Clean code.

.eslintrc.json

@@ -0,0 +1,46 @@
+{
+    "root": true,
+    "env": {
+        "node": true,
+        "browser": true,
+        "es6": true
+    },
+    "extends": [
+        "eslint:recommended"
+    ],
+    "globals": {
+        "Atomics": "readonly",
+        "SharedArrayBuffer": "readonly",
+        "$": "readonly",
+        "google": "readonly",
+        "exampleGlobalVariable": true
+    },
+    "plugins": [
+        // "jquery"
+    ],
+    "parserOptions": {
+        "ecmaVersion": 2018,
+        "sourceType": "module"
+    },
+    "rules": {
+        "semi": ["error", "always"],
+        "no-inner-declarations": 0,
+        "indent": ["error", 4],
+        "eqeqeq": ["warn", "always"],
+        "curly": "error",
+        "default-case": "error",
+        "no-var": "error",
+        "no-multi-spaces": "error",
+        "no-useless-constructor": "error",
+        "prefer-const": "error",
+        "prefer-rest-params": "error",
+        "prefer-spread": "error",
+        "no-console": "off",
+        "prefer-template": "warn",
+        "quotes": [
+            "warn",
+            "single",
+            { "avoidEscape": true }
+        ]
+    }
+}

.vscode/launch.json

@@ -0,0 +1,17 @@
+{
+    // Use IntelliSense to learn about possible attributes.
+    // Hover to view descriptions of existing attributes.
+    // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
+    "version": "0.2.0",
+    "configurations": [
+        {
+            "type": "node",
+            "request": "launch",
+            "name": "Launch Program",
+            "skipFiles": [
+                "<node_internals>/**"
+            ],
+            "program": "${workspaceFolder}/src/js/app.js"
+        }
+    ]
+}

app.js

@@ -1,12 +0,0 @@
-const express = require('express');
-const Mongo = require('./mongo');
-
-const app = express();
-const port = 3000;
-
-
-app.get('/test', (request, response) => {
-    const mongoClient = new Mongo();
-})
-
-app.listen(port, () => console.log('Mock is listening at port ', port, '\n'));

docker/docker-compose.yml

@@ -0,0 +1,7 @@
+version: "3.6"
+services:
+  mongo:
+    container_name: "mongo"
+    image: "mongo:latest"
+    ports:
+     - "27017:27017"

mongo.js

@@ -1,27 +0,0 @@
-const mongodb = require('mongodb');
-const assert = require('assert');
-
-const mongoConfig = {
-    url: 'mongodb://localhost:27017',
-    username: 'express-user',
-    password: 'P@ssword1',
-    database: 'express-test'
-}
-
-class Mongo {
-    constructor() {
-        mongodb.MongoClient.connect(mongoConfig.url, (err, client) => {
-            assert.equal(null, err);
-            console.log('Connected successfuly to mongodb');
-            this.db = client.db(mongoConfig.database);
-
-            this.db.collection('test').find({}, (err, results) => {
-                results.forEach(console.log);
-            });
-
-            client.close();
-        })
-    }
-}
-
-module.exports = Mongo;

