abi.encodeParamsV2ByABI
This method supports encode input params of function's abi into hex string. It can be seen as the reverse of abi.decodeParamsV2ByABI.
Usage
tronWeb.utils.abi.encodeParamsV2ByABI(funAbi, args);
Parameters
Parameter | Description | Data Type |
---|---|---|
funAbi | The abi of a function | object contains inputs array |
args | The input params | array |
Returns
hex string
Example
const functionABI = {
"constant": true,
"outputs": [],
"name": "test",
"inputs": [
{
"name": "r0",
"type": "string[2]"
},
{
"name": "r1",
"type": "uint128"
},
{
"components": [
{
"name": "a",
"type": "bytes"
},
{
"name": "b",
"type": "bytes"
},
{
"name": "c",
"type": "bytes"
}
],
"name": "r2",
"type": "tuple"
},
{
"name": "r3",
"type": "bytes"
}
],
"payable": false,
"stateMutability": "pure",
"type": "function"
};
const args = [
[
'Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui ',
'Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehender'
],
'0xca07f722e5aead62dcccf13578',
[
'0xc66a151d9b0763859a67',
'0x6e1a7e1a868b83dbbb0b9761f85b991f2ab73b5fef04476333b3fadd663d54b94e42a0354d479d0e5a9b44f7cd78bbcd',
'0xf99eddc0917e7c94687bf18c77656aa414cfd8e9b5d0fb34e41b83ca0e1e91eecfe0fc28fe7ccc0244ebfcfd376ff63120c3c7',
],
'0x47666ad90c94e7cb655d9a68acc2d45451e5b94b',
]
const result = tronWeb.utils.abi.encodeParamsV2ByABI(functionABI, args);
// the result would be:
`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`