Java

Send XML REST Request, Get Response with No Body (Google Cloud Storage)

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Demonstrates sending a RESTful XML request, and receiving a response where the expected response is a header with no body (Content-Length = 0). This example will create a bucket in Google Cloud Storage using the Google Cloud Storage XML API.

See Create a Bucket using the XML API for additional request options.

Chilkat2 Java

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

public class ChilkatExample {

    public static void main(String[] args) {
        // This example will create a bucket in Google Cloud Storage using the XML API.

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

        AuthGoogle gAuth = new AuthGoogle();
        // 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);

        // Build the XML request body for creating a bucket.
        // See https://cloud.google.com/storage/docs/xml-api/put-bucket-create
        Xml xmlReqBody = new Xml();
        xmlReqBody.setTag("CreateBucketConfiguration");
        xmlReqBody.newChild2("LocationConstraint", "us");
        xmlReqBody.newChild2("StorageClass", "STANDARD");

        // Show the HTTP request body we'll be sending.
        System.out.println(xmlReqBody.getXml());

        // There are no query parameters...

        // The HOST header must be specified, because it needs to be different than
        // the domain previously passed to the Connect method.
        // The name of the bucket is the 1st part of the HOST header.
        rest.addHeader("Host", "chilkat-example-bucket.storage.googleapis.com");

        // The project ID is specified in an HTTP request header
        rest.addHeader("x-goog-project-id", "chilkattest-1050");

        // In this case, the response body is expected to be empty.  We can still
        // call FullRequestString.  We expect an empty string to be returned.
        String responseStr;
        try {
            responseStr = rest.fullRequestString("PUT", "/", xmlReqBody.getXml());
        } catch (ChilkatException e) {
            System.out.println(e.getLastErrorText());
            return;
        }

        // Check the response status code to make sure it is 200.
        int responseStatus = rest.getResponseStatusCode();
        System.out.println("Response Status Code = " + responseStatus);
    }
}