Java

REST File Streaming Upload

See more Azure Cloud Storage Examples

Demonstrates how to stream the REST body from a file. This example demonstrates a REST upload to the Azure Cloud Storage service. Chilkat2 Java

import com.chilkatsoft.chilkat2.AuthAzureStorage;
import com.chilkatsoft.chilkat2.ChilkatException;
import com.chilkatsoft.chilkat2.Rest;
import com.chilkatsoft.chilkat2.Stream;

public class ChilkatExample {

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

        Rest rest = new Rest();

        // Connect to the Azure Storage Blob Service
        boolean bTls = true;
        int port = 443;
        boolean bAutoReconnect = true;
        // In this example, the storage account name is "chilkat".
        try {
            rest.connect("chilkat.blob.core.windows.net", port, bTls, bAutoReconnect);
        } catch (ChilkatException e) {
            System.out.println(e.getLastErrorText());
            return;
        }

        // Provide Azure Cloud credentials for the REST call.
        AuthAzureStorage azAuth = new AuthAzureStorage();
        azAuth.setAccessKey("AZURE_ACCESS_KEY");
        // The account name used here should match the 1st part of the domain passed in the call to Connect (above).
        azAuth.setAccount("chilkat");
        azAuth.setScheme("SharedKey");
        azAuth.setService("Blob");
        // This causes the "x-ms-version: 2021-08-06" header to be automatically added.
        azAuth.setXMsVersion("2021-08-06");
        rest.setAuthAzureStorage(azAuth);

        // Set some request headers.
        rest.addHeader("x-ms-blob-content-disposition", "attachment; filename=\"hamlet.xml\"");
        rest.addHeader("x-ms-blob-type", "BlockBlob");
        rest.addHeader("x-ms-meta-m1", "v1");
        rest.addHeader("x-ms-meta-m2", "v2");

        // Note: The application does not need to explicitly set the following
        // headers: x-ms-date, Authorization, and Content-Length.  These headers
        // are automatically set by Chilkat.

        Stream fileStream = new Stream();
        fileStream.setSourceFile("qa_data/xml/hamlet.xml");

        // Upload to the Azure Cloud Storage service.
        // The file is streamed, so the full file never has to completely reside in memory.
        // The file is uploaded to the container named "test".
        String responseStr;
        try {
            responseStr = rest.fullRequestStream("PUT", "/test/hamlet.xml", fileStream);
        } catch (ChilkatException e) {
            System.out.println(e.getLastErrorText());
            return;
        }

        // When successful, the Azure Storage service will respond with a 201 response code,
        // with an empty body.  Therefore, in the success condition, the responseStr is empty.
        if (rest.getResponseStatusCode() == 201) {
            System.out.println("File uploaded.");
        } else {
            // Examine the request/response to see what happened.
            System.out.println("response status code = " + rest.getResponseStatusCode());
            System.out.println("response status text = " + rest.getResponseStatusText());
            System.out.println("response header: " + rest.getResponseHeader());
            System.out.println("response body (if any): " + responseStr);
            System.out.println("---");
            System.out.println("LastRequestStartLine: " + rest.getLastRequestStartLine());
            System.out.println("LastRequestHeader: " + rest.getLastRequestHeader());
        }
    }
}