intermediate commit

.env.example

@@ -0,0 +1,2 @@
+# connection string for mongodb in the form of "mongodb://user:password@host:port/db"
+MONGO_CONN_STR=mongodb://timo:bert@127.0.0.1:27017/timobert

.mocharc.js

@@ -0,0 +1,5 @@
+import { readFileSync } from "fs";
+
+const envFile = readFileSync('./.env', { encoding: 'utf8' });
+
+process.env.MONGO_CONN_STR = envFile.split('MONGO_CONN_STR=')[1].split('\n')[0];

index.js

@@ -1,6 +1,11 @@
-import { WebSocketServer } from 'ws';
-import { MongoClient } from 'mongodb';
+import * as ws from './lib/ws.js';
+import * as db from './lib/db.js';
 
+let myWs = ws.init({ port: process.env.WEB_SOCKET_PORT });
+let myDb = db.init(process.env.MONGO_CONN_STR);
+
+
+/*
 const mongo = new MongoClient(process.env.MONGO_CONN_STR);
 const db = mongo.db();
 const collections = {};
@@ -67,3 +72,4 @@ wss.on('connection', function connection(ws) {
   });
 
 });
+*/

lib/db.js

@@ -0,0 +1,30 @@
+import { MongoClient } from 'mongodb';
+/*
+console.log('connecting to ' + process.env.MONGO_CONN_STR);
+const 
+*/
+let mongo;
+let db;
+let functionCollection = {};
+
+export function init(connectionString) {
+  console.log(connectionString);
+  mongo = new MongoClient(connectionString);
+  mongo.connect().catch(e => {throw e});
+  db = mongo.db();
+
+  return functionCollection;
+}
+
+functionCollection.subsribe = function subsribe (b) {
+  let collection = db.collection(b);
+  collection.find({}, {}).toArray().then(r => console.log);
+}
+
+functionCollection.persist = function persist (b) {
+  console.log('persist');
+}
+
+functionCollection.publish = function publish (b) {
+  console.log('publish')
+}

lib/ws.js

@@ -0,0 +1,7 @@
+import { WebSocketServer } from "ws";
+
+let wss;
+
+export function init(cfg) {
+  wss = new WebSocketServer(cfg);
+}

package.json

@@ -4,8 +4,9 @@
   "main": "index.js",
   "type": "module",
   "scripts": {
-    "test": "echo \"Error: no test specified\" && exit 1",
-    "start": "node --env-file=.env index.js"
+    "test": "mocha",
+    "start": "node --env-file=.env index.js",
+    "watch": "node --watch --env-file=.env index.js"
   },
   "author": "",
   "license": "ISC",
@@ -13,5 +14,8 @@
   "dependencies": {
     "mongodb": "^6.13.0",
     "ws": "^8.18.0"
+  },
+  "devDependencies": {
+    "mocha": "^11.1.0"
   }
 }

test/db.test.js

@@ -0,0 +1,12 @@
+import mocha from 'mocha';
+import { subscribe } from '../lib/db.js';
+
+const assert = mocha.assert;
+
+describe('lib/db', function () {
+  describe('#indexOf()', function () {
+    it('should return -1 when the value is not present', function () {
+      assert.equal([1, 2, 3].indexOf(4), -1);
+    });
+  });
+});