The Fuel toolchain is built on top of the Rust programming language. To install Rust, you can use the rustup tool.
curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh To install the Fuel toolchain, you'll use the fuelup-init script.
This will install forc, forc-client, forc-fmt, forc-lsp, forc-wallet as well as fuel-core in ~/.fuelup/bin.
curl --proto '=https' --tlsv1.2 -sSf https://install.fuel.network/fuelup-init.sh | sh š Run the following command to install the beta-4 toolchain:
fuelup toolchain install beta-4 š Set beta-4 as your default toolchain with the following command:
fuelup default beta-4 For more detailed instructions on installing fuelup, visit the installation guide .
Having problems with this part? Post your question on our forum . To help you as efficiently as possible, include the output of this command in your post:
fuelup show.
Additionally for this guide, ensure you're using Node.js/npm version 18.14.1 or higher (up to node.js 19.0.0). Check your Node.js version with:
node -v Update node.js if your version is below 18.14.1.
Start with a new empty folder and name it fuel-project.
mkdir fuel-project Go into the fuel-project folder:
cd fuel-project Within your terminal start by creating a new sway project called contract:
forc new contract Your project structure generated from the forc command should like this:
tree contractcontract
āāā Forc.toml
āāā src
āāā main.sw
1 directory, 2 filesMove into your contract folder:
cd contract Open up the contract folder in VSCode, and inside the src folder you should see a file called main.sw. This is where you will write your Sway contract.
Since we're creating a brand new contract you can delete everything in this file except for the contract keyword.
contract; The first line of the file is specifically reserved to inform the compiler whether we are writing a contract, script, predicate, or library. To designate the file as a contract, use the contract keyword.