The azure-storage npm package is a client library for working with Azure Storage services, including Blob, File, Queue, and Table storage. It allows developers to interact with these services programmatically, enabling tasks such as uploading and downloading files, managing queues, and working with table data.

What are azure-storage's main functionalities?

Blob Storage

Blob Storage allows you to store large amounts of unstructured data, such as text or binary data. The code sample demonstrates how to upload a text file to a blob container.

const azure = require('azure-storage');
const blobService = azure.createBlobService();

// Upload a text file to a container
blobService.createBlockBlobFromText('mycontainer', 'myblob', 'Hello, World!', function(error, result, response) {
  if (!error) {
    console.log('Blob uploaded successfully');
  }
});

File Storage

File Storage provides a way to store and access files in the cloud. The code sample shows how to create a file share and upload a text file to it.

const azure = require('azure-storage');
const fileService = azure.createFileService();

// Create a share and upload a file
fileService.createShareIfNotExists('myshare', function(error, result, response) {
  if (!error) {
    fileService.createFileFromText('myshare', '', 'myfile', 'Hello, World!', function(error, result, response) {
      if (!error) {
        console.log('File uploaded successfully');
      }
    });
  }
});

Queue Storage

Queue Storage provides reliable messaging for workflow processing and communication between different parts of your application. The code sample demonstrates how to create a queue and add a message to it.

const azure = require('azure-storage');
const queueService = azure.createQueueService();

// Create a queue and add a message
queueService.createQueueIfNotExists('myqueue', function(error, result, response) {
  if (!error) {
    queueService.createMessage('myqueue', 'Hello, World!', function(error, result, response) {
      if (!error) {
        console.log('Message added to queue');
      }
    });
  }
});

Table Storage

Table Storage offers a NoSQL key-value store for rapid development using massive semi-structured datasets. The code sample shows how to create a table and insert an entity into it.

const azure = require('azure-storage');
const tableService = azure.createTableService();

// Create a table and insert an entity
const entGen = azure.TableUtilities.entityGenerator;
const task = {
  PartitionKey: entGen.String('tasks'),
  RowKey: entGen.String('1'),
  description: entGen.String('Task 1'),
  dueDate: entGen.DateTime(new Date(Date.UTC(2023, 10, 1)))
};

tableService.createTableIfNotExists('mytable', function(error, result, response) {
  if (!error) {
    tableService.insertEntity('mytable', task, function(error, result, response) {
      if (!error) {
        console.log('Entity inserted');
      }
    });
  }
});

Other packages similar to azure-storage

Legacy Azure Storage SDK for JavaScript

This project provides the legacy Node.js package azure-storage which is browser compatible to consume and manage Microsoft Azure Storage Services like Azure Blob Storage, Azure Queue Storage, Azure Files and Azure Table Storage

Please note, newer packages @azure/storage-blob, @azure/storage-queue and @azure/storage-file are available as of November 2019 and @azure/data-tables is available as of June 2021 for the individual services. While the legacy azure-storage package will continue to receive critical bug fixes, we strongly encourage you to upgrade.

Below are a set of links with information on both the latest and legacy packages for the different Storage services from Azure. For more, please read State of the Azure SDK 2021

Package	Version	Description	API Reference Links	Migration Guide Links
@azure/storage-blob	v12	The next generation SDK for Azure Blob Storage	API Reference for Blob SDK	Migration Guide from `azure-storage` to `@azure/storage-blob`
@azure/storage-queue	v12	The next generation SDK for Azure Queue Storage	API Reference for Queues SDK	Migration Guide from `azure-storage` to `@azure/storage-queue`
@azure/storage-file-share	v12	The next generation SDK for Azure Files	API Reference for Files SDK	Migration Guide from `azure-storage` to `@azure/storage-file-share`
@azure/data-tables	v12	The next generation SDK for Azure Table Storage	API Reference for Tables SDK	Migration Guide from `azure-storage` to `@azure/data-tables`
azure-storage	v2	Legacy Storage SDK in this repository (Blob/Queue/File/Table, callback style)	API Reference for legacy Storage SDK
@azure/arm-storage	v7 & above	Management SDKs including Storage Resource Provider APIs	API Reference for Storage Management SDK

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Package last updated on 04 Jan 2022

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