Get fees information
Get transaction fee information from blockchain.
If you wish to get estimate fee information for a transfer of the native token like ether, the parameters type, from, destination and amount should be passed as follows:
opts.type(string)(required) - type of the transaction. It should beTRANSFERin this case.opts.from(string)(required) - origin or signing address.opts.destination(string)(required) - destination address.opts.protocol(string)(required) - blockchain protocol.
For smart contract method calls, just pass with the additional parameters:
opts.type(string)(required) - type of the transaction. It should beCALL_CONTRACT_METHODin this case.opts.from(string)(required) - origin or signing address.opts.contractAddress(string)(required) - contract address.opts.contractAbi(array)(required) - method ABI to be used.opts.method(string)(required) - method name.opts.params(array) - method parameters.opts.protocol(string)(required) - blockchain protocol.
And for smart contract deployments:
opts.type(string)(required) - type of the transaction. It should beDEPLOY_CONTRACTin this case.opts.from(string)(required) - origin or signing address.opts.contractName(string)(required) - contract name.opts.source(string)(required) - contract source code.opts.params(array) - contract constructor parameters.opts.protocol(string)(required) - blockchain protocol.
const fee = await sdk.transaction.getFee({
type: 'TRANSFER',
from: '0xaaaaaa',
destination: '0xbbbbbbbb',
protocol: 'POLYGON',
})
// Fee information object
// {
// "chainId": 137,
// "estimateValue": "0.000021",
// "unit": "wei",
// "gas": 21000,
// "gasPrice": "1000000000"
// }
Last modified 15d ago