Im currently following yalls tutorial on the docs. I’m on the part that is Sync and watch contract events
the part where i enter the abi i keep getting the error “Invalid ABI, Please veryify” im not sure exactly what else to do iv tried going in and copying what i believe is the correct abi but i have no idea?
Try this:
{
"anonymous": false,
"inputs": [
{
"indexed": true,
"internalType": "address",
"name": "from",
"type": "address"
},
{
"indexed": true,
"internalType": "address",
"name": "to",
"type": "address"
},
{
"indexed": false,
"internalType": "uint256",
"name": "value",
"type": "uint256"
}
],
"name": "Transfer",
"type": "event"
}
I hope I helped you. 
I had a same issue.
But thanks to your answer, I have solved the problem.
Maybe it wasn’t good that I pasted the auto-formatted code by VS Code extension.
We also need to enclose the key in “”.
Be careful, because VS Code’s automatic formatting will erase the “” in the key.
Hi @classlacia
It’s true, you have to be very careful with formatters. I advise you to customize the formatter settings to avoid problems later.
Happy BUIDLing 
Hey Guys - Having the same trouble with the ABI
},
{
"anonymous": false,
"inputs": [
{
"indexed": false,
"internalType": "uint256",
"name": "id",
"type": "uint256"
},
{
"indexed": false,
"internalType": "address",
"name": "buyer",
"type": "address"
},
{
"indexed": false,
"internalType": "uint256",
"name": "askingPrice",
"type": "uint256"
}
],
"name": "itemSold",
"type": "event"
},
Please remove this extra bracket for resolving the issue in your ABI.
Hope this helps.
Thanks a bunch - I was also copying
"name": "itemSold",
"type": "event"
},
should be
“name”: “itemSold”,
“type”: “event”
}
no , at the end
I also had the same issue and it turned out my VS code formatter removed all the quotes from that object, everything is fixed now.
I am having trouble with this also but my contract ABI is very condensed and even when formatted still results in the ABI code being declined
My ABI Code Below
For syncing events you have to extract only the ABI specific to. your event from the entire ABI specific to that smart contract.
Hi, please check the abi for me, it says Invalid ABI, The ABI should contain an array of inputs.
[
{
"inputs": [
{
"internalType": "contract ABC",
"name": "_bony",
"type": "address"
}
],
"stateMutability": "nonpayable",
"type": "constructor"
},
{
"anonymous": false,
"inputs": [
{
"indexed": true,
"internalType": "uint256",
"name": "tokenId",
"type": "uint256"
}
],
"name": "Delist",
"type": "event"
},
{
"anonymous": false,
"inputs": [
{
"indexed": true,
"internalType": "uint256",
"name": "tokenId",
"type": "uint256"
},
{
"indexed": false,
"internalType": "uint256",
"name": "value",
"type": "uint256"
}
],
"name": "List",
"type": "event"
},
{
"anonymous": false,
"inputs": [
{
"indexed": true,
"internalType": "uint256",
"name": "tokenId",
"type": "uint256"
},
{
"indexed": false,
"internalType": "address",
"name": "sender",
"type": "address"
}
],
"name": "NftOfferCanceled",
"type": "event"
},
{
"anonymous": false,
"inputs": [
{
"indexed": true,
"internalType": "uint256",
"name": "tokenId",
"type": "uint256"
},
{
"indexed": false,
"internalType": "address",
"name": "buyer",
"type": "address"
},
{
"indexed": false,
"internalType": "uint256",
"name": "offerValue",
"type": "uint256"
}
],
"name": "NftOffered",
"type": "event"
},
{
"anonymous": false,
"inputs": [
{
"indexed": true,
"internalType": "address",
"name": "previousOwner",
"type": "address"
},
{
"indexed": true,
"internalType": "address",
"name": "newOwner",
"type": "address"
}
],
"name": "OwnershipTransferred",
"type": "event"
},
{
"anonymous": false,
"inputs": [
{
"indexed": false,
"internalType": "address",
"name": "seller",
"type": "address"
},
{
"indexed": false,
"internalType": "address",
"name": "buyer",
"type": "address"
},
{
"indexed": true,
"internalType": "uint256",
"name": "tokenId",
"type": "uint256"
},
{
"indexed": false,
