CosmWasm overview

Safrochain runs CosmWasm via the wasm module. App developers write contracts in Rust, compile to .wasm, and call them from CosmJS or REST.

Rust vs Go

Rust builds CosmWasm contracts. Go builds safrochaind chain modules (tokenfactory, feepay). App developers use Rust for contracts; Go docs live under Infra.

Lifecycle

Step	Who	Tool
Store code	Deployer	safrochaind tx wasm store
Instantiate	Deployer	instantiate / instantiate2
Execute	Users / dApps	MsgExecuteContract
Query	Anyone	REST smart query

Real on-chain examples

Contract	Use
SafHandle registry	@name → address
FeePay	Sponsored transaction fees
Clock	Time-based contract logic

Curriculum

1. Build in Rust
2. Deploy and manage
3. Interact from apps
4. Local dev and testing