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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

Exercises

  • Use the functionality of byCharacter.go, byLine.go, and byWord.go in order to create a simplified version of the wc(1) UNIX utility.
  • Create a full version of the wc(1) UNIX utility using the viper package for processing command-line options.
  • Create a full version of the wc(1) UNIX utility using commands instead of command-line options with the help of the cobra package.
  • Modify JSONstreams.go to accept user data or data from a file.
  • Modify embedFiles.go in order to save the binary file at a user-selected location.
  • Modify ioFS.go in order to get the desired command as well as the search string as a command-line argument.
  • Make ioFS.go a cobra project.
  • The byLine.go utility uses ReadString('\n') to read the input file. Modify the code to use Scanner (https://golang.org/pkg/bufio/#Scanner) for reading.
  • Similarly, byWord.go uses ReadString('\n') to read the input file—modify the code to use Scanner...
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