Explicit signature method with override argument

[iboxgithub]

Ethers Version

5.7.1

Search Terms

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Describe the Problem

I followed the instructions here: #950 to execute my safeTransferFrom method but I struggle to pass on the gasLimit and gasPrice args. If I understood properly, I should only send bytes32 to not get an arrayify issue but I don't get how to do that :(

let args = {
  gasLimit: 500000, 
  gasPrice: 50000000000, 
}
const nftTxn = await contract["safeTransferFrom(address,address,uint256,bytes)"](_from, _to, _tokenId, args);

how am I supposed to convert args?

thanks for your help!

Code Snippet

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Contract ABI

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Errors

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Environment

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Environment (Other)

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[ricmoo]

Your method takes in 4 parameters, but you are only passing in 3 and the overrides. You can the data in anyway you would like; it doesn’t need to be a bytes32 and it can be a hexstring, array or Uint8Array.

[iboxgithub]

thanks, I still have an issue though

Error: transaction failed [ See: https://links.ethers.org/v5-errors-CALL_EXCEPTION ] (transactionHash="0xd9bdb6eb5722c8cb049d88a5e775de83c43fdb399d3887ba68e9bfa7c0eeacb2", transaction={"type":2,"chainId":80001,"nonce":49,"maxPriorityFeePerGas":{"type":"BigNumber","hex":"0x0ba43b7400"},"maxFeePerGas":{"type":"BigNumber","hex":"0x0ba43b7400"},"gasPrice":null,"gasLimit":{"type":"BigNumber","hex":"0x07a120"},"to":"0x1BcdC323668bE7CD8A8a5E5b1b3241E023E63c7F","value":{"type":"BigNumber","hex":"0x00"},"data":"0xb88d4fde00000000000000000000000095fc0970770cfdbf833da3e28f6ec517bdba46430000000000000000000000005f559ba974fe01935cc53bdaeb242f4fe19dd99b000000000000000000000000000000000000000000000000000000000000002600000000000000000000000000000000000000000000000000000000000000800000000000000000000000000000000000000000000000000000000000000000","accessList":[],"hash":"0xd9bdb6eb5722c8cb049d88a5e775de83c43fdb399d3887ba68e9bfa7c0eeacb2","v":1,"r":"0xce0a88d30a4758d6a90e73145d99391277cbe2041cbf516c5af6cdb1bf52ef39","s":"0x3a5b743ac92fc3b45dfb76d44d0b5fc660ecdac90be6093ac0386883159843e0","from":"0x95fC0970770cFDbf833dA3e28F6EC517BDba4643","confirmations":0}, receipt={"to":"0x1BcdC323668bE7CD8A8a5E5b1b3241E023E63c7F","from":"0x95fC0970770cFDbf833dA3e28F6EC517BDba4643","contractAddress":null,"transactionIndex":0,"gasUsed":{"type":"BigNumber","hex":"0x7739"},"logsBloom":"0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000040000000000008000000000000080000000000000000000000000000000000000000000800000000000000000000100000000404000000000000000000000000000000000000000000000000080000000000000000000000000000000000000000000000000000000000080000000000000000000200000000000000000000000000000000000000000000000000000000000004000000000000000000001000000000000000000000000000000100040000000000000000000000000000000000000000000000000000000000000000000100000","blockHash":"0x0f847d148b0a2c45c1c18774ce9afa3a68612d7cee7855ecdbdb27f517ceba07","transactionHash":"0xd9bdb6eb5722c8cb049d88a5e775de83c43fdb399d3887ba68e9bfa7c0eeacb2","logs":[{"transactionIndex":0,"blockNumber":28370928,"transactionHash":"0xd9bdb6eb5722c8cb049d88a5e775de83c43fdb399d3887ba68e9bfa7c0eeacb2","address":"0x0000000000000000000000000000000000001010","topics":["0x4dfe1bbbcf077ddc3e01291eea2d5c70c2b422b415d95645b9adcfd678cb1d63","0x0000000000000000000000000000000000000000000000000000000000001010","0x00000000000000000000000095fc0970770cfdbf833da3e28f6ec517bdba4643","0x000000000000000000000000be188d6641e8b680743a4815dfa0f6208038960f"],"data":"0x00000000000000000000000000000000000000000000000000056bef341d2f6f00000000000000000000000000000000000000000000000014a495dfc27180670000000000000000000000000000000000000000000025c8ad22fd6ad3910ddb000000000000000000000000000000000000000000000000149f29f08e5450f80000000000000000000000000000000000000000000025c8ad28695a07ae3d4a","logIndex":0,"blockHash":"0x0f847d148b0a2c45c1c18774ce9afa3a68612d7cee7855ecdbdb27f517ceba07"}],"blockNumber":28370928,"confirmations":1,"cumulativeGasUsed":{"type":"BigNumber","hex":"0x7739"},"effectiveGasPrice":{"type":"BigNumber","hex":"0x0ba43b7400"},"status":0,"type":2,"byzantium":true}, code=CALL_EXCEPTION, version=providers/5.7.1)
at Logger.makeError (/workspace/node_modules/@ethersproject/logger/lib/index.js:238:21)

this is my code:

const nftTxn = await contract[
    "safeTransferFrom(address,address,uint256,bytes)"
  ](_from, _to, _tokenId, "0x", {
    gasLimit: 500000, 
    gasPrice: 50000000000, 
  });

[iboxgithub]

Just saw that on PolygonScan sorry -> how could I deduce this error from the error above returned in ethers?

[zemse]

If you do not pass a gasLimit, ethers will try to estimateGas and nodes include the revert data in the estimation so you can get the error in your code.

However passing a gas limit, ethers would sendTransaction and the revert reasons are not included in the receipt hence this way ethers can't tell you the error..

[iboxgithub]

ok, so how does PolygonScan do it?

[zemse]

ok, so how does PolygonScan do it?

They use trace API to get all the low-level details of the transaction and store them in their database.

In hardhat network as well a lot of trace info is lost, so I've started hardhat-tracer plugin through which I aim to get some more info for hardhat-network transactions and if you have access to an archive node of a live networks then it tries to give trace info for that as well using trace task.

If you want the revert msg before doing tx, then you need to do estimate gas, then the node should provide you revert data without any plugin or archive/trace node. If you want revert msg after doing a tx, you may need an archive node and you can try using provider.call with those specific parameters in the original tx and the block tag (this method may not simulate exact simulation since the execution would take place at the end of block).