Trouble with poDoNotEncode option in TRESTRequest.AddParameter() method - rest

Question

I'm having trouble using the poDoNotEncode option in the TRESTRequest.AddParameter() method. I need to be able to post a request with a j_token header with a value that includes the '/' characters or else. For this need, I read everywhere that I can simply add poDoNotEncode to the options of the request parameters.
I tried several methods I found on the Internet to add a j_token header to my request:
var
RESTRequest : TRESTRequest;
RESTClient : TRESTClient;
Response : TRESTResponse;
begin
RESTClient := TRESTClient.Create('http://127.0.0.1:5000/')
RESTRequest := TRESTRequest.Create(nil);
try
RESTRequest.Client := RESTClient;
RESTRequest.Method := rmPOST;
RESTRequest.AddParameter('j_token', 'ga/ga', pkHTTPHEADER, poDoNotEncode);
//RESTRequest.Params.AddHeader('j_token', 'ga/ga').Options := poDoNotEncode;
//RESTRequest.Params.AddItem('j_token', 'ga/ga', pkHTTPHEADER, poDoNotEncode);
RESTRequest.Execute;
Response := RESTRequest.Response;
ShowMessage(Response.Content);
finally
RESTClient.Free;
RESTRequest.Free;
end;
end;
In this example, I used my own API to see the content of my request headers (here just j_token). Each and every method I tried (the commented ones) result with this:
Request headers : ga%2Fga
Meaning that the header I'm sending is url-encoded whether or not poDoNotEncode is specified.
Just to clarify, I'm working currently on a program developed by the company I work for. This software should use Delphi 10.3 Rio as its script language.
Maybe it can help, but when I try something like this:
RESTRequest.AddParameter('j_token', 'ga/ga', pkHTTPHEADER, [poDoNotEncode]);
I get this error:
RUNTIME ERROR : Impossible converting variant of type (Array Variant) to type (Integer) when evaluating instruction PushVar($0,$0,$0,$0, 'Result')...
And when I try something like this:
RESTRequest.AddParameter('j_token', 'ga/ga', pkHTTPHEADER, TRESTRequestParameterOptions.poDoNotEncode);
then I get this error:
Unknown identifier or variable is not declared : 'TRESTRequestParameterOptions'
I tried to be as precise as possible, because I'm completely stuck right now. If you need more precision, I'll try to answer as clearly as possible.

Answer 1

I've solved my problem. To provide a context, I have access to the archives of my company with every script they made. To learn delphi it helps a lot, and as I was looking at an example for the TRESTRequest.AddParameter() method i noticed that the 4th parameter for this method was a 0 like this :
RESTRequest.AddParameter('j_token',mytoken,pkHTTPHEADER,0);
So I looked on the internet to find what that 0 meant and i found out it was supposed to be an option for the parameter such as poDoNotEncode. I was still wondering why they replaced that with a 0 but I simply guessed it was to avoid an error if you don't put anything because our compiler wants the RESTRequest.AddParameter() method to have 4 parameters. So in the end i started doing the same until i needed my parameter to not getting encoded. But the poDoNotEncode option wasn't working. I tried to see what it would show inside a ShowMessage(poDoNotEncode); and it showed me a 0. So I decided as a test to put a 1 instead of poDoNotEncode like this :
RESTRequest.AddParameter('j_token',mytoken,pkHTTPHEADER,1);
And finally it worked, I have no idea why our software prefers using Integers instead of the real options names but if ever you stumble upon this problem, there is a high chance that you had the same weird definition of options.
Thank you all for your help !