azure-storage-queue-ts

Author's original introduction

Azure Queue Storage JavaScript/TypeScript SDK (@azure/storage-queue) for message queue operations. Use for sending, receiving, peeking, and deleting messages in queues. Supports visibility timeout, message encoding, and batch operations. Triggers: "queue storage", "@azure/storage-queue", "QueueServiceClient", "QueueClient", "send message", "receive message", "dequeue", "visibility timeout".

SkillPi interpretation

Tasks

azure-storage-queue-ts

Audience

Use the scope in the original author introduction.

Inputs and outputs

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Software, accounts and paid services

This azure-storage-queue-ts package contains Microsoft Azure SDK documentation and examples, not a runtime-verified installer. Check SDK names/versions, tenant/subscription and actual endpoints; grant only task-specific least privilege. Never put administrator credentials or real secrets in samples, logs or commits. Connected cloud services may receive selected text, documents, audio, messages, logs or other input and incur charges; confirm scope, redaction and costs first. Ask the user to confirm each resource creation/update/deletion, key/access change or outbound message and test with disposable resources before production. Replace and verify placeholder endpoints and samples. SkillPi checked pinned source, complete attachments and static/antivirus evidence only; it did not run the SDK, verify service compatibility or authorize cloud access.

Limits and differences

Original author introduction preserved; Chinese is a corresponding translation. Examples were not run by SkillPi; versions, compatibility and outcomes are author claims.

Testing

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Security rating and access scope

caution · Static evidence review; not a runtime safety guarantee.

This azure-storage-queue-ts package contains Microsoft Azure SDK documentation and examples, not a runtime-verified installer. Check SDK names/versions, tenant/subscription and actual endpoints; grant only task-specific least privilege. Never put administrator credentials or real secrets in samples, logs or commits. Connected cloud services may receive selected text, documents, audio, messages, logs or other input and incur charges; confirm scope, redaction and costs first. Ask the user to confirm each resource creation/update/deletion, key/access change or outbound message and test with disposable resources before production. Replace and verify placeholder endpoints and samples. SkillPi checked pinned source, complete attachments and static/antivirus evidence only; it did not run the SDK, verify service compatibility or authorize cloud access.

Before use, confirm and authorize actual file access, external services and network destinations in your host. This review grants no runtime permissions.

Original SKILL.md

---
name: azure-storage-queue-ts
description: |
  Azure Queue Storage JavaScript/TypeScript SDK (@azure/storage-queue) for message queue operations. Use for sending, receiving, peeking, and deleting messages in queues. Supports visibility timeout, message encoding, and batch operations. Triggers: "queue storage", "@azure/storage-queue", "QueueServiceClient", "QueueClient", "send message", "receive message", "dequeue", "visibility timeout".
license: MIT
metadata:
  author: Microsoft
  version: "1.0.0"
  package: '@azure/storage-queue'
---

# @azure/storage-queue (TypeScript/JavaScript)

SDK for Azure Queue Storage operations — send, receive, peek, and manage messages in queues.

## Installation

```bash
npm install @azure/storage-queue @azure/identity
```

**Current Version**: 12.x  
**Node.js**: >= 18.0.0

## Environment Variables

```bash
AZURE_STORAGE_ACCOUNT_NAME=<account-name>
AZURE_STORAGE_ACCOUNT_KEY=<account-key>
# OR connection string
AZURE_STORAGE_CONNECTION_STRING=DefaultEndpointsProtocol=https;AccountName=...
AZURE_TOKEN_CREDENTIALS=prod # Required only if DefaultAzureCredential is used in production
```

## Authentication

### Microsoft Entra Token Credential (Recommended)

```typescript
import { QueueServiceClient } from "@azure/storage-queue";
import { DefaultAzureCredential, ManagedIdentityCredential } from "@azure/identity";

// Local dev: DefaultAzureCredential. Production: set AZURE_TOKEN_CREDENTIALS=prod or AZURE_TOKEN_CREDENTIALS=<specific_credential>
const credential = new DefaultAzureCredential({requiredEnvVars: ["AZURE_TOKEN_CREDENTIALS"]});
// Or use a specific credential directly in production:
// See https://learn.microsoft.com/javascript/api/overview/azure/identity-readme?view=azure-node-latest#credential-classes
// const credential = new ManagedIdentityCredential();

const accountName = process.env.AZURE_STORAGE_ACCOUNT_NAME!;
const client = new QueueServiceClient(
  `https://${accountName}.queue.core.windows.net`,
  credential
);
```

