Ethereum Unity3D Boilerplate Questions

[0xprof]

hey, you can check this out for calling smart contract functions

GitHub - 0xPr0f/Moralis-Unity: The Moralis Unity SDK in full action, and code... - sending custom token with smart contract function (with and without gas)

[0xprof]

you may also have incomplete abi

[Rico]

Thanks, I’ll check it out.

[Shivam]

Hello, did you get time to check this ?
Is GetNFTsForContract() working for public address : 0xB65f5Ac5eAD9598f7Ec61c8C89033B970dA7B77D
contract address : 0x81437356a6143f7c344d8569a09607e294ef17a4
on rinkeby testnet on Android build ?

[Rico]

This the one I’m using;

[
	{
		"inputs": [],
		"name": "getCount",
		"outputs": [
			{
				"internalType": "uint256",
				"name": "",
				"type": "uint256"
			}
		],
		"stateMutability": "view",
		"type": "function"
	},
	{
		"inputs": [],
		"name": "increment",
		"outputs": [],
		"stateMutability": "nonpayable",
		"type": "function"
	}
]

[Silvine]

We are using the latest release (v1.0.8) and this is still happening.

PS: It happens with certain accounts but not all.

[Silvine]

The login flow issue is fixed but the error still persists. @dgoodrich

[Rico]

Hello, after I tried this:

    public async UniTask RunContract()
    {
        String ABI = "[{ 'inputs': [],'name': 'getCount','outputs': [{ 'internalType': 'uint256','name': '','type': 'uint256'}],'stateMutability': 'view','type': 'function'},{ 'inputs': [],'name': 'increment','outputs': [],'stateMutability': 'nonpayable','type': 'function'}]";


        MoralisInterface.InsertContractInstance("Test", ABI, "mumbai", "0xc1c1dD559161A527305B276c4C9e156E887368Ce");
        Function f = MoralisInterface.EvmContractFunctionInstance("Test", "mumbai", "getCount");
        //string playerAddress = "0xE1E891fE77ea200eaE62c9C9B3395443cc6ed7bE";
        string result = await f.SendTransactionAsync(addr);
        print(result);
    }

It ran and returned:

RpcResponseException: Internal JSON-RPC error.: eth_sendTransaction
Nethereum.JsonRpc.Client.ClientBase.HandleRpcError (Nethereum.JsonRpc.Client.RpcMessages.RpcResponseMessage response, System.String reqMsg) (at Assets/MoralisWeb3ApiSdk/Nethereum/Nethereum.JsonRpc.Client/ClientBase.cs:40)
Nethereum.JsonRpc.Client.ClientBase+<SendInnerRequestAsync>d__11`1[T].MoveNext () (at Assets/MoralisWeb3ApiSdk/Nethereum/Nethereum.JsonRpc.Client/ClientBase.cs:46)
--- End of stack trace from previous location where exception was thrown ---
System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw () (at <695d1cc93cca45069c528c15c9fdd749>:0)
System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess (System.Threading.Tasks.Task task) (at <695d1cc93cca45069c528c15c9fdd749>:0)
System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification (System.Threading.Tasks.Task task) (at <695d1cc93cca45069c528c15c9fdd749>:0)
System.Runtime.CompilerServices.TaskAwaiter.ValidateEnd (System.Threading.Tasks.Task task) (at <695d1cc93cca45069c528c15c9fdd749>:0)
System.Runtime.CompilerServices.ConfiguredTaskAwaitable`1+ConfiguredTaskAwaiter[TResult].GetResult () (at <695d1cc93cca45069c528c15c9fdd749>:0)
Nethereum.JsonRpc.Client.ClientBase+<SendRequestAsync>d__8`1[T].MoveNext () (at Assets/MoralisWeb3ApiSdk/Nethereum/Nethereum.JsonRpc.Client/ClientBase.cs:22)
--- End of stack trace from previous location where exception was thrown ---
System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw () (at <695d1cc93cca45069c528c15c9fdd749>:0)
System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess (System.Threading.Tasks.Task task) (at <695d1cc93cca45069c528c15c9fdd749>:0)
System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification (System.Threading.Tasks.Task task) (at <695d1cc93cca45069c528c15c9fdd749>:0)
System.Runtime.CompilerServices.TaskAwaiter.ValidateEnd (System.Threading.Tasks.Task task) (at <695d1cc93cca45069c528c15c9fdd749>:0)
System.Runtime.CompilerServices.TaskAwaiter`1[TResult].GetResult () (at <695d1cc93cca45069c528c15c9fdd749>:0)
ABITest+<RunContract>d__6.MoveNext () (at Assets/MoralisWeb3ApiSdk/ABITest.cs:135)
--- End of stack trace from previous location where exception was thrown ---
System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw () (at <695d1cc93cca45069c528c15c9fdd749>:0)
Cysharp.Threading.Tasks.CompilerServices.AsyncUniTask`1[TStateMachine].GetResult (System.Int16 token) (at Assets/MoralisWeb3ApiSdk/Plugins/UniTask/Runtime/CompilerServices/StateMachineRunner.cs:218)
ABITest+<Begin>d__4.MoveNext () (at Assets/MoralisWeb3ApiSdk/ABITest.cs:86)
--- End of stack trace from previous location where exception was thrown ---
System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw () (at <695d1cc93cca45069c528c15c9fdd749>:0)
Cysharp.Threading.Tasks.CompilerServices.AsyncUniTask`1[TStateMachine].GetResult (System.Int16 token) (at Assets/MoralisWeb3ApiSdk/Plugins/UniTask/Runtime/CompilerServices/StateMachineRunner.cs:218)
ABITest+<Test>d__7.MoveNext () (at Assets/MoralisWeb3ApiSdk/ABITest.cs:144)
--- End of stack trace from previous location where exception was thrown ---
System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw () (at <695d1cc93cca45069c528c15c9fdd749>:0)
System.Runtime.CompilerServices.AsyncMethodBuilderCore+<>c.<ThrowAsync>b__6_0 (System.Object state) (at <695d1cc93cca45069c528c15c9fdd749>:0)
UnityEngine.UnitySynchronizationContext+WorkRequest.Invoke () (at <82c503977c5347cf82f44677f633fcf6>:0)
UnityEngine.UnitySynchronizationContext:ExecuteTasks()

I’m I doing something wrong?

[0xprof]

@Rico

string result = await f.SendTransactionAsync(addr);

what is the value of addr ?

@Rico

public async UniTask RunContract()

And have you tried void instead of this ?

@Rico

MoralisInterface.InsertContractInstance("Test", ABI, "mumbai", "0xc1c1dD559161A527305B276c4C9e156E887368Ce");

Was the contract deployed on the mumbai chain ?

you may also want to look at this, this example works and have been tested , primarily the send snippet

GitHub - 0xPr0f/Moralis-Unity: The Moralis Unity SDK in full action, and code... - sending custom token with smart contract function (with and without gas)

or this if the above fails to work

Ethereum Unity3D Boilerplate Questions

I made this test method and it worked for me: public async static Task TransferNft() { // Need the user for the wallet address MoralisUser user = await MoralisInterface.GetUserAsync(); string addr = user.authData["moralisEth"]["id"].ToString(); BigInteger bi = 0; if (BigInteger.TryParse(Constants.MUG_TOKEN_ID, out bi)) { // Convert token id to hex as this is what the contract call expects object[] pars = new objec…

And passing the ABI that was like a string is supposed to return errors, so you can make it public and pass it through unity

[Rico]

Yes it’s deployed to mumbai, addr is user address, I’ve tried void.
can you guide me on SendTransactionAsync() parameters?
I made ABI a public variable

[0xprof]

hey, pls can you take a look at the links i sent, it is pretty clear there

also, this is the boilerplate readme, take a look at it

GitHub - ethereum-boilerplate/ethereum-unity-boilerplate: Moralis / Unity3D... - Web3

[Rico]

I’ve gotten the contract to run using this code:

Function f = MoralisInterface.EvmContractFunctionInstance("test", "mumbai", method);

            HexBigInteger gas = new HexBigInteger(0);
            object[] pars = new object[] { };


