AlexD10S/smart-contracts-ink

ink! Smart Contracts

Repository for learning purposes following the Substrate tutorial: https://docs.substrate.io/tutorials/smart-contracts to develop Smart Contracts using the ink! language.

Move to the folder of the Smart contract you want to test. Run the tests:

cargo +nightly test

Build the WebAssembly for the contract:

cargo +nightly contract build

To deploy lthe SCs locally, download a precompiled Substrate Contracts Node:

cargo install contracts-node --git https://github.com/paritytech/substrate-contracts-node.git --tag <latest-tag> --force --locked

And run:

substrate-contracts-node --dev

Then deploy them using the Contracts UI from Substrate: https://contracts-ui.substrate.io/ uploading the .contract file generated after the build.

Deploy the contract with CLI:

cargo contract instantiate --constructor new --args "false" --suri //Alice --salt $(date +%s)

Interact with the SC using cargo-contract Example:

cargo contract call --contract SC-ADDRESS --message flip --suri //Alice 
cargo contract call --contract SC-ADDRESS --message get --suri //Alice --dry-run

Troubleshooting

ERROR: cargo-contract cannot build using the "stable" channel. Switch to nightly. See https://github.com/paritytech/cargo-contract#build-requires-the-nightly-toolchain

Run

rustup default nightly

TODO

• Cross_contract_flipper has no unit test (not support yet), check: https://substrate.stackexchange.com/questions/28/how-to-test-cross-contract-ink-contracts