package-lock.json

@@ -1,5 +1,5 @@
 {
-  "name": "Mock-SDS",
+  "name": "ExpressJS",
   "version": "1.0.0",
   "lockfileVersion": 1,
   "requires": true,
@@ -179,7 +179,6 @@
       "version": "2.2.1",
       "resolved": "https://registry.npmjs.org/bl/-/bl-2.2.1.tgz",
       "integrity": "sha512-6Pesp1w0DEX1N550i/uGV/TqucVL4AM/pgThFSN/Qq9si1/DF9aIHs1BxD8V/QU0HoeHO6cQRTAuYnLPKq1e4g==",
-      "dev": true,
       "requires": {
         "readable-stream": "^2.3.5",
         "safe-buffer": "^5.1.1"
@@ -315,8 +314,7 @@
     "bson": {
       "version": "1.1.5",
       "resolved": "https://registry.npmjs.org/bson/-/bson-1.1.5.tgz",
-      "integrity": "sha512-kDuEzldR21lHciPQAIulLs1LZlCXdLziXI6Mb/TDkwXhb//UORJNPXgcRs2CuO4H0DcMkpfT3/ySsP3unoZjBg==",
-      "dev": true
+      "integrity": "sha512-kDuEzldR21lHciPQAIulLs1LZlCXdLziXI6Mb/TDkwXhb//UORJNPXgcRs2CuO4H0DcMkpfT3/ySsP3unoZjBg=="
     },
     "bytes": {
       "version": "3.1.0",
@@ -517,8 +515,7 @@
     "core-util-is": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/core-util-is/-/core-util-is-1.0.2.tgz",
-      "integrity": "sha1-tf1UIgqivFq1eqtxQMlAdUUDwac=",
-      "dev": true
+      "integrity": "sha1-tf1UIgqivFq1eqtxQMlAdUUDwac="
     },
     "cross-spawn": {
       "version": "7.0.3",
@@ -575,8 +572,7 @@
     "denque": {
       "version": "1.4.1",
       "resolved": "https://registry.npmjs.org/denque/-/denque-1.4.1.tgz",
-      "integrity": "sha512-OfzPuSZKGcgr96rf1oODnfjqBFmr1DVoc/TrItj3Ohe0Ah1C5WX5Baquw/9U9KovnQ88EqmJbD66rKYUQYN1tQ==",
-      "dev": true
+      "integrity": "sha512-OfzPuSZKGcgr96rf1oODnfjqBFmr1DVoc/TrItj3Ohe0Ah1C5WX5Baquw/9U9KovnQ88EqmJbD66rKYUQYN1tQ=="
     },
     "depd": {
       "version": "1.1.2",
@@ -1241,8 +1237,7 @@
     "isarray": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/isarray/-/isarray-1.0.0.tgz",
-      "integrity": "sha1-u5NdSFgsuhaMBoNJV6VKPgcSTxE=",
-      "dev": true
+      "integrity": "sha1-u5NdSFgsuhaMBoNJV6VKPgcSTxE="
     },
     "isexe": {
       "version": "2.0.0",
@@ -1350,7 +1345,6 @@
       "version": "1.5.0",
       "resolved": "https://registry.npmjs.org/memory-pager/-/memory-pager-1.5.0.tgz",
       "integrity": "sha512-ZS4Bp4r/Zoeq6+NLJpP+0Zzm0pR8whtGPf1XExKLJBAczGMnSi3It14OiNCStjQjM6NU1okjQGSxgEZN8eBYKg==",
-      "dev": true,
       "optional": true
     },
     "merge-descriptors": {
@@ -1415,7 +1409,6 @@
       "version": "3.6.1",
       "resolved": "https://registry.npmjs.org/mongodb/-/mongodb-3.6.1.tgz",
       "integrity": "sha512-uH76Zzr5wPptnjEKJRQnwTsomtFOU/kQEU8a9hKHr2M7y9qVk7Q4Pkv0EQVp88742z9+RwvsdTw6dRjDZCNu1g==",
-      "dev": true,
       "requires": {
         "bl": "^2.2.0",
         "bson": "^1.1.4",
@@ -1618,8 +1611,7 @@
     "process-nextick-args": {
       "version": "2.0.1",
       "resolved": "https://registry.npmjs.org/process-nextick-args/-/process-nextick-args-2.0.1.tgz",
-      "integrity": "sha512-3ouUOpQhtgrbOa17J7+uxOTpITYWaGP7/AhoR3+A+/1e9skrzelGi/dXzEYyvbxubEF6Wn2ypscTKiKJFFn1ag==",
-      "dev": true
+      "integrity": "sha512-3ouUOpQhtgrbOa17J7+uxOTpITYWaGP7/AhoR3+A+/1e9skrzelGi/dXzEYyvbxubEF6Wn2ypscTKiKJFFn1ag=="
     },
     "progress": {
       "version": "2.0.3",
@@ -1712,7 +1704,6 @@
       "version": "2.3.7",
       "resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-2.3.7.tgz",
       "integrity": "sha512-Ebho8K4jIbHAxnuxi7o42OrZgF/ZTNcsZj6nRKyUmkhLFq8CHItp/fy6hQZuZmP/n3yZ9VBUbp4zz/mX8hmYPw==",
-      "dev": true,
       "requires": {
         "core-util-is": "~1.0.0",
         "inherits": "~2.0.3",
@@ -1760,7 +1751,6 @@
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/require_optional/-/require_optional-1.0.1.tgz",
       "integrity": "sha512-qhM/y57enGWHAe3v/NcwML6a3/vfESLe/sGM2dII+gEO0BpKRUkWZow/tyloNqJyN6kXSl3RyyM8Ll5D/sJP8g==",
-      "dev": true,
       "requires": {
         "resolve-from": "^2.0.0",
         "semver": "^5.1.0"
@@ -1769,14 +1759,12 @@
         "resolve-from": {
           "version": "2.0.0",
           "resolved": "https://registry.npmjs.org/resolve-from/-/resolve-from-2.0.0.tgz",
-          "integrity": "sha1-lICrIOlP+h2egKgEx+oUdhGWa1c=",
-          "dev": true
+          "integrity": "sha1-lICrIOlP+h2egKgEx+oUdhGWa1c="
         },
         "semver": {
           "version": "5.7.1",
           "resolved": "https://registry.npmjs.org/semver/-/semver-5.7.1.tgz",
-          "integrity": "sha512-sauaDf/PZdVgrLTNYHRtpXa1iRiKcaebiKQ1BJdpQlWH2lCvexQdX55snPFyK7QzpudqbCI0qXFfOasHdyNDGQ==",
-          "dev": true
+          "integrity": "sha512-sauaDf/PZdVgrLTNYHRtpXa1iRiKcaebiKQ1BJdpQlWH2lCvexQdX55snPFyK7QzpudqbCI0qXFfOasHdyNDGQ=="
         }
       }
     },
@@ -1827,7 +1815,6 @@
       "version": "1.0.3",
       "resolved": "https://registry.npmjs.org/saslprep/-/saslprep-1.0.3.tgz",
       "integrity": "sha512-/MY/PEMbk2SuY5sScONwhUDsV2p77Znkb/q3nSVstq/yQzYJOH/Azh29p9oJLsl3LnQwSvZDKagDGBsBwSooag==",
-      "dev": true,
       "optional": true,
       "requires": {
         "sparse-bitfield": "^3.0.3"
@@ -1935,7 +1922,6 @@
       "version": "3.0.3",
       "resolved": "https://registry.npmjs.org/sparse-bitfield/-/sparse-bitfield-3.0.3.tgz",
       "integrity": "sha1-/0rm5oZWBWuks+eSqzM004JzyhE=",
-      "dev": true,
       "optional": true,
       "requires": {
         "memory-pager": "^1.0.2"
@@ -1984,7 +1970,6 @@
       "version": "1.1.1",
       "resolved": "https://registry.npmjs.org/string_decoder/-/string_decoder-1.1.1.tgz",
       "integrity": "sha512-n/ShnvDi6FHbbVfviro+WojiFzv+s8MPMHBczVePfUpDJLwoLT0ht1l4YwBCbi8pJAveEEdnkHyPyTP/mzRfwg==",
-      "dev": true,
       "requires": {
         "safe-buffer": "~5.1.0"
       }
@@ -2216,8 +2201,7 @@
     "util-deprecate": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/util-deprecate/-/util-deprecate-1.0.2.tgz",
-      "integrity": "sha1-RQ1Nyfpw3nMnYvvS1KKJgUGaDM8=",
-      "dev": true
+      "integrity": "sha1-RQ1Nyfpw3nMnYvvS1KKJgUGaDM8="
     },
     "utils-merge": {
       "version": "1.0.1",

