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Mastering Go – Third Edition

You're reading from   Mastering Go – Third Edition Harness the power of Go to build professional utilities and concurrent servers and services

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Product type Paperback
Published in Aug 2021
Publisher Packt
ISBN-13 9781801079310
Length 682 pages
Edition 3rd Edition
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Author (1):
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Mihalis Tsoukalos Mihalis Tsoukalos
Author Profile Icon Mihalis Tsoukalos
Mihalis Tsoukalos
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Table of Contents (17) Chapters Close

Preface 1. A Quick Introduction to Go 2. Basic Go Data Types FREE CHAPTER 3. Composite Data Types 4. Reflection and Interfaces 5. Go Packages and Functions 6. Telling a UNIX System What to Do 7. Go Concurrency 8. Building Web Services 9. Working with TCP/IP and WebSocket 10. Working with REST APIs 11. Code Testing and Profiling 12. Working with gRPC 13. Go Generics 14. Other Books You May Enjoy
15. Index
Appendix A – Go Garbage Collector

Building Web Services

The core subject of this chapter is working with HTTP using the net/http package—remember that all web services require a web server in order to operate. Additionally, in this chapter, we are going to convert the phone book application into a web application that accepts HTTP connections and create a command-line client to work with it. Lastly, we'll illustrate how to create an FTP (File Transfer Protocol) server and how to export metrics from Go applications to Prometheus and work with the runtime/metrics package to get implementation-defined metrics exported by the Go runtime.

In more detail, this chapter covers:

  • The net/http package
  • Creating a web server
  • Updating the phone book application
  • Exposing metrics to Prometheus
  • Developing web clients
  • Creating a client for the phone book service
  • Creating file servers
  • Timing out HTTP connections
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