Введение в веб-разработку: Backend,

Структура курса

• + 1. Node.js: Node != JavaScript

  • V8 Under the Hood
  • libuv
  • Adding Features to Javascript
  • Node's CLI and REPL
  • Global Object, Process, and Buffer
  • Conceptual Aside: CommonJS and ESM Modules
  • How require() Actually Works
  • Wrapping and Caching Modules
  • JSON and C++ Addons
  • Package managers: NPM and Yarn

• + 2. Node.js: Concurrency Model and Event Loop

  • Javascript Aside: Javascript is Synchronous
  • What Is I/O
  • The Event Loop and Non-Blocking Asynchronous Execution
  • The Call Stack
  • Handling Slow Operations
  • Conceptual Aside: Callbacks
  • How Callbacks Actually Work
  • Conceptual Aside: Timers
  • setImmediate and process.nextTick

• + 3. Node.js: Node's Event-driven Architecture

  • Callbacks, Promises, and Async/Await
  • Conceptual Aside: Events
  • The Node Event Emitter
  • Inheriting From the Event Emitter
  • Arguments, Errors, and Order of Listeners
  • Peculiarities of working with Event Emitter

• + 4. Node.js: Working with Streams

  • Stream All the Things!
  • Streams 101
  • Implementing Readable and Writable Streams
  • Duplex Streams and Transform Streams

• + 5. Node.js: Node's Common Built-in Libraries

  • Working with module OS
  • Path: utilities for working with file and directory paths
  • Process: controlling Node processes
  • Solving cryptographic tasks with Crypto

• + 6. Node.js: Working with the File System

  • Providing information with fs.Stats
  • Read and Write operations with fs.ReadStream and fs.WriteStream modules
  • Basic operations with files
  • Basic operations with directories
  • Working with module fs.FSWatcher

• + 7. Node.js: Node for Networking

  • TCP Networking with the Net Module
  • Difference between Socket and WebSocket
  • Working with Multiple Sockets
  • The DNS Module
  • UDP Datagram Sockets

• + 8. Node.js: Testing, Debugging and Logging

  • Working with Debugger
  • Working with debug package
  • Debugging Node Application with ndb package and Chrome DevTools
  • Configuring Visual Studio Code
  • Configuring WebStorm
  • Testing performance with special tool MemoryUsage
  • Testing Application with Jest
  • What Is Application Logging?
  • What’s the Motivation for Logging?
  • What Should You Log?
  • Getting Started With Winston
  • Log Aggregation to the Rescue
  • How to connect Winston and Loggly

• + 9. Express: REST & Routing

  • Introduction to RESTful API
  • REST API Restrictions
  • Best Practice to develop RESTful API's
  • Route methods
  • Route paths
  • Route parameters
  • Route handlers
  • Request & Response headers
  • Request & Response methods

• + 10. Express: Middleware

  • Application-level middleware
  • Router-level middleware
  • Error-handling middleware
  • Built-in middleware
  • Third-party middleware
  • Writing middleware for use in Express apps

• + 11. Express: Error Handling, Debugging & PM2

  • Catching Errors
  • The default error handler
  • Writing error handlers
  • Working with Debug mode in Express Application
  • Advanced process managers
  • Zero downtime with PM2
  • Manage multiple processes with PM2
  • Deploy applications with PM2
  • Custom metrics with PM2

• + 12. Express: Authentication

  • JSON Web Tokens
  • Using JWT with Express
  • Authentication with Middleware
  • Working with Passport.js
  • Working with Cookies
  • Working with Sessions

• + 13. Express: Production Best Practices: Security

  • Don’t use deprecated or vulnerable versions of Express
  • Use TLS
  • Use Helmet
  • Working with CORS
  • Working with CRLF
  • Use cookies securely
  • Ensure your dependencies are secure
  • Avoid other known vulnerabilities
  • Additional considerations

• + 14. Express: Testing Express Application

  • Working with jest
  • Mocking of Node.js modules with mock-require
  • Testing API with supertest
  • Testing External APIs with Nock

• + 15. MongoDB: The Shell

  • MongoDB overview
  • First Run
  • Command Line Options
  • Database is Namespace
  • Shell Role in Ecosystem
  • Shell Modes
  • Shell Invoking Syntax
  • Using Eval
  • Substantial Scripts
  • Execute Script Before Enter
  • Shell Keys and Shortcuts
  • Multiline Editing
  • External Editor Integration
  • Load Script from Within
  • User RC File
  • Common Safety Usage Tip
  • Shell Alternatives

• + 16. MongoDB: Data Management

  • Storage
  • BSON
  • Saving Documents
  • Collections
  • Document _id
  • ObjectId
  • Insert
  • Insert with _id
  • Complex Document
  • Array Type
  • Save Danger
  • Update Documents
  • $set Operator
  • $unset Operator
  • $rename Operator
  • $push Operator
  • $pull Operator
  • $pop Operator

• + 17. MongoDB: Finding Documents

  • find()
  • findOne()
  • sort()
  • limit()
  • skip()
  • Dot Notation
  • Sub-Document
  • Equality
  • Protection
  • Comparison
  • $and
  • $not
  • $in
  • $nin
  • null and $exists
  • Cursor

• + 18. MongoDB: Indexing

  • Scan is Bad
  • Index Theory
  • Sort Uses Index
  • Create Index
  • system.indexes collection
  • explain()
  • nscanned
  • Multi-Term Query
  • Scanned vs. Returned
  • dropIndex()
  • Nested Fields
  • Array Field
  • Sort
  • Unique
  • Sparse
  • Compound
  • Sort Direction
  • Covering Index
  • Dead Weight
  • Background build
  • Index Name

• + 19. Mongoose: Building a Schema and Model

  • Connection Mongoose to MongoDB
  • Comparison — RDBMS Schemas
  • Simple Schema
  • Allowed Data Types
  • Complex Schema
  • Our First Model
  • Documents
  • Sub-Documents
  • Saving Documents and others actions

• + 20. Mongoose: Options

  • autoIndex
  • bufferCommands
  • capped
  • collection
  • minimize
  • read
  • writeConcern
  • safe
  • shardKey
  • strict
  • strictQuery
  • toJSON
  • toObject
  • typeKey
  • validateBeforeSave
  • versionKey
  • collation
  • skipVersioning
  • timestamps
  • selectPopulatedPaths
  • storeSubdocValidationError

• + 21. Mongoose: Queries

  • Querying Documents
  • Sorting Documents
  • Querying Documents Limit
  • Virtuals
  • Documents and Their Helper Methods
  • How to Transform Mongoose Document into a Plain Object

• + 22. Mongoose: Transactions

  • Populate: Saving refs
  • Setting Populated Fields
  • Populate: Field Selection
  • Populating Multiple Paths
  • Populate: Query conditions and other options
  • Populate: Refs to children
  • Populating an existing document
  • Populating multiple existing documents
  • Populating across multiple levels
  • Populating across Databases
  • Populate: Dynamic References via refPath
  • Populate Virtuals
  • Populate in Middleware
  • Transactions Overview
  • Basic Transaction
  • Transaction with the Aggregation Framework

• + 23. Mongoose: Validation

  • Built-In Validators
  • Middleware
  • Custom Validators
  • Handling Validation Errors

• + 24. Mongoose: Plugins. Discriminators

  • Plugin Library
  • Custom Plugin
  • Discriminators: Inheritance Overview
  • Discriminators: Extending a Base Schema
  • Discriminators: User Interface Considerations

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