Successful Login to API; Unsuccessful at accessing any data due to being unauthorized - api

Question

I am attempting to come up with a live leaderboard for my local club using the PDGA's (Professional Disc Golf Association) API. I am writing a Google Apps Script intending to auto populate a Google Sheet with a Club Ranking that can be refreshed as needed.
Right now, all I am trying to do is make pull of data to ensure I am able to begin using the API, but I can't seem to do even that.
For reference, here are the only two resources I have to work with regarding this specific API:
PDGA REST API Authentication
PDGA REST API Services
I have got the original login to work using this code:
function apiLogin() {
var LoginUrl = 'https://api.pdga.com/services/json/user/login';
var LoginDetails = {
'username' : Username,
'password' : Password
};
var LoginRequest = {
'method' : 'post',
'Content-Type' : 'application/json',
'payload' : LoginDetails
};
var LoginResponse = UrlFetchApp.fetch(LoginUrl, LoginRequest);
var json = LoginResponse.getContentText();
var LoginData = JSON.parse(json);
Logger.log(LoginData);
var SessionID = LoginData['sessid'];
var SessionName = LoginData['session_name'];
var Tok = LoginData['token'];
var playerFetchPar = {
'method' : 'get',
'Cookie' : SessionID + '=' + SessionName
};
var PlayerResponse = UrlFetchApp.fetch('https://api.pdga.com/services/json/players?pdga_number=1',playerFetchPar); //ERROR
Logger.log(PlayerResponse);
};
It's the last part when I am trying to call on data from a player that I get the following error message:
Exception: Request failed for https://api.pdga.com returned code 403. Truncated server response: ["Access denied for user anonymous"] (use muteHttpExceptions option to examine full response)
I am guessing that my screw up is in my interpretion of the parameter Cookie from that second link. In the initial response to make sure I was logging in properly, I received a session_name and sessid but I can't seem to figure out what is expected from Cookie. I am sorry if the answer is obvious, but any help would be greatly appreciated!

Answer 1

The documentation says
Cookie: session_name=sessid
You've used
Cookie: sessid=session_name
Reverse it:
'Cookie' : `${SessionName}=${SessionID}`
And you need to send it as a header:
const playerFetchPar = {
method : 'get',
headers: {'Cookie' : `${SessionName}=${SessionID}`}
};