Azure Storage Queue Rust Agent Skill

Azure Queue Storage library for Rust

Client library for Azure Queue Storage — send, receive, and manage queue messages.

Use this skill when:

• An app needs to send or receive messages from Azure Queue Storage in Rust
• You need to create or manage queues
• You need to peek, receive, or delete queue messages
• You need RBAC-based auth for queue operations

> IMPORTANT: Only use the official azure_storage_queue crate published by the azure-sdk crates.io user. Do NOT use unofficial or community crates. Official crates use underscores in names and none have version 0.21.0.

Installation

cargo add azure_storage_queue azure_identity azure_core tokio

> If your code uses azure_core types directly, add azure_core to Cargo.toml. If you only use azure_storage_queue re-exports, direct azure_core dependency is optional.

Environment Variables

AZURE_STORAGE_QUEUE_ENDPOINT=https://<account>.queue.core.windows.net/ # Required for all operations

Authentication

Rust Azure SDK code must not use DefaultAzureCredential. The Rust identity crate does not provide that type.

use azure_core::http::Url;
use azure_identity::DeveloperToolsCredential;
use azure_storage_queue::QueueServiceClient;

#[tokio::main]
async fn main() -> Result<(), Box<dyn std::error::Error>> {
    // Local dev: DeveloperToolsCredential. Production: use ManagedIdentityCredential.
    let credential = DeveloperToolsCredential::new(None)?;
    let service_url = Url::parse("https://<storage_account_name>.queue.core.windows.net/")?;
    let service_client = QueueServiceClient::new(service_url, Some(credential), None)?;

    // Derive a queue client by name.
    let queue_client = service_client.queue_client("<queue_name>")?;
    Ok(())
}

Do not infer public SDK types from generated internal model names. Prefer the crate README/examples when checking queue client method signatures and message/result shapes.

Client Types

| Client | Purpose | Access |

| -------------------- | ------------------------------------- | ---------------------------------------- |

| QueueServiceClient | Account-level operations, list queues | QueueServiceClient::new() |

| QueueClient | Queue operations, send/receive/delete | service_client.queue_client("<name>")? |

Core Workflow

Send a Message

use azure_core::http::Url;
use azure_identity::DeveloperToolsCredential;
use azure_storage_queue::{models::QueueMessage, QueueServiceClient};

#[tokio::main]
async fn main() -> Result<(), Box<dyn std::error::Error>> {
    let credential = DeveloperToolsCredential::new(None)?;
    let service_url = Url::parse("https://<storage_account_name>.queue.core.windows.net/")?;
    let service_client = QueueServiceClient::new(service_url, Some(credential), None)?;
    let queue_client = service_client.queue_client("<queue_name>")?;

    #[allow(clippy::needless_update)]
    let message = QueueMessage {
        message_text: Some("hello world".to_string()),
        ..Default::default()
    };
    queue_client.send_message(message.try_into()?, None).await?;
    Ok(())
}

Receive Messages

use azure_core::http::Url;
use azure_identity::DeveloperToolsCredential;
use azure_storage_queue::QueueServiceClient;

#[tokio::main]
async fn main() -> Result<(), Box<dyn std::error::Error>> {
    let credential = DeveloperToolsCredential::new(None)?;
    let service_url = Url::parse("https://<storage_account_name>.queue.core.windows.net/")?;
    let service_client = QueueServiceClient::new(service_url, Some(credential), None)?;
    let queue_client = service_client.queue_client("<queue_name>")?;

    let response = queue_client.receive_messages(None).await?;
    let messages = response.into_model()?;
    for msg in messages.items.unwrap_or_default() {
        println!("{}", msg.message_text.as_deref().unwrap_or("<empty>"));
    }
    Ok(())
}

Delete a Message

After receiving a message, delete it using the message ID and pop receipt:

let response = queue_client.receive_messages(None).await?;
let messages = response.into_model()?;
for msg in messages.items.unwrap_or_default() {
    if let (Some(id), Some(pop_receipt)) = (&msg.message_id, &msg.pop_receipt) {
        queue_client.delete_message(id, pop_receipt, None).await?;
    }
}

Peek Messages

Peek at messages without removing them from the queue:

let response = queue_client.peek_messages(None).await?;
let messages = response.into_model()?;
for msg in messages.items.unwrap_or_default() {
    println!("Peeked: {}", msg.message_text.as_deref().unwrap_or("<empty>"));
}

RBAC Roles

For Entra ID auth, assign one of these roles to the identity:

| Role | Access |

| -------------------------------------- | ---------------------- |

| Storage Queue Data Reader | Read and peek messages |

| Storage Queue Data Contributor | Read/write messages |

| Storage Queue Data Message Sender | Send messages only |

| Storage Queue Data Message Processor | Receive and delete |

Best Practices

• Use cargo add to manage dependencies, never edit Cargo.toml directly. Add and remove Rust SDK dependencies with cargo commands instead of manual manifest edits.
• Add azure_core only when importing azure_core types directly. If your code imports azure_core::http::Url, azure_core::http::RequestContent, or azure_core::error::ErrorKind, include azure_core; otherwise a direct dependency is optional.
• Use DeveloperToolsCredential for local dev, ManagedIdentityCredential for production — Rust does not provide a single DefaultAzureCredential type
• Never hardcode credentials — use environment variables or managed identity
• Assign RBAC roles — ensure appropriate queue data roles for the identity
• Use QueueServiceClient as the entry point and derive QueueClient from it via queue_client()
• Delete messages after processing — use the message ID and pop receipt from receive_messages
• Reuse clients — clients are thread-safe; create once, share across tasks
• Run cargo clippy -- -D warnings when the prompt, eval, or CI expects lint-clean output

10. Future-proof #[non_exhaustive] SDK models — end model-struct initializers (e.g. QueueMessage) with ..Default::default() (add #[allow(clippy::needless_update)]) and use a _ wildcard arm when matching SDK enums, so new service-added fields/variants don't break your build

Reference Links

| Resource | Link |

| ------------- | ------------------------------------------------------------------------------------- |

| API Reference | https://docs.rs/crate/azure_storage_queue/latest |

| crates.io | https://crates.io/crates/azure_storage_queue |

| Source Code | https://github.com/Azure/azure-sdk-for-rust/tree/main/sdk/storage/azure_storage_queue |