I'm a developer who wants to call the ink contract's function from the outside. I already know that ink contract supports cross-contract. But what I want to do is call the function using subxt or node_runtime crate or etc. I don't want to use polkadot js, but want to implement all features in rust and test it. (rust version of web3.js and polkadot.js)
I tried to implement this by using this function: https://github.com/paritytech/subxt/blob/master/testing/integration-tests/src/frame/contracts.rs#L136 but I don't know how to use this function in testnet(rococo or Shibuya) or my local node.
And I also tried to use node_runtime and many other things, but I couldn't make it.
Thank you for any support.