How to read solidity function with tuple data in ether-js - blockchain

Question

When I call the getLandById function in remix it gives the desired result as you can see in the screenshot
Screeshot of remix IDE to get landIdbyId
When I call the same function using ether js. it will gives the output like this :
[ '0.007062190', '-0.01878356', '\x00\x00', [Getter] ]
Instead of
[ '0.007062190', '-0.01878356', '-0.019048060716011,0.007015231577652,-0.018794627684582,0.007386060761845,-0.018423798497481,0.007132627732498,-0.018677231528875,0.006761798548127,-0.019048060716011,0.007015231577652']
I'm struggling to understand how to get the data. Any idea on what should I do to get the desired result? An example would be great.
Ether-js code:
let customHttpProvider = new ethers.providers.JsonRpcProvider(API_URL);
const contract = new ethers.Contract(
Contract_Address,
contractAbi,
customHttpProvider
);
//Calling readOnly Method
async function getLand() {
const getLandById = await contract.getLandById("502");
console.log("Land-Info", getLandById);
}
getLand();
Contract ABIs:
{
"inputs": [
{
"internalType": "uint256",
"name": "landId",
"type": "uint256"
}
],
"name": "getLandById",
"outputs": [
{
"internalType": "string",
"name": "",
"type": "string"
},
{
"internalType": "string",
"name": "",
"type": "string"
},
{
"internalType": "string",
"name": "",
"type": "string"
},
{
"components": [
{
"internalType": "string",
"name": "longitude",
"type": "string"
},
{
"internalType": "string",
"name": "latitude",
"type": "string"
}
],
"internalType": "struct LandContract.PolygonCoordinates[]",
"name": "",
"type": "tuple[]"
}
],
"stateMutability": "view",
"type": "function"
},
Solidity code:
function getLandById(uint landId)
public
view
returns (
string memory,
string memory,
PolygonCoordinates[] memory
)
{
if (!_exists(landId)) {
revert IdNotExist();
}
PolygonCoordinates[] memory coordinates = new PolygonCoordinates[](
land[landId].polygonCoordinates.length
);
for (uint i = 0; i < land[landId].polygonCoordinates.length; ) {
coordinates[i].longitude = land[landId]
.polygonCoordinates[i]
.longitude;
coordinates[i].latitude = land[landId]
.polygonCoordinates[i]
.latitude;
unchecked {
i++;
}
}
return (land[landId].longitude, land[landId].latitude, coordinates);
}

Answer 1

The contract ABI defines 4 output values but your solidity code getLandById() returns only 3 values.