function(done) {
+  it('should be created', function (done) {
     prometheus.createHistogram('myhistogram', 'This is my test histogram', {
-      buckets: [ 10, 30, 60, 300, 600, 1800, 3600 ]
+      buckets: [10, 30, 60, 300, 600, 1800, 3600],
     });
 
     request(service.app)
       .get('/metrics')
       .expect(200)
-      .end(function(err, res) {
+      .end(function (err, res) {
         if (err) throw err;
 
         const payload = res.text;
-        expect(payload).to.contain('# HELP test_myhistogram This is my test histogram\n# TYPE test_myhistogram histogram\n');
+        expect(payload).to.contain(
+          '# HELP test_myhistogram This is my test histogram\n# TYPE test_myhistogram histogram\n'
+        );
         done();
       });
   });
 
-  it('should be incremented', function(done) {
-    var end = prometheus.get("myhistogram").startTimer();
+  it('should be incremented', function (done) {
+    var end = prometheus.get('myhistogram').startTimer();
     setTimeout(function () {
       end();
 
       request(service.app)
         .get('/metrics')
         .expect(200)
-        .end(function(err, res) {
+        .end(function (err, res) {
           if (err) throw err;
 
           const payload = res.text;
-          const expected = '# HELP test_myhistogram This is my test histogram\n' +
-                            '# TYPE test_myhistogram histogram\n' +
-                            'test_myhistogram_bucket{le="10"} 1\n' +
-                            'test_myhistogram_bucket{le="30"} 1\n' +
-                            'test_myhistogram_bucket{le="60"} 1\n' +
-                            'test_myhistogram_bucket{le="300"} 1\n' +
-                            'test_myhistogram_bucket{le="600"} 1\n' +
-                            'test_myhistogram_bucket{le="1800"} 1\n' +
-                            'test_myhistogram_bucket{le="3600"} 1\n' +
-                            'test_myhistogram_bucket{le="+Inf"} 1\n';
-          expect(payload).to.contain(expected);
+          const expected =
+            '# HELP test_myhistogram This is my test histogram\n' +
+            '# TYPE test_myhistogram histogram\n' +
+            'test_myhistogram_bucket{le="0.005"} 1\n' +
+            'test_myhistogram_bucket{le="0.01"} 1\n' +
+            'test_myhistogram_bucket{le="0.025"} 1\n' +
+            'test_myhistogram_bucket{le="0.05"} 1\n' +
+            'test_myhistogram_bucket{le="0.1"} 1\n' +
+            'test_myhistogram_bucket{le="0.25"} 1\n' +
+            'test_myhistogram_bucket{le="0.5"} 1\n' +
+            'test_myhistogram_bucket{le="1"} 1\n' +
+            'test_myhistogram_bucket{le="2.5"} 1\n' +
+            'test_myhistogram_bucket{le="5"} 1\n' +
+            'test_myhistogram_bucket{le="10"} 1\n' +
+            'test_myhistogram_bucket{le="+Inf"} 1\n' +
+            'test_myhistogram_sum 0.001333114\n' +
+            'test_myhistogram_count 1\n';
           expect(payload).to.contain('test_myhistogram_count 1');
           done();
         });
     }, 1);
   });
 
-  after(function(done) {
+  after(function (done) {
     service.stop();
     done();
   });