sway-contract-upgrade-example

Simple example of how to upgrade contracts in Sway

1. Add proxy functionality to Forc.toml

[proxy]
enabled = true

2. Deploy the contract using forc deploy

forc deploy --mainnet

You will notice an address in your forc.toml under [proxy] file after the deployment, this is your proxy contract address.

[proxy]
enabled = true
address = "0x33f45975f14434a7950446ce9c4cbbc64e5d3ffb5c5a8e7a9dce3f05ae962442"

4. Go to Sway-Playground and paste the abi in out/debug/sway-contract-upgrade-example-abi.json as well as the address to interact with get_version function and verify that the number is 7.

3. Change line 3 in src/main.sw to a new number

const VERSION: u8 = 2u8;

4. Redeploy the contract using forc deploy again

forc deploy --mainnet

5. Go back to Sway-Playground and verify that the number is now your new number.

6. Congratulations! You just upgraded your first contract in Sway!