Hands-on Node.js

Table of Contents

• Introduction
  • Why the sudden, exponential popularity?
  • What does this book cover?
  • What does this book not cover?
  • Prerequisites
  • Exercises
  • Source code
  • Where will this book lead you?
• Why?
  • Why the event loop?
    • Solution 1: Create more call stacks
    • Solution 2: Use event-driven I/O
  • Why JavaScript?
    • How I Learned to Stop Fearing and Love JavaScript
      • Function Declaration Styles
      • Functions are first-class objects
    • JSHint
    • JavaScript versions
  • References
• Starting up
  • Install Node
• Understanding
  • Understanding the Node event loop
    • An event-queue processing loop
    • Callbacks that will generate events
    • Don’t block!
• Modules and NPM
  • Modules
    • How Node resolves a module path
      • Core modules
      • Modules with complete or relative path
      • As a file
      • As a directory
      • As an installed module
  • NPM - Node Package Manager
    • Global vs. Local
    • NPM commands
      • npm ls [filter]
      • npm install package[@filters]
      • npm rm package_name[@version] [package_name[@version] …]
      • npm view [@] [[.]…]
  • The Package.json Manifest
• Utilities
  • console
  • util
• Buffers
  • Slice a buffer
  • Copy a buffer
  • Buffer Exercises
    • Exercise 1
    • Exercise 2
    • Exercise 3
• Event Emitter
  • Creating an Event Emitter
  • Event Emitter Exercises
    • Exercise 1
    • Exercise 2
• Timers
  • setTimeout
  • clearTimeout
  • setInterval
  • clearInterval
  • setImmediate
    • Escaping the event loop
    • A note on tail recursion
• Low-level file-system
  • fs.stat and fs.fstat
  • Open a file
  • Read from a file
  • Write into a file
    • Close Your files
  • File-system Exercises
    • Exercise 1 - get the size of a file
    • Exercise 2 - read a chunk from a file
    • Exercise 3 - read two chunks from a file
    • Exercise 4 - Overwrite a file
    • Exercise 5 - append to a file
    • Exercise 6 - change the content of a file
• HTTP
  • HTTP Server
    • The http.ServerRequest object
      • req.url
      • req.method
      • req.headers
      • The http.ServerResponse object
        • Write a header
        • Change or set a header
        • Remove a header
        • Write a piece of the response body
  • HTTP Client
    • • http.get()
    • http.request()
  • HTTP Exercises
    • Exercise 1
    • Exercise 2
    • Exercise 3
    • Exercise 4
• Streams
  • ReadStream
    • Wait for data
    • Know when it ends
    • Pause it
    • Resume it
  • WriteStream
    • Write to it
    • Wait for it to drain
  • Some stream examples
    • Filesystem streams
    • Network streams
  • The Slow Client Problem and Back-pressure
    • What can we do?
    • Pipe
• TCP
  • Write a string or a buffer
  • end
  • …and all the other methods
  • Idle sockets
  • Keep-alive
  • Delay or no delay
  • server.close()
  • Listening
  • TCP client
  • Error handling
  • TCP Exercises
    • Exercise 1
    • Exercise 2
• Datagrams (UDP)
  • Datagram server
  • Datagram client
  • Datagram Multicast
    • Receiving multicast messages
    • Sending multicast messages
    • What can be the datagram maximum size?
  • UDP Exercises
    • Exercise 1
• Child processes
  • Executing commands
  • Spawning processes
  • Killing processes
  • Child Processes Exercises
    • Exercise 1
• Streaming HTTP chunked responses
  • • A streaming example
  • Streaming Exercises
    • Exercise 1
• TLS / SSL
  • Public / private keys
    • Private key
    • Public key
  • TLS Client
  • TLS Server
    • Verification
  • TLS Exercises
    • Exercise 1
    • Exercise 2
    • Exercise 3
    • Exercise 4
    • Exercise 5
• HTTPS
  • HTTPS Server
  • HTTPS Client
• Making modules
  • CommonJS modules
  • One file module
  • An aggregating module
  • A pseudo-class
  • A pseudo-class that inherits
  • node_modules and npm bundle
    • Bundling
• Debugging
  • console.log
  • Node built-in debugger
  • Node Inspector
  • Live edit
• Automated Unit Testing
  • A test runner
  • Assertion testing module
    • should.js
      • • Assert truthfulness:
        • or untruthfulness:
        • = true
        • = false
        • emptiness
        • equality
        • equal (strict equality)
        • assert numeric range (inclusive) with within
        • test numeric value is above given value:
        • test numeric value is below given value:
        • matching regular expressions
        • test length
        • substring inclusion
        • assert typeof
        • property existence
        • array containment
        • own object keys
        • responds to, asserting that a given property is a function:
  • Putting it all together
• Callback flow
  • The boomerang effect
  • Using caolan/async
    • Collections
      • Parallel Iterations
      • async.forEach
      • async.map
      • async.forEachLimit
      • async.filter
      • async.reject
      • async.reduce
      • async.detect
      • async.some
      • async.every
    • Flow Control
      • async.series
      • async.parallel
      • async.whilst
      • async.until
      • async.waterfall
      • async.queue
• Appendix - Exercise Results
  • Chapter: Buffers
    • Exercise 1
      • One Solution:
    • Exercise 2
      • One Solution:
    • Exercise 3
      • One Solution:
  • Chapter: Event Emitter
    • Exercise 1
      • One Solution:
    • Exercise 2
      • One Solution:
  • Chapter: Low-level File System
    • Exercise 1 - get the size of a file
      • One Solution:
    • Exercise 2 - read a chunk from a file
      • One Solution:
    • Exercise 3 - read two chunks from a file
      • One Solution:
    • Exercise 4 - Overwrite a file
      • One Solution:
    • Exercise 5 - append to a file
      • One Solution:
    • Exercise 6 - change the content of a file
      • One Solution:
  • Chapter: HTTP
    • Exercise 1
      • One Solution:
    • Exercise 2
      • One Solution:
    • Exercise 3
      • One Solution:
    • Exercise 4
      • One Solution:
  • Chapter: Child processes
    • Exercise 1
      • One Solution:
  • Chapter: Streaming HTTP Chunked responses
    • Exercise 1
      • One Solution:
  • Chapter: UDP
    • Exercise 1
      • One Solution:
  • Chapter: TCP
    • Exercise 1
      • One Solution:
    • Exercise 2
      • One Solution:
  • Chapter: SSL / TLS
    • Exercise 1
      • One Solution:
    • Exercise 2
      • One Solution:
    • Exercise 3
      • One Solution:
    • Exercise 4
      • One Solution:
    • Exercise 5
      • One Solution: