Extending the “Hello World” example

The next tutorial in the series extends the “Hello World” program from the previous example. Rather than just hold a single greeting, the smart contract is upgraded to hold multiple greetings and cycle through them as greetings are requested. To accommodate this, the smart contract is extended with a new method allowing users of the smart contract to add additional greetings.

You can find the source code for the “Hello World 2” smart contract examples in the Stratis.SmartContracts.Examples.HelloWord project, which is included in the LSC-tutorial branch of the Stratis Full Node. For this tutorial, you will study, build, and deploy HelloWorld2.cs.

Contents:

• An overview of the code
• Using a dictionary approach
• Building and deploying the HelloWorld2 contract
• Calling a method on the contract for the first time
• Adding multiple greetings to the smart contract
• Cycling through the greetings
• What happens if SayHello() is called by a different node?