Writing a runtime module

Runtime modules allow us to extend the functionality and features of our blockchain.

They provide interfaces for:

• extrinsics - a way for users to "do things" on the block chain
• storage - the state of the runtime module. Maps are commonly used here to map user accounts to stored data items.
• events - effectively a pub-sub service

Getting started

PL^G is built on top of Substrate, which provide excellent documentation for writing runtime modules. Possibly the best tutorial for writing a runtime module can be found in the:

• Substrate Collectable's Workshop by Shaun Tabrizi.

If you have followed the PL^G Getting Started Guides, you should be able start at #1 Basics.

PL^G Template Module

Once you are confident in writing your own Runtime Module, the template module located at bin/node-template/pallets/template provides all of the necessary scaffolding to get started.