Estimate gas of overloaded functions

[iners-max]

Hi, I have been using the estimateGas function to estimate gas. However, I can't find any documentation to estimate gas of overloaded functions.

For example, I have 2 overloaded functions in my contract:

{
   "inputs": [
     {
       "internalType": "address",
       "name": "from",
       "type": "address"
     },
     {
       "internalType": "address",
       "name": "to",
       "type": "address"
     },
     {
       "internalType": "uint256",
       "name": "tokenId",
       "type": "uint256"
     }
   ],
   "name": "safeTransferFrom",
   "outputs": [],
   "stateMutability": "nonpayable",
   "type": "function"
 },
 {
   "inputs": [
     {
       "internalType": "address",
       "name": "from",
       "type": "address"
     },
     {
       "internalType": "address",
       "name": "to",
       "type": "address"
     },
     {
       "internalType": "uint256",
       "name": "tokenId",
       "type": "uint256"
     },
     {
       "internalType": "bytes",
       "name": "_data",
       "type": "bytes"
     }
   ],
   "name": "safeTransferFrom",
   "outputs": [],
   "stateMutability": "nonpayable",
   "type": "function"
 },

[ricmoo]

In v5, you must specify the fully-qualified name, so for example, contract["safeTransferFrom(address,address,uint256)"].estimateGas(…), although I generally recommend trimming unused fragments from an ABI to make code more readable.

In v6 you can use the Typed API, which I’ll get more docs out on soon. :)

[iners-max]

Thanks for the quick reply Richard. I have tried the following but I still got an error

let estimation = await contract["safeTransferFrom(address,address,uint256)"].estimateGas(from, to, tokenId);

TypeError: contract.safeTransferFrom(address,address,uint256).estimateGas is not a function

I am using 5.6.2

[ricmoo]

Sorry. I have that backwards. I was thinking of v6, you want contract.estimateGas["safeTransferFrom(address,address,uint256)"](addr0, addr1, amount).

Let me know if that works. :)

[iners-max]

Thank you Richard, confirmed this is working

let estimation = await contract.estimateGas["safeTransferFrom(address,address,uint256)"](from, to, tokenId);

[Holybasil]

how could I use contract.estimateGas in v6?

[Holybasil]

same arguments in v5

[ricmoo]

You can use contract.functionName.estimateGas(…args). See the migration guide for more info. :)

[Holybasil]

thank you~

[julio899]

Here I share this code example in v6.8.1 I hope can be help us

          const id = 10; // idNFT
          const call_fee = await contract.COST_FEE_CLAIM()
          // In this case my function claim need 1 argument (id)
         // The second argument is the cost of fee in this case
          const estimateGas = await contract.claim.estimateGas(id, {
            value: call_fee.toString()
          })

          const claimResp = await contract.claim(id, {
            value: call_fee.toString(),
            gasLimit: estimateGas
          })
          await claimResp.wait(1)
          console.log({ claimResp })