Getting started with Fuel as a smart contract developer is as simple as:
fuelup
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
Having problems? Visit the installation guide or post your question in our forum .
If you're using VSCode, we recommend installing the Sway extension .
fuelup
installed? If you already have fuelup
installed, run the commands below to make sure you are on the most up-to-date toolchain.
fuelup self update
fuelup update
fuelup default latest
Run the command below to generate a counter contract in Sway:
forc template --template-name counter counter-contract
The contract will be in the src/main.sw
file.
Here is the project that forc
has initialized:
tree counter-contract
counter-contract
├── Forc.toml
└── src
└── main.sw
1 directory, 2 files
forc.toml
is the manifest file (similar to Cargo.toml
for Cargo or package.json
for Node) and defines project metadata such as the project name and dependencies.
To build a contract, move inside the counter-contract
folder:
cd counter-contract
Next, run the forc build
command:
forc build
The forc-wallet
plugin is packaged alongside the default distributed toolchains when installed using fuelup
, so you should already have this installed if you've followed the instructions above.
To initialize a new wallet with forc-wallet
, you can run the command below:
forc wallet new
After typing in a password, be sure to save the mnemonic phrase that is output.
Next, create a new wallet account with:
forc wallet account new
With this, you'll get a fuel address that looks something like this: fuel1efz7lf36w9da9jekqzyuzqsfrqrlzwtt3j3clvemm6eru8fe9nvqj5kar8
.
If you need to list your accounts, you can run the command below:
forc wallet accounts
You can get test funds using the faucet .
To deploy the contract to the testnet, you can run:
forc deploy --testnet
The terminal will ask for the password of the wallet:
Please provide the password of your encrypted wallet vault at "~/.fuel/wallets/.wallet":
Once you have unlocked the wallet, the terminal will show a list of the accounts:
Account 0 -- fuel18caanqmumttfnm8qp0eq7u9yluydxtqmzuaqtzdjlsww5t2jmg9skutn8n:
Asset ID Amount
0000000000000000000000000000000000000000000000000000000000000000 499999940
Just below the list, you'll see this prompt:
Please provide the index of account to use for signing:
Then you'll enter the number of the account of preference and press Y
when prompted to accept the transaction.
Finally, you will get back the network endpoint where the contract was deployed, a Contract ID
and the block where the transaction was signed.
Ready to learn more? Check out the following resources: