Java

Google Drive Multipart Upload String

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Demonstrates a file upload to Google Drive where the contents of the file are contained in a string variable. Chilkat2 Java

import com.chilkatsoft.chilkat2.AuthGoogle;
import com.chilkatsoft.chilkat2.ChilkatException;
import com.chilkatsoft.chilkat2.JsonObject;
import com.chilkatsoft.chilkat2.Rest;

public class ChilkatExample {

    public static void main(String[] args) {
        boolean success = false;

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

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

        AuthGoogle gAuth = new AuthGoogle();
        gAuth.setScope("https://www.googleapis.com/auth/drive");
        gAuth.setSubEmailAddress("some.user@example.com");
        gAuth.setExpireNumSeconds(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

        Rest rest = new Rest();

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

        // Provide the authentication credentials (i.e. the access key)
        rest.setAuthGoogle(gAuth);

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

        // Specify each part of the request.

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

        JsonObject json = new JsonObject();
        json.addStringAt(-1, "title", "helloWorld.txt");
        json.addStringAt(-1, "description", "A simple text file that says Hello World.");
        json.addStringAt(-1, "mimeType", "text/plain");
        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.setPartSelector("2");
        rest.addHeader("Content-Type", "text/plain");
        rest.setMultipartBodyString("Hello World!");

        // POST https://www.googleapis.com/upload/drive/v2/files
        String jsonResponse;
        try {
            jsonResponse = rest.fullRequestMultipart("POST", "/upload/drive/v2/files?uploadType=multipart");
        } catch (ChilkatException e) {
            System.out.println(e.getLastErrorText());
            return;
        }

        // Show the JSON response.
        System.out.println("Response Status Code: " + rest.getResponseStatusCode());
        System.out.println("Json Response: " + jsonResponse);
    }
}