CallGenericWriteFunction
This is an advanced feature and can drain user wallet funds if you interact with a malicious contract. Only link to trusted smart contract authors.
This allows you to call any smart contract function and process the response. It is recommended to first call the
CallGenericWriteFunctionTest
function to get an estimate of the gas fees required for this transaction, which can be displayed to users before the confirm or deny the transaction.This function should be used to query functions that require the users signature, hence it should be invoked only once the user is logged in.
async CallGenericWriteFunction(args, apiKey)
Parameter | Type | Definition |
---|---|---|
args.callback? | Function | Function to callback upon getting result from the smart contract function call
For numerical return values, please refer to the section below.
Structure of result object passed back to the callback function: 1 { 2 "status": 1/0, // success or fail 3 "data": "data", // the transaction object 4 "error": "error", // error string if any 5 } |
args.contractAddress | String | Contract address of the smart contract to be called |
args.functionABI | JSON | |
args.functionName | String | Name of the function to be called |
args.value? | BigNumber | The value to be sent along with the smart contract invocation. Please refer to the section below for more information. |
args.chain | chain (class) | |
args.params | array | Array of objects that will be sent as the arguments to the smart contract function. Please ensure that the order of params matches the contract ABI.
For large numerical inputs, please refer to the section below. |
apiKey | String |
None
Applicable to EVM Chains only
While passing in large numerical values (values above 9007199254740991) in
args.params
, a conversion to BigNumber format needs to be made. You can use the following methods that convert the number to and from the appropriate format:ConvertNumberToBigNumber(number, decimal)
- Use this method while passing in numbers as params to a smart function that requires uint256 numbersConvertBigNumberToNumber(bigNumber, decimal)
- Use this method while converting response values from a smart contract function call (which are in bigNumber format) to a JS Number1
import stakeContractAbi from './contracts/abi/stakeContract.json'
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import {
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CallGenericWriteFunction,
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ConvertNumberToBigNumber,
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chains
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} from '@metafi/metafi-js-package';
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function App() {
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const stakeTokens = () => {
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CallGenericWriteFunction({
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chain: chains.eth,
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contractAddress: "0xF5C9F957705bea56a7e806943f98F7877B995826",
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functionABI: stakeContractAbi.abi,
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functionName: "stake",
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value: ConvertNumberToBigNumber(1, 18),
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params: [],
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callback: (res) => {
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console.log(res);
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}
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},
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"YOUR-API-KEY"
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);
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}
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return (
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<div>
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<button onClick={stakeTokens}>stakeTokens</button>
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</div>
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);
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}
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export default App;
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Last modified 3mo ago