http-with-node

Node.js HTTP Module and Networking

Table of Contents

1. The HTTP Module
2. Working with the Request Body
3. Managing HTTP Responses
4. Handling File Uploads with Formidable
5. The "axios" Package

The HTTP Module

Node.js comes with a built-in HTTP module that provides a flexible, robust API. It allows you to:

• Create a server
• Work with streamed data
• Make API calls

This is done without any external dependencies.

Working with the Request Body

Request Object Properties

• request.url
• request.method
• request.headers

Recap:

• Request headers, URL, and method are available immediately.
• The request body needs to be fully received.
• Buffers are like small packages of information.
• The "request" object utilizes two interfaces:
  • ReadableStream
  • EventEmitter

Managing HTTP Responses

Creating a Response

• Set status code
• Set headers
• Write data
• Close connection

The Benefits of Streamed Data

• Operate on data one piece at a time
• Memory efficiency
• Time efficiency

The "Error" Class

• error.code
• error.message
• error.stack

Handling File Uploads with Formidable

Benefits

• Fast (~500mb/sec)
• Automatically writes to disk
• Low memory footprint
• Graceful error handling
• Very high test coverage

The "axios" Package

• Well-maintained
• Works client and server-side
• Streaming
• Promise-based API
• Automatic transformation of data into JSON