Overview

A warm welcome to the Node.js: Building Scalable and High-Performance Applications course by Uplatz.Node.js is an open-source, cross-platform JavaScript runtime environment that allows developers to run JavaScript code on the server-side. Built on Google Chrome's V8 JavaScript engine, Node.js is designed for building scalable, high-performance applications by utilizing an event-driven, non-blocking I/O model. This makes it especially well-suited for applications that require real-time interactions, such as web servers, REST APIs, and streaming services. Additionally, Node.js comes with npm (Node Package Manager), which provides access to a vast ecosystem of libraries and tools to streamline development.How Node.js WorksEvent-driven, non-blocking I/O model: Node.js uses an event-driven, non-blocking I/O model which makes it lightweight and efficient. This means that when a request is made to the server, it doesn't block other requests from being processed. Instead, it continues to process other requests and once the initial request is complete, it emits an event to notify the server.Single-threaded: Node.js uses a single thread to handle multiple requests. This is different from traditional web servers which use multiple threads to handle requests. Node.js can handle a large number of requests concurrently due to its non-blocking I/O model.Modules: Node.js has a rich ecosystem of modules that can be used to perform various tasks. These modules can be easily installed using the npm (Node Package Manager) tool.Core Features of Node.jsAsynchronous and event-driven: All APIs of Node.js are asynchronous, meaning that the server doesn't wait for an API to return data. It moves to the next API after calling it, and a notification mechanism of Events of Node.js helps the server to get a response from the previous API call.Fast: Node.js library is very fast in code execution because it is built on Google Chrome's V8 JavaScript Engine.Single-threaded but highly scalable: Node.js uses a single-threaded model with event looping. Event mechanism helps the server to respond in a non-blocking way and makes the server highly scalable as opposed to traditional servers which create limited threads to handle requests.No buffering: Node.js applications never buffer any data. These applications simply output the data in chunks.Benefits of using Node.jsScalability: Node.js is highly scalable due to its non-blocking I/O model and event-driven architecture.Performance: Node.js is very fast and efficient due to its use of the V8 JavaScript engine and its non-blocking I/O model.Easy to learn: Node.js is easy to learn for developers who are already familiar with JavaScript.Large community: Node.js has a large and active community which provides support and contributes to the development of the platform.Some of the reasons why you should learn Node.jsHigh demand: Node.js is in high demand and there are many job opportunities available for Node.js developers.Full-stack development: Node.js can be used for both front-end and back-end development, which allows developers to build full-stack web applications using a single language.Microservices: Node.js is well-suited for building microservices, which are small, independent services that can be deployed and scaled independently.Real-time applications: Node.js is ideal for building real-time applications such as chat applications, online games, and collaboration tools.Node.js - Course CurriculumModule 1. Introduction to Node.jsNode.js BasicsOverview of Node.jsInitial concepts and advantages of using Node.jsModule 2. Core ConceptsCore Modules and File SystemsIntroduction to Node.js core modulesWorking with the file system (examples included)Node Package Manager (NPM)NPM commands and examplesOverview of the package.json fileYarnIntroduction to YarnComparison between Yarn and NPMModule 3. Building BlocksSimple HTTP Server with NodeCreate a basic HTTP serverAdd enhancements and featuresRouting BasicsSimple routes, dynamic routes, and query parametersModule 4. Asynchronous ProgrammingHandling Asynchronous CodeUsing Callbacks, Promises, and Async/AwaitModule 5. Modular DevelopmentCreating and Using Custom ModulesStep-by-step examplesModule 6. Middleware and DebuggingMiddleware in Node.jsDifferent middleware types, including Express examplesDebugging and Error HandlingTechniques for debugging and managing errorsModule 7. Development ToolsNodemon TutorialAutomating server restarts during developmentModule 8. Express.jsIntroduction to ExpressSetting up and using Express.jsMiddleware in ExpressExploring various middleware optionsCreating RESTful APIs with ExpressDeveloping RESTful APIs (examples included)Handling Query Parameters and Request BodiesPractical examples using PostmanModule 9. API TestingIntroduction to PostmanFeatures and usage for API testingModule 10. NoSQL Databases (MongoDB)Understanding NoSQL DatabasesBasics of NoSQL and MongoDBOverview of MongoDB FeaturesIntroduction to MongooseOverview and benefitsSetting Up MongoDBLocal setup and MongoDB Atlas configurationInstalling MongooseSetting up a basic project with MongooseCRUD Operations in MongoDBHands-on examplesModule 11. Advanced MongoDB and MongooseMongoDB Virtuals, Getters, and SettersMiddleware in MongooseMongoDB Schema RelationshipsAggregation Framework$match, $group, $sort, $project stagesMongoose Aggregation QueriesMongoose Schema ValidationBuilt-in and custom validation techniquesHandling ErrorsValidation and connection errorsCreating and Using IndexesExamples and optimization tipsOptimizing Mongoose QueriesTransactions in MongoDBUsing transactions effectivelyRole-Based Access Control (RBAC)Implementation with MongooseDesigning Data Models in MongoDBIntegrating Mongoose with ExpressCreating RESTful APIsModule 12. Deployment and MonitoringDeploying MongoDB ApplicationsMonitoring and Maintenance TechniquesModule 13. EJS (Embedded JavaScript Templates)Getting Started with EJSSetting Up an EJS ProjectPassing Data to TemplatesUsing Partials and Static AssetsConditional Rendering and LoopsError Handling in EJSModule 14. Relational Databases (PostgreSQL)Introduction to PostgreSQLBasics and setup using psql and pgAdminBasic SQL CommandsPostgreSQL Data Types, Primary Keys, and ConstraintsAdvanced SQL (SELECT, Joins, Views, Indexes)Transactions and ConcurrencyFunctions, Procedures, and TriggersWorking with JSON and ArraysFull-Text SearchModule 15. PostgreSQL with Node.jsIntegrating PostgreSQL with NodeBackend Development with PostgreSQL and ExpressRelationships and JoinsUsing Knex.js for Query BuildingModule 16. Security and Best PracticesUser Authentication with JWTMiddleware and Validation (using Joi)Security Best PracticesModule 17. Advanced DevelopmentMigrations and SeedersFrontend IntegrationUsing React.js, Fetch, and AxiosModule 18. Final TouchesInterview Questions and AnswersKey concepts and code snippets for interview preparation

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