Book Image

.Go Programming Blueprints - Second Edition

By : Mat Ryer
Book Image

.Go Programming Blueprints - Second Edition

By: Mat Ryer

Overview of this book

Go is the language of the Internet age, and the latest version of Go comes with major architectural changes. Implementation of the language, runtime, and libraries has changed significantly. The compiler and runtime are now written entirely in Go. The garbage collector is now concurrent and provides dramatically lower pause times by running in parallel with other Go routines when possible. This book will show you how to leverage all the latest features and much more. This book shows you how to build powerful systems and drops you into real-world situations. You will learn to develop high quality command-line tools that utilize the powerful shell capabilities and perform well using Go's in-built concurrency mechanisms. Scale, performance, and high availability lie at the heart of our projects, and the lessons learned throughout this book will arm you with everything you need to build world-class solutions. You will get a feel for app deployment using Docker and Google App Engine. Each project could form the basis of a start-up, which means they are directly applicable to modern software markets.
Table of Contents (19 chapters)
Go Programming Blueprints Second Edition
About the Author
About the Reviewer

Running the solution

We built many components over the previous two chapters, and it is now time to see them all working together. This section contains everything you need in order to get all the items running, assuming you have the environment set up properly, as described at the beginning of the previous chapter. This section assumes you have a single folder that contains the four subfolders: api, counter, twittervotes, and web.

Assuming nothing is running, take the following steps (each step in its own terminal window):

  1. In the top-level folder, start the nsqlookupd daemon:

  2. In the same directory, start the nsqd daemon:

    nsqd --lookupd-tcp-address=localhost:4160
  3. Start the MongoDB daemon:

  4. Navigate to the counter folder and build and run it:

    cd counter
    go build -o counter
  5. Navigate to the twittervotes folder and build and run it. Ensure that you have the appropriate environment variables set; otherwise, you will see errors when you run the program:

    cd ../twittervotes...