package.json

@@ -4,19 +4,19 @@
   "description": "",
   "main": "index.js",
   "scripts": {
-    "start": "nodemon ./app.js localhost 3000",
+    "start": "nodemon ./src/js/app.js localhost 3000",
     "test": "echo \"Error: no test specified\" && exit 1"
   },
   "keywords": [],
   "author": "",
   "license": "ISC",
   "dependencies": {
-    "express": "^4.17.1"
+    "express": "^4.17.1",
+    "mongodb": "^3.6.1"
   },
   "devDependencies": {
     "eslint": "^7.4.0",
     "eslint-plugin-node": "^11.1.0",
-    "nodemon": "^2.0.4",
-    "mongodb": "^3.6.1"
+    "nodemon": "^2.0.4"
   }
 }

src/js/app.js

@@ -0,0 +1,13 @@
+const express = require('express');
+const bodyParser = require('body-parser');
+const applicationController = require('./controller/applicationCtrl');
+
+const port = 3000;
+
+const app = express();
+app.use(bodyParser.urlencoded({ extended: true }));
+app.use(bodyParser.json());
+
+app.use('/apps', applicationController);
+
+app.listen(port, () => console.log('Mock is listening at port ', port, '\n'));

src/js/configuration.js

@@ -0,0 +1,8 @@
+module.exports = {
+    database: {
+        url: 'mongodb://localhost:27017',
+        username: 'express-user',
+        password: 'P@ssword1',
+        database: 'express-test'
+    }
+};

