ServiceNow API - Put & Get requests C#

[METAH]

Dear community,

i faced with very uncommon thing with servicenow API.

I making the tool for automatization of servicenow requests and using API via C#

so, whe you made PUT request to create request for example, the field requested_for should contain the sys_id of the user from sys_user table. Bur when you get the response, the field requested_for is not the sys_id, its an object! which contains sys_id AND the link.

and because of this, i faced with JSON data searilization issue, because the class structure must be different, in put its a string, in GET its an resourceLink object. here is the part of my code for explanation:

PUT. Class:

class Request

{

public string? requested_for { get; set; }

}

serialization of the class object:

HttpContent content = new StringContent(serializedObject, null, "application/json");

PUT request itself:

using var response = await _httpClient.PostAsync(
$"api/now/table/{tableName}" + (string.IsNullOrWhiteSpace(extraQueryString) ? "" : "?" + extraQueryString),
content,
cancellationToken
).ConfigureAwait(false)
?? throw new Exception("Null response.");

and in response variable this: public string? requested_for { get; set; } returned like this:

public ResourceLink<User>? requested_for { get; set; }

And the ResourceLink is like:

Class ResourceLink

{

public string? Link { get; set; }

public string? Value { get; set; }

}

P.S.

if i try to using ResourceLink in PUT request to create the request initially, its does not work. its works with string ID only.