JavaScript

Azure Storage Blob Simple Upload

See more Azure Cloud Storage Examples

Demonstrates the simplest possible upload to Azure Storage. The contents of a string variable are uploaded to a blob file in Azure Cloud Storage. JavaScript

var success = false;

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

var rest = new CkRest();

// 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 CkAuthAzureStorage();
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=\"helloWorld.txt\"");
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.

// Upload the string "Hello World!" to the file named "helloWorld.txt" located in the container named "test".
var responseStr = rest.FullRequestString("PUT","/test/helloWorld.txt","Hello World!");
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);
}