Node.js

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. Node.js

NODEJS_PRELUDE

function chilkatExample() {

    var success = false;

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

    var rest = new chilkat.Rest();

    //  Connect to the Azure Storage Blob Service
    var bTls = true;
    var port = 443;
    var bAutoReconnect = true;
    //  In this example, the storage account name is "chilkat".
    success = rest.Connect("chilkat.blob.core.windows.net",port,bTls,bAutoReconnect);
    if (success !== true) {
        console.log(rest.LastErrorText);
        return;
    }

    //  Provide Azure Cloud credentials for the REST call.
    var azAuth = new chilkat.AuthAzureStorage();
    azAuth.AccessKey = "AZURE_ACCESS_KEY";
    //  The account name used here should match the 1st part of the domain passed in the call to Connect (above).
    azAuth.Account = "chilkat";
    azAuth.Scheme = "SharedKey";
    azAuth.Service = "Blob";
    //  This causes the "x-ms-version: 2021-08-06" header to be automatically added.
    azAuth.XMsVersion = "2021-08-06";
    success = rest.SetAuthAzureStorage(azAuth);

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

    var fileStream = new chilkat.Stream();
    fileStream.SourceFile = "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".
    var responseStr = rest.FullRequestStream("PUT","/test/hamlet.xml",fileStream);
    if (rest.LastMethodSuccess !== true) {
        console.log(rest.LastErrorText);
        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.ResponseStatusCode == 201) {
        console.log("File uploaded.");
    }
    else {
        //  Examine the request/response to see what happened.
        console.log("response status code = " + rest.ResponseStatusCode);
        console.log("response status text = " + rest.ResponseStatusText);
        console.log("response header: " + rest.ResponseHeader);
        console.log("response body (if any): " + responseStr);
        console.log("---");
        console.log("LastRequestStartLine: " + rest.LastRequestStartLine);
        console.log("LastRequestHeader: " + rest.LastRequestHeader);
    }


}

chilkatExample();