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.Go Programming Blueprints

You're reading from   .Go Programming Blueprints Build real-world, production-ready solutions in Go using cutting-edge technology and techniques

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Product type Paperback
Published in Oct 2016
Publisher Packt
ISBN-13 9781786468949
Length 394 pages
Edition 2nd Edition
Languages
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Author (1):
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Mat Ryer Mat Ryer
Author Profile Icon Mat Ryer
Mat Ryer
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Toc

Table of Contents (13) Chapters Close

Preface 1. Chat Application with Web Sockets FREE CHAPTER 2. Adding User Accounts 3. Three Ways to Implement Profile Pictures 4. Command-Line Tools to Find Domain Names 5. Building Distributed Systems and Working with Flexible Data 6. Exposing Data and Functionality through a RESTful Data Web Service API 7. Random Recommendations Web Service 8. Filesystem Backup 9. Building a Q&A Application for Google App Engine 10. Micro-services in Go with the Go kit Framework 11. Deploying Go Applications Using Docker Appendix. Good Practices for a Stable Go Environment

Understanding the request


The http.Request object gives us access to every piece of information we might need about the underlying HTTP request; therefore, it is worth glancing through the net/http documentation to really get a feel for its power. Examples include, but are not limited to, the following:

  • The URL, path, and query string

  • The HTTP method

  • Cookies

  • Files

  • Form values

  • The referrer and user agent of requester

  • Basic authentication details

  • The request body

  • The header information

There are a few things it doesn't address, which we need to either solve ourselves or look to an external package to help us with. URL path parsing is one such example – while we can access a path (such as /people/1/books/2) as a string via the http.Request type's URL.Path field, there is no easy way to pull out the data encoded in the path, such as the people ID of 1 or the book ID of  2.

Note

A few projects do a good job of addressing this problem, such as Goweb or Gorillz's mux package. They let you map path patterns...

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