### Connection String

```typescript
import { QueueServiceClient } from "@azure/storage-queue";

const client = QueueServiceClient.fromConnectionString(
  process.env.AZURE_STORAGE_CONNECTION_STRING!
);
```

### StorageSharedKeyCredential (Node.js only)

```typescript
import { QueueServiceClient, StorageSharedKeyCredential } from "@azure/storage-queue";

const accountName = process.env.AZURE_STORAGE_ACCOUNT_NAME!;
const accountKey = process.env.AZURE_STORAGE_ACCOUNT_KEY!;

const sharedKeyCredential = new StorageSharedKeyCredential(accountName, accountKey);
const client = new QueueServiceClient(
  `https://${accountName}.queue.core.windows.net`,
  sharedKeyCredential
);
```

### SAS Token

```typescript
import { QueueServiceClient } from "@azure/storage-queue";

const accountName = process.env.AZURE_STORAGE_ACCOUNT_NAME!;
const sasToken = process.env.AZURE_STORAGE_SAS_TOKEN!;

const client = new QueueServiceClient(
  `https://${accountName}.queue.core.windows.net${sasToken}`
);
```

## Client Hierarchy

```
QueueServiceClient (account level)
└── QueueClient (queue level)
    └── Messages (send, receive, peek, delete)
```

## Queue Operations

### Create Queue

```typescript
const queueClient = client.getQueueClient("my-queue");
await queueClient.create();

// Or create if not exists
await queueClient.createIfNotExists();
```

### List Queues

```typescript
for await (const queue of client.listQueues()) {
  console.log(queue.name);
}

// With prefix filter
for await (const queue of client.listQueues({ prefix: "task-" })) {
  console.log(queue.name);
}
```

### Delete Queue

```typescript
await queueClient.delete();

// Or delete if exists
await queueClient.deleteIfExists();
```

### Get Queue Properties

```typescript
const properties = await queueClient.getProperties();
console.log("Approximate message count:", properties.approximateMessagesCount);
console.log("Metadata:", properties.metadata);
```

### Set Queue Metadata

```typescript
await queueClient.setMetadata({
  department: "engineering",
  priority: "high",
});
```

## Message Operations

### Send Message

```typescript
const queueClient = client.getQueueClient("my-queue");

// Simple message
await queueClient.sendMessage("Hello, World!");

// With options
await queueClient.sendMessage("Delayed message", {
  visibilityTimeout: 60, // Hidden for 60 seconds
  messageTimeToLive: 3600, // Expires in 1 hour
});

// JSON message (must be string)
const task = { type: "process", data: { id: 123 } };
await queueClient.sendMessage(JSON.stringify(task));
```

### Receive Messages

```typescript
// Receive up to 32 messages (default: 1)
const response = await queueClient.receiveMessages({
  numberOfMessages: 10,
  visibilityTimeout: 30, // 30 seconds to process
});

for (const message of response.receivedMessageItems) {
  console.log("Message ID:", message.messageId);
  console.log("Content:", message.messageText);
  console.log("Dequeue Count:", message.dequeueCount);
  console.log("Pop Receipt:", message.popReceipt);
  
  // Process the message...
  
  // Delete after processing
  await queueClient.deleteMessage(message.messageId, message.popReceipt);
}
```

### Peek Messages

Peek without removing from queue (no visibility timeout).

```typescript
const response = await queueClient.peekMessages({
  numberOfMessages: 5,
});

for (const message of response.peekedMessageItems) {
  console.log("Message ID:", message.messageId);
  console.log("Content:", message.messageText);
  // Note: No popReceipt - cannot delete peeked messages
}
```

### Update Message

Extend visibility timeout or update content.

```typescript
// Receive a message
const response = await queueClient.receiveMessages();
const message = response.receivedMessageItems[0];

if (message) {
  // Update content and extend visibility
  const updateResponse = await queueClient.updateMessage(
    message.messageId,
    message.popReceipt,
    "Updated content",
    60 // New visibility timeout in seconds
  );
  
  // Use new popReceipt for subsequent operations
  console.log("New pop receipt:", updateResponse.popReceipt);
}
```