src/js/controller/applicationCtrl.js

@@ -0,0 +1,47 @@
+const ObjectId = require('mongodb').ObjectId;
+const Repository = require('../repository/repository');
+const router = require('express').Router();
+
+const applicationRepository = new Repository('applications');
+
+router.get('/', (request, response) => {
+    applicationRepository.find({}, results => {
+        response.json(results);
+    });
+});
+
+router.post('/', (request, response) => {
+    applicationRepository.insert(request.body, (result) => {
+        response.json(result);
+    });
+});
+
+router.put('/:applicationId', (request, response) => {
+    const applicationId = ObjectId(request.params.applicationId);
+    applicationRepository.find({_id: applicationId}, entity => {
+        if (entity.length === 0) {
+            response.status(404).send();
+        } else {
+            const applicationToUpdate = request.body;
+            applicationToUpdate._id = applicationId;
+            applicationRepository.update(applicationToUpdate, () => {
+                response.status(204).send();
+            });
+        }
+    });
+});
+
+router.delete('/:applicationId', (request, response) => {
+    const applicationId = ObjectId(request.params.applicationId);
+    applicationRepository.find({_id: applicationId}, entity => {
+        if (entity.length === 0) {
+            response.status(404).send();
+        } else {
+            applicationRepository.delete(applicationId, () => {
+                response.status(204).send();
+            });
+        }
+    });
+});
+
+module.exports = router;

src/js/repository/mongoClient.js

@@ -0,0 +1,52 @@
+const mongodb = require('mongodb');
+const assert = require('assert');
+
+const configuration = require('../configuration');
+const mongoConfig = configuration.database;
+
+class MongoClient {
+    constructor() {
+        mongodb.MongoClient.connect(mongoConfig.url, (error, client) => {
+            assert.equal(null, error, `Unable to connect to mongodb: ${error}.`);
+            console.log('Connected successfuly to mongodb');
+            this.db = client.db(mongoConfig.database);
+        });
+    }
+
+    find(collectionName, query, callback) {
+        this.db.collection(collectionName).find(query).toArray()
+            .then(results => {
+                console.log(`Entities ${collectionName} founded.`);
+                callback(results);
+            })
+            .catch(error => console.error(error));
+    }
+
+    insert(collectionName, entity, callback) {
+        this.db.collection(collectionName).insert(entity, (error, result) => {
+            assert.equal(null, error, `Unable to insert ${collectionName} entity: ${error}.`);
+            console.log(`Entity ${collectionName} inserted.`);
+            // Return only the inserted document.
+            callback(result.ops[0]);
+        });
+    }
+
+    update(collectionName, entity, callback) {
+        this.db.collection(collectionName).save(entity, (error) => {
+            assert.equal(null, error, `Unable to update ${collectionName} entity: ${error}.`);
+            console.log(`Entity ${collectionName} updated.`);
+            callback();
+        });
+    }
+
+    delete(collectionName, entityId, callback) {
+        this.db.collection(collectionName).deleteOne({_id: mongodb.ObjectId(entityId)}, (error, result) => {
+            assert.equal(null, error, `Unable to delete ${collectionName} entity with id ${entityId}: ${error}.`);
+            console.log(`Entity ${collectionName} with id ${entityId} deleted.`);
+            callback();
+        });
+    }
+}
+
+const mongoClient = new MongoClient();
+module.exports = mongoClient;

src/js/repository/repository.js

@@ -0,0 +1,26 @@
+const mongoClient = require('./mongoClient');
+
+class Repository {
+    constructor(collectionName) {
+        this.collectionName = collectionName;
+        this.mongoClient = mongoClient;
+    }
+
+    find(query, callback) {
+        this.mongoClient.find(this.collectionName, query, callback);
+    }
+
+    insert(entity, callback) {
+        this.mongoClient.insert(this.collectionName, entity, callback);
+    }
+
+    update(entity, callback) {
+        this.mongoClient.update(this.collectionName, entity, callback);
+    }
+
+    delete(entityId, callback) {
+        this.mongoClient.delete(this.collectionName, entityId, callback);
+    }
+};
+
+module.exports = Repository;

src/mongodb/initDatabase.js

@@ -0,0 +1,14 @@
+use express-test;
+
+db.collection.test.insert({id: 'test'});
+
+db.createUser(
+    {
+      user: "express-user",
+      pwd: "P@ssword1",
+      roles:
+        [
+          { role: "readWrite", db: "express-test" }
+        ]
+    }
+)