            // Call contract function, response is always a string.
            //String resp = await MoralisInterface.GetClient().Web3Api.Native.RunContractFunction("0xc1c1dD559161A527305B276c4C9e156E887368Ce", "getCount", rcd, ChainList.mumbai);
            string resp = await MoralisInterface.SendEvmTransactionAsync("test", "mumbai", method, addr, gas, new HexBigInteger("0x0"), pars);

            print(resp);

now I just need to covert the hash it sends back to a readable string, Thanks

[0xprof]

well it is supposed to look more like this

// sending custom erc20 specifying gas
 public async void sendCustomTokenwithcustomgas()
 {
//LOL is a unique name, you will see how it is used and set in the boilerplate readme, you can use any name(i used LOL), 
//ABI is the contract ABI (it is public so i set it through unity,
// rinkeby is the chain my smart contract is deployed on and the chain i connect to with wallet connect
// The address is the address of the smart contract deployed on rinkeby
     MoralisInterface.InsertContractInstance("LOL", ABI, "rinkeby", "0xfF75215204108992CFc2e902E560D461776BC906");
     //gas estimate for the transaction
     HexBigInteger gas = new HexBigInteger(80000);
     string recieverAddress = "0xE1E891fE77ea200eaE62c9C9B3395443cc6ed7bE";
     string senderAddress = "0x37Ad540C876FceCf80090493F02068b115dDf8B6";
// This is the argument of any transaction, in this case transfer(address to, uint amount)
     object[] pars = { recieverAddress, 20};
     // This will call the smart contract fucntion
// LOL is that same sam key i used as before (it is required the same key is used for the same instance)
// rinkeby is my chain
// The function i am calling is the `transfer` function from my smart contract (with the abi), you can place any function name here
// The sender of the Function, usually the address returned from the wallet connect connection (in solidity msg.sender or tx.origin lol but not in this case 😅)
// That is the gas we are using, we set it above
// well nothing much to explain 😅
// The arguments the function transfer takes, we also set that above
     string result = await MoralisInterface.SendEvmTransactionAsync("LOL", "rinkeby", "transfer", senderAddress, gas, new HexBigInteger("0x0"), pars);
// This will return the tx hash as a string
     print(result);
 }

This should give you an overview of how it is done, you can take a look at the boilerplate readme anything you dont understand you can ask here

[Rico]

How do you run a cloud function from Unity?

Edit:

IDictionary<string, object> pars2 = new Dictionary<string, object>();

ResourceResponse resourceResponse = await MoralisInterface.GetClient().Cloud.RunAsync<ResourceResponse>("getCount", pars2);

[dgoodrich]

What you have there is correct.

For example, for authentication the server time must be retrieved by calling a cloud function. This is the code for that:

        // Retrieve server time from Moralis Server for message signature
        Dictionary<string, object> serverTimeResponse = await MoralisInterface.GetClient().Cloud.RunAsync<Dictionary<string, object>>("getServerTime", new Dictionary<string, object>());

So your code looks good. Are you observing any errors?

[danda_dandic]

Hi guys, I have a question.
With my current login flow (android, metamask), user is redirected to metamask with deeplink, than he needs to go back to app and is redirected to metamask again, is there a way so user doesn’t need to go back to app?

[Hero909]

++++ for this question been willing to ask that one for a while.

[dgoodrich]

Unfortunately no. When the user is re-directed, WalletConnect / Unity goes to sleep. So the navigation back to the app allows it to wake so it can process the response and then send the signature request.

[Hero909]

Hi there.

managed to get ERC20 transaction work perfectly with the SendEvmTransactionAsync.
Now I am trying to get infos about my NFT pricing.
My contract function has one input argument (OfferID) and should return 5 outputs like shown below:

Was thinking of using the SendEvmTransactionAsync but I am not trying to make a transaction, just need to run a specific contract function. Despite the readme git, I can’t figure out how to use the RunContractFunction method.

Any help would be super greatful as my marketplace will need lots of function calls

Thnaks

[danda_dandic]

So my suspicion was correct, but wanted to ask anyway if I miss some possible solution thanks for answer