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in web3.js , to define a new contract

new web3.eth.Contract(jsonInterface[, address][, options])

so what is jsonInterface and where can i find it?
Thank you for reading :)

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It's the ABI(Application Binary Interface). You can compile your source code from remix. On the compilation screen, you'll see a button to get the ABI. Click it to copy the ABI. That's what you need.

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