Conventions used

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

CodeInText: 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: "Install Node.js, npm, and Python."

A block of code is set as follows:

type Chaincode interface {
    Init (stub ChaincodeStubInterface) pb.Response
    Invoke (stub ChaincodeStubInterface) pb.Response
}

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

  $ sudo apt-get update

Bold: Indicates a new term, an important word, or words that you see on screen. For example, words in menus or dialog boxes appear in the text like this. Here is an example: "Click on the Query Chaincode button."