"internalType": "uint256",
"name": "value",
"type": "uint256"
}
],
"name": "TradeExecuted",
"type": "event"
},
{
"inputs": [],
"name": "TRADE_FEE",
"outputs": [
{
"internalType": "uint256",
"name": "",
"type": "uint256"
}
],
"stateMutability": "view",
"type": "function"
},
{
"inputs": [],
"name": "TRADE_FUNDED_FEE",
"outputs": [
{
"internalType": "uint256",
"name": "",
"type": "uint256"
}
],
"stateMutability": "view",
"type": "function"
},
{
"inputs": [
{
"internalType": "uint256",
"name": "tokenId",
"type": "uint256"
}
],
"name": "buyNft",
"outputs": [],
"stateMutability": "payable",
"type": "function"
},
{
"inputs": [
{
"internalType": "uint256",
"name": "tokenId",
"type": "uint256"
}
],
"name": "delistNft",
"outputs": [],
"stateMutability": "nonpayable",
"type": "function"
},
{
"inputs": [],
"name": "getBalance",
"outputs": [
{
"internalType": "uint256",
"name": "",
"type": "uint256"
}
],
"stateMutability": "view",
"type": "function"
},
{
"inputs": [],
"name": "getBalanceToken",
"outputs": [
{
"internalType": "uint256",
"name": "",
"type": "uint256"
}
],
"stateMutability": "view",
"type": "function"
},
{
"inputs": [
{
"internalType": "uint256",
"name": "tokenId",
"type": "uint256"
},
{
"internalType": "uint256",
"name": "price",
"type": "uint256"
}
],
"name": "listNft",
"outputs": [],
"stateMutability": "nonpayable",
"type": "function"
},
{
"inputs": [
{
"internalType": "uint256",
"name": "",
"type": "uint256"
}
],
"name": "listings",
"outputs": [
{
"internalType": "uint256",
"name": "",
"type": "uint256"
}
],
"stateMutability": "view",
"type": "function"
},
{
"inputs": [
{
"internalType": "uint256",
"name": "",
"type": "uint256"
},
{
"internalType": "address",
"name": "",
"type": "address"
}
],
"name": "nftsWithOffers",
"outputs": [
{
"internalType": "uint256",
"name": "",
"type": "uint256"
}
],
"stateMutability": "view",
"type": "function"
},
{
"inputs": [],
"name": "owner",
"outputs": [
{
"internalType": "address",
"name": "",
"type": "address"
}
],
"stateMutability": "view",
"type": "function"
},
{
"inputs": [],
"name": "renounceOwnership",
"outputs": [],
"stateMutability": "nonpayable",
"type": "function"
},
{
"inputs": [],
"name": "toggleMarketPlace",
"outputs": [],
"stateMutability": "nonpayable",
"type": "function"
},
{
"inputs": [
{
"internalType": "address",
"name": "newOwner",
"type": "address"
}
],
"name": "transferOwnership",
"outputs": [],
"stateMutability": "nonpayable",
"type": "function"
},
{
"inputs": [
{
"internalType": "uint256",
"name": "amount",
"type": "uint256"
}
],
"name": "updateServiceFee",
"outputs": [],
"stateMutability": "nonpayable",
"type": "function"
},
{
"inputs": [
{
"internalType": "address payable",
"name": "_wallet",
"type": "address"
}
],
"name": "updateWalletFund",
"outputs": [],
"stateMutability": "nonpayable",
"type": "function"
},
{
"inputs": [],
"name": "walletFund",
"outputs": [
{
"internalType": "address payable",
"name": "",
"type": "address"
}
],
"stateMutability": "view",
"type": "function"
},
{
"inputs": [
{
"internalType": "uint256",
"name": "amount",
"type": "uint256"
}
],
"name": "withdrawFund",
"outputs": [],
"stateMutability": "nonpayable",
"type": "function"
},
{
"inputs": [
{
"internalType": "uint256",
"name": "_amount",
"type": "uint256"
},
{
"internalType": "address",
"name": "_toAddr",
"type": "address"
}
],
"name": "withdrawToken",
"outputs": [],
"stateMutability": "nonpayable",
"type": "function"
}
]
what are you trying to do with this ABI?
For: Configure Sync and Watch Contract Events
It works for me now, thanks!
@cryptokid can you clarify what you said about extracting only the ABI specific to the event? Which part of the ABI should we include? Thanks!
Hey @brown2020
You need to copy the ABI
After this step you can use for example http://jsonviewer.stack.hu/ and format the code.
You need to find ABI object with type event and name you need. Here is example:
After this you need to provide the ABI object to event settings
