Java

Initiate Resumable Upload Session

See more Google Cloud Storage Examples

Initiate a Google Cloud Storage resumable upload session.. Chilkat2 Java

import com.chilkatsoft.chilkat2.ChilkatException;
import com.chilkatsoft.chilkat2.Http;
import com.chilkatsoft.chilkat2.HttpResponse;
import com.chilkatsoft.chilkat2.JsonObject;

public class ChilkatExample {

    public static void main(String[] args) {
        // This example assumes the Chilkat API to have been previously unlocked.
        // See Global Unlock Sample for sample code.

        Http http = new Http();

        JsonObject jsonToken = new JsonObject();
        try {
            jsonToken.loadFile("qa_data/tokens/googleCloudStorage.json");
        } catch (ChilkatException e) {
            System.out.println(e.getLastErrorText());
            return;
        }

        JsonObject jsonMetaData = new JsonObject();
        jsonMetaData.updateString("contentType", "image/jpeg");

        // Adds the "Authorization: Bearer <access_token>" header..
        http.setAuthToken(jsonToken.stringOf("access_token"));

        http.setUrlVar("bucket_name", "chilkat-bucket-b");
        http.setUrlVar("object_name", "penguins2.jpg");
        String url = "https://storage.googleapis.com/upload/storage/v1/b/{$bucket_name}/o?uploadType=resumable&name={$object_name}";
        HttpResponse resp = new HttpResponse();
        try {
            http.httpJson("POST", url, jsonMetaData, "application/json", resp);
        } catch (ChilkatException e) {
            System.out.println(e.getLastErrorText());
            return;
        }

        int statusCode = resp.getStatusCode();
        System.out.println("response status code = " + statusCode);

        String sessionUrl = "";

        if (statusCode != 200) {
            System.out.println(resp.getBodyStr());
        } else {
            // The session URL will be used to upload the file in chunks, in subsequent HTTP POSTs...
            sessionUrl = resp.getHeaderField("Location");
            System.out.println("Session URL = " + sessionUrl);
        }
    }
}