developer-docs.md

Developer Documentation

Makefile

• make iex-0 to run interactive node with preconfigured ports and directories
• make iex-1, make iex-2, make iex-3 to run configured nodes to be run in parallel
• make clean to clean project folders
• make clean-deps to clean project folders and compile deps
• make clean-deps-compile to clean project and compile deps and project
• make killall to kill all running elixir/erlang processes
• make aevm-test-deps to clone ethereum vm tests locally

Debugging MerklePatriciaTree

To debug print the content tree |> PatriciaMerkleTree.print_debug() can be used

Building custom child transactions

To build a custom transaction you need to follow few simple steps:

• Make your own transaction module
• Create your custom transaction structure
• Override the Transaction Behaviour callbacks
• Add your transaction handling module to a Governance constant module, to the constant, which holds a list of known transactions, called @known_tx_types
• Write all your specific functions and checks inside your new Transaction module

All custom transactions are children to the DataTx Transaction that wraps them inside. The DataTx structure hold:

• The name of your transaction type that should be you Transaction Module name
• The payload that will hold your custom transaction structure
• sender, fee and nonce