Add a Path Substitution Parameter to a REST Request

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Demonstrates Rest.AddPathParam, which adds or replaces a path-substitution parameter. Before a request is sent, each occurrence of the name in the URI path is replaced with its value.

var
success: Integer;
rest: TChilkatRest;
bTls: Integer;
bAutoReconnect: Integer;
responseText: WideString;

begin
success := 0;

rest := TChilkatRest.Create(Self);

//  Connect to the REST server.  The 3rd argument enables TLS (use 1 for HTTPS on port 443),
//  and the 4th enables automatic reconnection if the connection is dropped between requests.
bTls := 1;
bAutoReconnect := 1;
success := rest.Connect('example.com',443,bTls,bAutoReconnect);
if (success = 0) then
  begin
    Memo1.Lines.Add(rest.LastErrorText);
    Exit;
  end;

//  Add path-substitution parameters.  Before a request is sent, each occurrence of the name in the
//  URI path is replaced with the value.  This keeps the path template readable.
rest.AddPathParam('{userId}','12345');
rest.AddPathParam('{orderId}','98765');

//  The placeholders in the path are replaced before the request is sent.
responseText := rest.FullRequestNoBody('GET','/users/{userId}/orders/{orderId}');
if (rest.LastMethodSuccess = 0) then
  begin
    Memo1.Lines.Add(rest.LastErrorText);
    Exit;
  end;
Memo1.Lines.Add(responseText);