Add files for 2, 3, 4, 6, and 7

7/7_2.sh

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+python3 -m pip install --user virtualenv
+python3 -m venv env
+source env/bin/activate
+pip3 install pymongo python-dotenv
+python3 main.py

7/7_3.sh

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+pecl install mongodb
+php --ini
+echo "extension=mongodb.so" >>  /usr/local/etc/php/8.1/php.ini
+composer --version
+composer require mongodb/mongodb
+composer require vlucas/phpdotenv
+php index.php

7/7_4.sh

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+pecl install mongodb
+php --ini
+echo "extension=mongodb.so" >>  /usr/local/etc/php/8.1/php.ini
+composer --version
+composer require mongodb/mongodb
+composer require vlucas/phpdotenv
+php index.php

7/nodejs/index.js

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+const mongoose = require('mongoose');
+const { config } = require('dotenv');
+
+main().catch(err => console.log(err));
+
+async function main() {
+  config();
+
+  const uri = 'mongodb://0.0.0.0:27017/admin?retryWrites=true&w=majority';
+
+  await mongoose.connect(uri, {
+    dbName: "sample_data",
+    user: process.env.DB_USER,
+    pass: process.env.DB_PASSWORD
+  }).then(() => {
+    console.log('Connection established with MongoDB');
+  }).catch(error => console.error(error.message));
+
+  const { Schema } = mongoose;
+
+  const authorSchema = new Schema({
+    author: String,
+    message: String
+  }, { db: 'sample_data', collection: 'testnodejs' });
+
+  const Author = mongoose.model('Author', authorSchema);
+  const author = new Author({ author: 'Naomi Pentrel', message: 'hello world!' });
+
+  await author.save((error) => {
+    if (error) {
+      return console.log(`Error has occurred: ${error}`);
+    }
+    console.log('Document is successfully saved.');
+    Author.find(
+      {},
+      function (error, documents) {
+        if (error) {
+          return console.log(`Error has occurred: ${error}`);
+        }
+        console.log("document found:" + documents);
+      }
+    );
+  })
+}
+

7/nodejs/package.json

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+{
+  "name": "mongodb-sample-code",
+  "version": "1.0.0",
+  "description": "Sample code to connect to MongoDB",
+  "main": "index.js",
+  "scripts": {
+    "start": "node index.js"
+  },
+  "author": "Naomi Pentrel",
+  "license": "ISC",
+  "dependencies": {
+    "dotenv": "^16.0.0",
+    "mongoose": "^6.2.7"
+  }
+}

7/php/index.php

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+<?php
+
+require_once __DIR__ . '/vendor/autoload.php';
+
+$dotenv = Dotenv\Dotenv::createImmutable(__DIR__);
+$dotenv->load();
+
+$client = new MongoDB\Client(
+    'mongodb://' . $_ENV['MDB_USER'] . ':' . $_ENV['MDB_PASSWORD'] . '@localhost:27017/admin?retryWrites=true&w=majority'
+);
+
+$collection = $client->selectCollection('sample_data', 'testphp');
+
+$document = $collection->insertOne([
+    'author' => 'Naomi',
+    'message' => 'hello world!',
+]);
+
+$document = $collection->findOne();
+
+var_dump($document);
+
+?>

7/python/main.py

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+import os
+from pymongo import MongoClient
+from dotenv import load_dotenv
+
+load_dotenv()
+client = MongoClient(
+    'mongodb://localhost:27017/admin?retryWrites=true&w=majority',
+    username=os.getenv('DB_USER'),
+    password=os.getenv('DB_PASSWORD')
+)
+
+db = client['sample_data']
+collection = db['testpython']
+
+doc = { "author": "Naomi", "message": "hello world!"}
+
+doc_id = collection.insert_one(doc).inserted_id
+print(doc_id)
+
+found = collection.find_one()
+print(found)