(.NET Core C#) Google Drive Multipart Upload String

Demonstrates a file upload to Google Drive where the contents of the file are contained in a string variable.

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// This example will upload a file to Google Drive.
bool success = true;

// It requires the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

Chilkat.AuthGoogle gAuth = new Chilkat.AuthGoogle();
gAuth.Scope = "https://www.googleapis.com/auth/drive";
gAuth.SubEmailAddress = "some.user@example.com";
gAuth.ExpireNumSeconds = 3600;

// Obtain an access token as shown in one of the following examples:
// See Get Access Token using a Service Account JSON Key
// See Get Access Token using a P12 File

Chilkat.Rest rest = new Chilkat.Rest();

// Connect using TLS.
bool bAutoReconnect = true;
success = rest.Connect("www.googleapis.com",443,true,bAutoReconnect);

// Provide the authentication credentials (i.e. the access key)
success = rest.SetAuthGoogle(gAuth);

// A multipart upload to Google Drive needs a multipart/related Content-Type
success = rest.AddHeader("Content-Type","multipart/related");

// Specify each part of the request.

// The 1st part is JSON with information about the file.
rest.PartSelector = "1";
success = rest.AddHeader("Content-Type","application/json; charset=UTF-8");

Chilkat.JsonObject json = new Chilkat.JsonObject();
success = json.AddStringAt(-1,"title","helloWorld.txt");
success = json.AddStringAt(-1,"description","A simple text file that says Hello World.");
success = json.AddStringAt(-1,"mimeType","text/plain");
success = rest.SetMultipartBodyString(json.Emit());

// The 2nd part is the file content.
// In this case, we'll upload a simple text file containing "Hello World!"
rest.PartSelector = "2";
success = rest.AddHeader("Content-Type","text/plain");
success = rest.SetMultipartBodyString("Hello World!");

// POST https://www.googleapis.com/upload/drive/v2/files
string jsonResponse = rest.FullRequestMultipart("POST","/upload/drive/v2/files?uploadType=multipart");
if (rest.LastMethodSuccess != true) {
    Debug.WriteLine(rest.LastErrorText);
    return;
}

// Show the JSON response.
Debug.WriteLine("Response Status Code: " + Convert.ToString(rest.ResponseStatusCode));
Debug.WriteLine("Json Response: " + jsonResponse);