Solidity - API calls of AccuWeather on Chainlink do not function as expected - api

Question

I am at the very beginning and am trying to understand how API calls exactly work. For this reason I am trying to deploy and make calls with the code posted by AccuWeather on chainlink market.
The code:
https://market.link/nodes/AccuWeather/integrations#CurrentConditionsResult
// SPDX-License-Identifier: MIT
pragma solidity 0.8.9;
import "#chainlink/contracts/src/v0.8/ChainlinkClient.sol";
contract AccuweatherConsumer is ChainlinkClient {
using Chainlink for Chainlink.Request;
/* ========== CONSUMER STATE VARIABLES ========== */
struct RequestParams {
uint256 locationKey;
string endpoint;
string lat;
string lon;
string units;
}
struct LocationResult {
uint256 locationKey;
string name;
bytes2 countryCode;
}
// Maps
mapping(bytes32 => LocationResult) public requestIdLocationResult;
mapping(bytes32 => RequestParams) public requestIdRequestParams;
/* ========== CONSTRUCTOR ========== */
/**
* #param _link the LINK token address.
* #param _oracle the Operator.sol contract address.
*/
constructor(address _link, address _oracle) {
setChainlinkToken(_link);
setChainlinkOracle(_oracle);
}
/* ========== CONSUMER REQUEST FUNCTIONS ========== */
/**
* #notice Returns the location information for the given coordinates.
* #param _specId the jobID.
* #param _payment the LINK amount in Juels (i.e. 10^18 aka 1 LINK).
* #param _lat the latitude (WGS84 standard, from -90 to 90).
* #param _lon the longitude (WGS84 standard, from -180 to 180).
*/
function requestLocation(
bytes32 _specId,
uint256 _payment,
string calldata _lat,
string calldata _lon
) public {
Chainlink.Request memory req = buildChainlinkRequest(_specId, address(this), this.fulfillLocation.selector);
req.add("endpoint", "location"); // NB: not required if it has been hardcoded in the job spec
req.add("lat", _lat);
req.add("lon", _lon);
bytes32 requestId = sendChainlinkRequest(req, _payment);
// Below this line is just an example of usage
storeRequestParams(requestId, 0, "location", _lat, _lon, "");
}
/* ========== CONSUMER FULFILL FUNCTIONS ========== */
/**
* #notice Consumes the data returned by the node job on a particular request.
* #dev Only when `_locationFound` is true, both `_locationFound` will contain meaningful data (as bytes). This
* function body is just an example of usage.
* #param _requestId the request ID for fulfillment.
* #param _locationFound true if a location was found for the given coordinates, otherwise false.
* #param _locationResult the location information (encoded as LocationResult).
*/
function fulfillLocation(
bytes32 _requestId,
bool _locationFound,
bytes memory _locationResult
) public recordChainlinkFulfillment(_requestId) {
if (_locationFound) {
storeLocationResult(_requestId, _locationResult);
}
}
/* ========== PRIVATE FUNCTIONS ========== */
function storeRequestParams(
bytes32 _requestId,
uint256 _locationKey,
string memory _endpoint,
string memory _lat,
string memory _lon,
string memory _units
) private {
RequestParams memory requestParams;
requestParams.locationKey = _locationKey;
requestParams.endpoint = _endpoint;
requestParams.lat = _lat;
requestParams.lon = _lon;
requestParams.units = _units;
requestIdRequestParams[_requestId] = requestParams;
}
function storeLocationResult(bytes32 _requestId, bytes memory _locationResult) private {
LocationResult memory result = abi.decode(_locationResult, (LocationResult));
requestIdLocationResult[_requestId] = result;
}
}
I have deployed the contract, fueled it with LINKs. I can do the calls for the Location by entering the JobID, lat and long I found an AccuWeather (lat: 30.918 and long:-99.786) as well as the link payment. The call seems to be successful but when I take the requestID and use it to see the LocationResult I receive empty values.
I dont really know why it does not work or weather I forget to do something in between.
If I understand it correctly I need the LocationResult function to get information required for the fulfill function, is that correct?
I just hope someone faced the same problem and can help me. I would be very thankful for any suggestion!!