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For a project of mine I would like to run a standalone new EVM with precise specifications. After having instantiated and set up the vm, I have a deployed a test contract using the vm « Create » function.

However I don’t understand how to invoke specific methods of the contract using go-ethereum.

I thought I could use the Call and CallCode functions but they don’t indicate any argument concerning the methods except the input byte array.

Any help really appreciated,

Thanks

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The method is carried in the input bytes as per this the yellow paper. See here: http://gavwood.com/paper.pdf.

Much more information is here: https://github.com/ethereum/wiki/wiki/Ethereum-Contract-ABI. The thing you're looking for is called the function selector in that page.

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  • Hello, thanks for your very useful response. I was able to find an example of your explanation in the runtime_test.go
    – Solerus
    Commented Oct 15, 2018 at 16:03

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