### Delete Message

```typescript
// After receiving
const response = await queueClient.receiveMessages();
const message = response.receivedMessageItems[0];

if (message) {
  await queueClient.deleteMessage(message.messageId, message.popReceipt);
}
```

### Clear All Messages

```typescript
await queueClient.clearMessages();
```

## Message Processing Patterns

### Basic Worker Pattern

```typescript
async function processQueue(queueClient: QueueClient): Promise<void> {
  while (true) {
    const response = await queueClient.receiveMessages({
      numberOfMessages: 10,
      visibilityTimeout: 30,
    });

    if (response.receivedMessageItems.length === 0) {
      // No messages, wait before polling again
      await sleep(5000);
      continue;
    }

    for (const message of response.receivedMessageItems) {
      try {
        await processMessage(message.messageText);
        await queueClient.deleteMessage(message.messageId, message.popReceipt);
      } catch (error) {
        console.error(`Failed to process message ${message.messageId}:`, error);
        // Message will become visible again after timeout
      }
    }
  }
}

async function processMessage(content: string): Promise<void> {
  const task = JSON.parse(content);
  // Process task...
}

function sleep(ms: number): Promise<void> {
  return new Promise((resolve) => setTimeout(resolve, ms));
}
```

### Poison Message Handling

```typescript
const MAX_DEQUEUE_COUNT = 5;

async function processWithPoisonHandling(
  queueClient: QueueClient,
  poisonQueueClient: QueueClient
): Promise<void> {
  const response = await queueClient.receiveMessages({
    numberOfMessages: 10,
    visibilityTimeout: 30,
  });

  for (const message of response.receivedMessageItems) {
    if (message.dequeueCount > MAX_DEQUEUE_COUNT) {
      // Move to poison queue
      await poisonQueueClient.sendMessage(message.messageText);
      await queueClient.deleteMessage(message.messageId, message.popReceipt);
      console.log(`Moved message ${message.messageId} to poison queue`);
      continue;
    }

    try {
      await processMessage(message.messageText);
      await queueClient.deleteMessage(message.messageId, message.popReceipt);
    } catch (error) {
      console.error(`Processing failed (attempt ${message.dequeueCount}):`, error);
    }
  }
}
```

### Batch Processing with Visibility Extension

```typescript
async function processBatchWithExtension(queueClient: QueueClient): Promise<void> {
  const response = await queueClient.receiveMessages({
    numberOfMessages: 1,
    visibilityTimeout: 60,
  });

  const message = response.receivedMessageItems[0];
  if (!message) return;

  let popReceipt = message.popReceipt;

  // Start visibility extension timer
  const extensionInterval = setInterval(async () => {
    try {
      const updateResponse = await queueClient.updateMessage(
        message.messageId,
        popReceipt,
        message.messageText,
        60 // Extend by another 60 seconds
      );
      popReceipt = updateResponse.popReceipt;
    } catch (error) {
      console.error("Failed to extend visibility:", error);
    }
  }, 45000); // Extend every 45 seconds

  try {
    await longRunningProcess(message.messageText);
    await queueClient.deleteMessage(message.messageId, popReceipt);
  } finally {
    clearInterval(extensionInterval);
  }
}
```

## Message Encoding

By default, messages are Base64 encoded. You can customize this:

```typescript
import { QueueClient } from "@azure/storage-queue";

// Custom encoder/decoder for plain text
const queueClient = new QueueClient(
  `https://${accountName}.queue.core.windows.net/my-queue`,
  credential,
  {
    messageEncoding: "text", // "base64" (default) or "text"
  }
);

// Or with custom encoder
const customQueueClient = new QueueClient(
  `https://${accountName}.queue.core.windows.net/my-queue`,
  credential,
  {
    messageEncoding: {
      encode: (message: string) => Buffer.from(message).toString("base64"),
      decode: (message: string) => Buffer.from(message, "base64").toString(),
    },
  }
);
```

