How can we get transaction information

Moralis General
#16

  1. I have run a code in solidity, then I minted a NFT and did the transaction using metamask.

  2. After successful transaction I got transaction receipt in Remix terminal.

  3. Now I want that same information in my MongoDB.

then what can I do ?

#17

you can sync the events specific to that mint

https://docs.moralis.io/moralis-dapp/automatic-transaction-sync/smart-contract-events

#18

I am using sync, but after sync I am only able to create table in database, but not able to fetch the transaction

#19

Can you check if there are any errors in the database logs which are related to the event sync.

#20

As UI interface has changes I am not able to open the database for the server created.

#21

If you open the server settings you can find the option here.

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You can also use the legacy UI if you still can’t open it.

1 Like
#22

I am not getting any error.

#23

Did any events emit from the contract after adding the event sync?

Can you share the event ABI, chain and contract address which you used to add the sync.

#24

Topic - Approval (address, address, uint256)
Abi - {
“anonymous”: false,
“inputs”: [
{
“indexed”: true,
“internalType”: “address”,
“name”: “owner”,
“type”: “address”
},
{
“indexed”: true,
“internalType”: “address”,
“name”: “approved”,
“type”: “address”
},
{
“indexed”: true,
“internalType”: “uint256”,
“name”: “tokenId”,
“type”: “uint256”
}
],
“name”: “Approval”,
“type”: “event”
}

address - 0xf6b0599780bbf43489bfc863A3d6F194119bCdD2

#25

what is the server url?

#26

What is the chain name?

#27

Rinkeby Testnet Network

#28

There are no events for this contract address. Thats the reason it did not sync any.
https://rinkeby.etherscan.io/address/0xf6b0599780bbf43489bfc863A3d6F194119bCdD2#events

#29

But I have transactions, then how can I get events ?

#30

https://s13raf28z2ju.usemoralis.com:2053/server

#31

As per your contract code, Approval events are emitted in the _approve function. So when you call the _approve function you get a new Approval event.

#32

What should I do now ?

#33

As per the etherscan both your transactions are failed due to less gas. Maybe run a new transaction with enough gas and add an emit event in the function which you are calling.

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#34

// SPDX-License-Identifier: Unlicense

pragma solidity ^0.8.4;

import “@openzeppelin/[email protected]/token/ERC721/extensions/ERC721Enumerable.sol”;

import “@openzeppelin/[email protected]/token/ERC721/extensions/ERC721URIStorage.sol”;

import “@openzeppelin/[email protected]/token/ERC721/extensions/IERC721Metadata.sol”;

import “@openzeppelin/[email protected]/token/ERC721/ERC721.sol”;

import “@openzeppelin/[email protected]/utils/math/SafeMath.sol”;

contract trans is ERC721, ERC721Enumerable, ERC721URIStorage{

    function _beforeTokenTransfer(address from, address to, uint256 tokenId)

    internal

    override(ERC721, ERC721Enumerable)

{

    super._beforeTokenTransfer(from, to, tokenId);

}

function _burn(uint256 tokenId) internal override(ERC721, ERC721URIStorage){

    super._burn(tokenId);

}

function supportsInterface(bytes4 interfaceId)

    public

    view

    override(ERC721, ERC721Enumerable)

    returns (bool)

{

    return super.supportsInterface(interfaceId);

}

function tokenURI(uint256 tokenId)

    public

    view

    override(ERC721, ERC721URIStorage)

    returns (string memory)

{

    return super.tokenURI(tokenId);

}

    constructor() ERC721("YTMinter", "YTM")  {}

    function get() public payable {

           string memory _link = "https://ipfs.io/ipfs/QmRsYWdpykpcsiC1YELHnJDepAdk1kqpg9rQ6ipEzYRywA";

           mint(_link);

    }

    function mint(string memory _uri) public {

            uint256 mintIndex = totalSupply();

            _safeMint(msg.sender, mintIndex);

            _setTokenURI(mintIndex, _uri);

    }

    //function name() external view returns (string name);

}

where to add emit what to write ?

#35

there are 3 transactions out of which 1 is done properly, then that transaction should be visble.