CODEWITHSUNDEEP
javascriptreactjssoliditymetamaskerc20
ksd030687d
ksd030687d

Reputation: 308

.allowance method for importing erc20 token to metamask

I was trying out the .allowance method to import erc20 token in my case PKS to metamask. The issue is I don't get the metamask popup for importing the erc20 token but I get the balances PKS token for the particular account without importing .

need this output before fetching balances : enter image description here Is there any way to adjust the code it should first ask for import and then fetch the balance.

here's my code so far and I am calling getErcBal in useEffect :

async function getErcBal(){
        var WEB3 = await connection();
        var currAddr = WEB3.address;
        var web3 = WEB3.web3Conn;
      
        if(WEB3.isMeta){
          setuseraddress(currAddr);
          setContractAdr(dethContractAddr);
            if(dethContractAddr){
                var dethContract = new web3.eth.Contract(DETH, dethContractAddr);
                var getAllowance = await dethContract.methods
                                    .allowance(currAddr, dethContractAddr)
                                    .call();
                }
                var tokenDethBln = await dethContract.methods.balanceOf(currAddr).call();
            }
            var PksVal = 0;
              if (tokenDethBln && tokenDethBln > 0) {
                PksVal = tokenDethBln / 1000000000000000000;
              }
            setPksbalance(PksVal.toFixed(4))
         
          }
      
      }

Upvotes: 0

Views: 426

Answers (2)

Yilmaz
Yilmaz

Reputation: 49261

If you want to import token to metamask, choose the account and you will see the import token option:

enter image description here

Get the ERC20 token address and paste it to the field. It will automatically populate the "symbol" field:

enter image description here

Click on "Add Custom Token" then you will get next screen:

enter image description here

click on "Import Tokens"

Upvotes: 0

MANISH SHARMA
MANISH SHARMA

Reputation: 11

Allowance method is not for importing funds. Allowance function uses two addresses, first one is owner address, and second one is spender address. If you previously approved someone to use your funds then it will return some value, otherwise it will give zero.

Upvotes: 1

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