Download the example code files

You can download the example code files for this book from GitHub at https://github.com/PacktPublishing/Developing-Blockchain-Solutions-in-the-Cloud. If there’s an update to the code, it will be updated in the GitHub repository.

We also have other code bundles from our rich catalog of books and videos available at https://github.com/PacktPublishing/. Check them out!

Conventions used

There are a number of text conventions used throughout this book.

Code in text: Indicates code words in text, database table names, folder names, filenames, file extensions, pathnames, dummy URLs, user input, and Twitter handles. Here is an example: “The PeerNode1AZ and PeerNode2AZ parameters identify the selected AWS region for deployment of the two peer nodes.”

A block of code is set as follows:

response = cloudwatch_client.put_dashboard(
    DashboardName=dashboard_name,
    DashboardBody=json.dumps(dashboard_body)
)

When we wish to draw your attention to a particular part of a code block, the relevant lines or items are set in bold:

cloudwatch_client = boto3.client('cloudwatch')
alarm_name = 'AMB_CPU_Utilization_Alarm'
namespace = 'AWS/ManagedBlockchain'
metric_name = 'CPUUtilization'
threshold = 70.0  # Set your threshold

Any command-line input or output is written as follows:

$ pip install boto3

Bold: Indicates a new term, an important word, or words that you see on screen. For instance, words in menus or dialog boxes appear in bold. Here is an example: “Click on the Private networks tab and Create private network button in the AMB console.”

Tips or important notes

Appear like this.