## SAS Token Generation (Node.js only)

### Generate Queue SAS

```typescript
import {
  QueueSASPermissions,
  generateQueueSASQueryParameters,
  StorageSharedKeyCredential,
} from "@azure/storage-queue";

const sharedKeyCredential = new StorageSharedKeyCredential(accountName, accountKey);

const sasToken = generateQueueSASQueryParameters(
  {
    queueName: "my-queue",
    permissions: QueueSASPermissions.parse("raup"), // read, add, update, process
    startsOn: new Date(),
    expiresOn: new Date(Date.now() + 3600 * 1000), // 1 hour
  },
  sharedKeyCredential
).toString();

const sasUrl = `https://${accountName}.queue.core.windows.net/my-queue?${sasToken}`;
```

### Generate Account SAS

```typescript
import {
  AccountSASPermissions,
  AccountSASResourceTypes,
  AccountSASServices,
  generateAccountSASQueryParameters,
} from "@azure/storage-queue";

const sasToken = generateAccountSASQueryParameters(
  {
    services: AccountSASServices.parse("q").toString(), // queue
    resourceTypes: AccountSASResourceTypes.parse("sco").toString(),
    permissions: AccountSASPermissions.parse("rwdlacupi"),
    expiresOn: new Date(Date.now() + 24 * 3600 * 1000),
  },
  sharedKeyCredential
).toString();
```

## Error Handling

```typescript
import { RestError } from "@azure/storage-queue";

try {
  await queueClient.sendMessage("test");
} catch (error) {
  if (error instanceof RestError) {
    switch (error.statusCode) {
      case 404:
        console.log("Queue not found");
        break;
      case 400:
        console.log("Bad request - message too large or invalid");
        break;
      case 403:
        console.log("Access denied");
        break;
      case 409:
        console.log("Queue already exists or being deleted");
        break;
      default:
        console.error(`Storage error ${error.statusCode}: ${error.message}`);
    }
  }
  throw error;
}
```

## TypeScript Types Reference

```typescript
import {
  // Clients
  QueueServiceClient,
  QueueClient,

  // Authentication
  StorageSharedKeyCredential,
  AnonymousCredential,

  // SAS
  QueueSASPermissions,
  AccountSASPermissions,
  AccountSASServices,
  AccountSASResourceTypes,
  generateQueueSASQueryParameters,
  generateAccountSASQueryParameters,

  // Messages
  DequeuedMessageItem,
  PeekedMessageItem,
  QueueSendMessageResponse,
  QueueReceiveMessageResponse,
  QueueUpdateMessageResponse,

  // Queue
  QueueItem,
  QueueGetPropertiesResponse,

  // Errors
  RestError,
} from "@azure/storage-queue";
```

## Message Limits

| Limit | Value |
|-------|-------|
| Max message size | 64 KB |
| Max visibility timeout | 7 days |
| Max time-to-live | 7 days (or -1 for infinite) |
| Max messages per receive | 32 |
| Default visibility timeout | 30 seconds |

## Best Practices

1. **Use `DefaultAzureCredential` for local development; use `ManagedIdentityCredential` or `WorkloadIdentityCredential` for production**
2. **Always delete after processing** — Prevent duplicate processing
3. **Handle poison messages** — Move failed messages to a dead-letter queue
4. **Use appropriate visibility timeout** — Set based on expected processing time
5. **Extend visibility for long tasks** — Update message to prevent timeout
6. **Use JSON for structured data** — Serialize objects to JSON strings
7. **Check dequeueCount** — Detect repeatedly failing messages
8. **Use batch receive** — Receive multiple messages for efficiency

## Platform Differences

| Feature | Node.js | Browser |
|---------|---------|---------|
| `StorageSharedKeyCredential` | ✅ | ❌ |
| SAS generation | ✅ | ❌ |
| DefaultAzureCredential | ✅ | ❌ |
| Anonymous/SAS access | ✅ | ✅ |
| All message operations | ✅ | ✅ |

Copyright and license notice

    MIT License

    Copyright (c) Microsoft Corporation.

    Permission is hereby granted, free of charge, to any person obtaining a copy
    of this software and associated documentation files (the "Software"), to deal
    in the Software without restriction, including without limitation the rights
    to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
    copies of the Software, and to permit persons to whom the Software is
    furnished to do so, subject to the following conditions:

    The above copyright notice and this permission notice shall be included in all
    copies or substantial portions of the Software.

    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
    OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
    SOFTWARE