Icon HelpCircleForumIcon Link

⌘K

Icon HelpCircleForumIcon Link
Guides /
Intro to Predicates /
Prerequisites

Icon LinkPrerequisites

Icon LinkInstallation

To install the Fuel toolchain, you can 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 https://install.fuel.network | sh
Icon InfoCircle
Having problems? Visit the installation guide or post your question in our forum Icon Link.
If you're using VSCode, we recommend installing the Sway extension Icon Link.
Additionally for this guide, ensure you're using Node.js/npm version 18.18.2 || ^20.0.0. You can check your Node.js version with: 
node -v

Icon LinkProject Setup

Start with a new empty folder and name it multisig-predicate. 
mkdir multisig-predicate
Go into the multisig-predicate folder: 
cd multisig-predicate
Within your terminal start by creating a new sway project called predicate: 
forc new --predicate predicate
Icon InfoCircle
Tip: Notice the --predicate flag, which tells forc that you want to create a project based on a predicate, rather than the default contract program type.
Your project structure generated from the forc command should like this: 
tree predicate
predicate
├── Forc.toml
└── src
    └── main.sw

1 directory, 2 files
Move into your predicate folder: 
cd predicate
In VSCode, navigate to the src folder within the predicate folder, where you will find a file named main.sw. This is the file where your Sway predicate will be written.