msgValue problem

Moralis General
#1

Hello everyone,
is there a way we can send msgValue in runcontractFunction in eth instead of wei or gwei. In my smart contract it expects to send value in eth

issue3
issue31829×482 29.7 KB

but when i am sending it from msgValue function it is going in form of wei and it is giving unexpected result.
when i am send 0.2 number for eth. it is transforming into it’s wei form that is 2e17 something and this according to my contract means that i am sending 2e17 eth which i don’t have in my account so reverting with not suffiecient balance in account.
please help.

#2

Did you try with an exact value in wei hardcoded to see what happens?

Is that a read only function that uses msgValue?

#3

Yes i tried using manual value also but not working.
It’s not readonly.

#4 
Error: cannot estimate gas; transaction may fail or may require manual gas limit [ See: https://links.ethers.org/v5-errors-UNPREDICTABLE_GAS_LIMIT ] (reason="execution reverted", method="estimateGas", transaction={"from":"0x6A00422C67579157C48A574E7064c2B856fc14f3","to":"0xD6a31697eefE202fFc673BbDf58d2f16F168910b","value":{"type":"BigNumber","hex":"0x02c68af0bb140000"},"data":"0x681a1a160000000000000000000000004450c8e799d036de36e9ec096c2d14a33abc96f7000000000000000000000000326c977e6efc84e512bb9c30f76e30c160ed06fb","accessList":null}, error={"code":-32603,"message":"execution reverted","data":{"originalError":{"code":3,"data":"0xb8c67e600000000000000000000000000000000000000000000000026abc44bafddc9ab0","message":"execution reverted"}}}, code=UNPREDICTABLE_GAS_LIMIT, version=providers/5.7.0)
    at Logger.makeError (index.js?dd68:224:1)
    at Logger.throwError (index.js?dd68:233:1)
    at checkError (json-rpc-provider.js?8679:76:1)
    at Web3Provider.eval (json-rpc-provider.js?8679:575:1)
    at Generator.throw (<anonymous>)
    at rejected (json-rpc-provider.js?8679:6:42)

is the error that i am getting

#5

You can use web3 or ethers directly to see if it works.

#6

Yes i also wanted to use ethers js. But when i am installing it is also giving an error like ./cache or something file missing. So i had to remove it.

#7

What type of application it is? Vanilla js, react, next js, something else

#8

i am using nextjs for the application

#9

It should be possible to make it work with web3 or ethers directly

#10 
  const { runContractFunction: swapWethToToken } = useWeb3Contract({
    contractAddress: DEX_CONTRACT_ADDRESS,
    abi: dexAbi,
    functionName: "swapWETHToToken",
    msgValue:
      fromValue != 0 &&
      Moralis.Units.FromWei(
        BigNumber(fromValue).multipliedBy(Number(roundOff)).toFixed().toString()
      ),
    params: {
      from: contractAddresses[activeFromToken],
      to: contractAddresses[activeToToken],
    },
  });

The problem is when i am sending 0.2 as msgValue it is saying that it is not a BigNumber. Is there a way to go past this check :thinking:.

#11

try to add some logging to see what you have there.
there are also Utils functions that make that transformation from eth to Wei and the other way around

#12

newP
newP520×905 30.3 KB

image

0.1 in wei form what i am getting
The same thing is happening when i am doing it with code.

#13

what is the expected value?

#14

like if i want to provide 0.2 in eth as liquidity it should be also be seen 0.2 eth in metamask. Since 0.2 is not a bigNumber i have to transform it into wei form or non float form which is giving the same result mentioned above.

#15

What is the value of fromValue here?
What does that multiplication do?

#16

fromValue is the value from the input tag.
if fromValue = 2
roundOff = 10e18
answer = 2e18
toFixed is transforming 2e18 into 2000000000000000000 form.

I was only using this line

BigNumber(fromValue).multipliedBy(Number(roundOff)).toFixed().toString()

i used Moralis.Units.FromWei to check if it is making any difference. But no.

Also i am using bigNumber.js library for the above calculation.

#17

can you give an example for input value and expected output value?

#18

newP3
newP3870×649 19.6 KB

in the above transaction i want to swap 1.2 eth. And i am using above mentioned formula to calculate the wei form of it(12000000000000000000). So my function should understand that i am sending eth in wei not in ether itself. But it is failing to do so and showing that i am trying to send 12000000000000000000 ethers not wei.

#19

ok, for your code, what you sent it as input value and what is the expected output?

#20

same that mentioned above.
1.2 eth should show 1.2 eth
not 1200000… eth
my input value is 1.2 eth and output value in 1200000… eth.