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Ethereum like smart contracts on Plasm Network. |
Plasm Network also supports solidity. Solidity is a smart contract language mainly used on Ethereum. If you have already built applications by using Solidity, you can also deploy the contracts on Plasm Network.
In this tutorial, we will use the Solang compiler, a compiler for solidity language developed by Hyperledger Labs. Let's install the compiler using the original instruction below.
{% embed url="https://solang.readthedocs.io/en/latest/installing.html" %}
Or using the following cargo command:
sudo apt install llvm openssl libxml2-dev
cargo install --git https://github.com/hyperledger-labs/solang --tag m8
The solang binary should be available in your environment.
{% hint style="info" %} Make sure you installed all dependencies you need. You can check them from here. {% endhint %}
You can write any solidity contracts just like the development on Ethereum. Since this is a tutorial, we will use a flipper contract which is available below.
{% embed url="https://github.com/hyperledger-labs/solang/blob/master/examples/flipper.sol" %}
Let's compile it using substrate target to make it compatible with Plasm Network.
wget https://raw.githubusercontent.com/hyperledger-labs/solang/master/examples/flipper.sol
solang flipper.sol
As a result, two files should be available in your current directory : flipper.wasm (optimized WASM binary) and flipper.json (smart contract metadata).
Let's deploy the compiled flipper.wasm and flipper.json using our standard Plasm Portal UI.
The next step is to create an instance of the uploaded smart contract WASM code.
After making the instance, we can interact with the smart contract using the UI portal just like an ink! smart contract described in the previous chapter.
More examples are available in the Solang repository:
{% embed url="https://github.com/hyperledger-labs/solang/tree/master/examples" %}
Have fun and good luck!
Any questions? Feel free to ask us on our Discord tech channel.