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Stylus by Example

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Getting Started

Using the CLI

Basic

Hello WorldFirst AppPrimitive Data TypesVariablesConstantsArraysFunctionsBytes In, Bytes OutMappingArraysEventsErrorsCallSending EtherFunction selectorABI EncodeABI DecodeHashing with keccak256InheritanceImport interfacesExport contract interfaceVM affordancesVerifying SignatureFunctions

Applications

ERC-20ERC-721Time LockMulti CallEnglish AuctionMultiSigVending Machine
Home
basic examples

Hello World

Learn how to use the console output

First App

Simple counter contract that defines a count value in storage that can be incremented

Primitive Data Types

Learn about booleans, integers, and addresses

Variables

Learn about local, state, and global variables

Constants

How to define constant values in your contract

Arrays

A simple arrays example in stylus

Functions

Learn about function parameters, return types, and visibility

Bytes In, Bytes Out

Learn about the basic entrypoint model

Mapping

Learn about the mapping data structure

Arrays

A simple arrays example in stylus

Events

Log public events to the blockchain

Errors

Errors on Stylus Rust smart contracts

Call

Call other contracts on Rust Stylus smart contracts

Sending Ether

Sending Ethers on Stylus Rust smart contracts

Function selector

Compute the encoded function selector of a contract's function

ABI Encode

A simple solidity ABI encode example

ABI Decode

A simple solidity ABI decode example

Hashing with keccak256

A simple solidity keccak256 hashing example

Inheritance

Inheritance in the Stylus Rust SDK

Import interfaces

Import external contract interfaces

Export contract interface

Export the Solidity ABI interface of your Rust contract

VM affordances

Accesing VM affordances in the Stylus Rust SDK

Verifying Signature

An explanation of how to verify a signature signed off chain.

Functions

Learn about function parameters, return types, and visibility