MoralisError [Moralis SDK Core Error]: [C0006] Request failed, Bad Request(400): chain must be a valid enum value

Technical Issue Reporting
#1

It was working perfectly fine, then I opened this project a month later, and now it’s throwing me an error that “chain must be a valid enum value”.

return new CoreError({
                   ^

MoralisError [Moralis SDK Core Error]: [C0006] Request failed, Bad Request(400): chain must be a valid enum value        
    at RequestController.makeError (C:\Users\yuvir\Desktop\DEV\WEB 3.0\PayMate\server\node_modules\@moralisweb3\common-co
re\lib\cjs\index.cjs:1224:20)
    at RequestController.<anonymous>

I am using the latest SDK “^2.26.1” .
I’ve rechecked my moralis API_KEY a thousand times.
Can’t seem to understand what’s the issue here.

app.get("/getNameAndBalance", async (req, res) => {  
  const { userAddress } = req.query;

  const response = await Moralis.EvmApi.utils.runContractFunction({
    chain: "0x13881", // hex index for the mumbai testnet
    address: "smart-contract-address", //smart contract address
    functionName: "getMyName", 
    abi: ABI,
    params: { _user: userAddress },
  });

This is what I’m trying to do.

#2

this is not working any more because Mumbai testnet was removed, it is not longer supported as an evm chain, new chains replaced it for polygon/mumbai testnet

#3

Oh, Okay. Thank you very much for responding.
I am new to blockchain. Should I migrate to Amoy now or is there a better one I should consider?

#4

you can try Amoy chain now

#5

Okay, so I have deployed my contract to Amoy now and verified it.
But whenever I call my getNameandBalance route it throws back a long object and crashes the server. The end of the object looks something like this.

          ],
          'user-agent': [ 'User-Agent', 'axios/1.6.8' ],
          'content-length': [ 'Content-Length', '2128' ],
          'accept-encoding': [ 'Accept-Encoding', 'gzip, compress, deflate, br' ],
          host: [ 'Host', 'deep-index.moralis.io' ]
        },
        [Symbol(errored)]: null,
        [Symbol(kHighWaterMark)]: 16384,
        [Symbol(kRejectNonStandardBodyWrites)]: false,
        [Symbol(kUniqueHeaders)]: null
      },
      data: { message: 'Invalid chain' }
    }
  }
}

I am using amoy chain id and everything but still encountering this issue.

app.get("/getNameAndBalance", async (req, res) => {  
  const { userAddress } = req.query;

  const response = await Moralis.EvmApi.utils.runContractFunction({
    chain: "0x13882", // hex index for the amoy testnet
    address: "smart-contract-address", //smart contract address
    functionName: "getMyName", 
    abi: ABI,
    params: { _user: userAddress },
  });
#6

meanwhile, we removed that runContractFunction from the list of supported apis.

You could do it with a rpc node request, to call a function on a contract