Delphi Alexandria - Backward slash in JSON response - json

Question

In JSON response, backward slashes are included in string if we have forward slash character.
I am using the below code to get the API response.
procedure GetJSONInformation;
var
objResponse : TRESTResponse;
objClient : TRESTClient;
objRequest : TRESTRequest;
sJSONResponse : string;
begin
objResponse := TRESTResponse.Create(nil);
objClient := TRESTClient.Create(nil);
objClient.Accept := 'application/json, text/plain; q=0.9, text/html;q=0.8,';
objClient.AcceptCharset := 'UTF-8, *;q=0.8';
objRequest := TRESTRequest.Create(nil);
objRequest.Method := rmGET;
objRequest.Accept := 'application/json, text/plain; q=0.9, text/html;q=0.8,';
objRequest.AcceptCharset := 'UTF-8, *;q=0.8';
objRequest.Client := objClient;
objRequest.Response:= objResponse;
try
objClient.BaseURL := 'https://sample.net';
ObjRequest.Resource := 'api/GetInformation/{Param1}/{Param2}';
ObjRequest.AddParameter('Param1', 'Parameter1', TRESTRequestParameterKind.pkURLSEGMENT);
ObjRequest.AddParameter('Param2', 'Parameter2', TRESTRequestParameterKind.pkURLSEGMENT);
ObjRequest.Execute;
if ObjResponse.StatusCode = 200 then
sJSONResponse:= ObjResponse.JsonText; //Here i got the JSON response
finally
FreeAndNil(objRequest);
FreeAndNil(objClient);
FreeAndNil(objResponse);
end;
end;
In API Response, backward slashes are included in string if I had forward slash in it. For Example,
JSON Response: "Date": "04\/13\/2022",
"stringdata": "DEC\/ACB test",
Expected Response: "Date": "04/13/2022",
"stringdata": "DEC/ACB test",
This is happening only in Alexandria version of Delphi whereas it was working fine in Delphi Berlin.
All I want to remove the backward slash in string. Please help me

Answer 1

You don't have to remove anything.
Just parse valid json response and you will obtain the correct field value without escaped json string, just like #Dave Nottage and #Adriaan mentioned in comments.
See below two alternatives to parse with System.json and mORMot. It was tested with Delphi 10.x and Delphi 11 versions.
program Test_SystemJson_and_mORMot;
{$APPTYPE CONSOLE}
uses
System.SysUtils,
System.JSON,
Syncommons;
const
ValidJSON='{"Date": "04\/13\/2022","stringdata": "DEC\/ACB test"}';
var
// with System.JSON
JsonValue : TJSonValue;
// with mORMot
Json : variant;
begin
// with System.JSON
JsonValue := TJSonObject.ParseJSONValue(ValidJSON);
writeln(JsonValue.GetValue<string>('Date')); // Result 04/13/2022
writeln(JsonValue.GetValue<string>('stringdata')); // Result DEC/ACB test
// with mORMot
Json := _Json(ValidJSON);
writeln(Json.Date); // Result 04/13/2022
writeln(Json.stringdata); // Result DEC/ACB test
readln;
end.