CallGenericReadFunction

Description
This allows you to call any read-only smart contract function that does not require the user to sign the transaction. It can be invoked even before the user is logged in.
Signature
async CallGenericReadFunction(args, apiKey)
Arguments
Parameter
Type
Definition
args.contractAddress
String
Contract address of the smart contract to be called
args.functionABI
JSON
The JSON object for the smart contract ABI​
args.functionName
String
Name of the function to be called
args.chain
chain (class)
Which chain the smart contract is deployed on. Pick a chain from the supported chains list​
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
The API Key generated from the Developer Portal​
Return Value
Object returned from smart contract.
{
    "statusCode": 1/0,
    "data": "data" // the data returned from the smart contract function
    "error": "error" // error if any
}
Handling Large Numerical Values
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 numbers
ConvertBigNumberToNumber(bigNumber, decimal) - Use this method while converting response values from a smart contract function call (which are in bigNumber format) to a JS Number
Example
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import { 
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    CallGenericReadFunction, 
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    chains 
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} from '@metafi/metafi-js-sdk';
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import stakeContractAbi from '../contracts/abi/stakeContract.json';
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​
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function App() {
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​
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    const getStakedBalance = async () => {
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        let result = await CallGenericReadFunction({
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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: "getStakedAmount",
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            params: ["0x40562Cf2E90f23b3969d782B5d8f134A77069b49"],               
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        });
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        console.log(
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            'staked value is: ', 
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            ConvertBigNumberToNumber(result.data, 18),
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        );
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    }
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    return (
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        <>
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           <button onClick={getStakedBalance}>Get User Staked Balance</button>
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        </>
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    );
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};

Parameter	Type	Definition
`args.contractAddress`	String	Contract address of the smart contract to be called
`args.functionABI`	JSON	The JSON object for the smart contract ABI
`args.functionName`	String	Name of the function to be called
`args.chain`	chain (class)	Which chain the smart contract is deployed on. Pick a chain from the supported chains list
`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	The API Key generated from the Developer Portal

TransferTokens

CallGenericWriteFunction

Last modified 3mo ago