feat: multicall cairo precompile

[obatirou]

Feature Request

Create a precompile multicall that receive an array of (contract address, selector, calldata) and execute those starknet calls. It can only be called through a normal call and not delegatecall. This will allow to craft directly in the frontend starknet transaction with starknet sdk leading to a generic integration of every starknet contract

Steps:

• create precompile.
• Add test:
  • deploy a starknet contract and craft a starknet transaction: a simple one would to query the balance of several starknet tokens or a approve of token
  • craft a multicalll transaction to the multicall contract and execute it

[Eikix]

frontend starknet transaction with starknet sdk

will this specific contract allow this? since its solidity im not sure it can be called with starknet SDK yet

[enitrat]

will this specific contract allow this? since its solidity im not sure it can be called with starknet SDK yet

Starknet SDK crafts the calldata and then your frontend invokes the ether provider with this calldata