azeventhubs

An unofficial and experimental Azure Event Hubs client library for Rust.

This crate follows a similar structure to that of the Azure SDK for .Net, and thus it should be familiar to anyone who has used the dotnet SDK. This crate is still in development, and not all features are implemented yet.

Examples

Event Hub Producer Example

use azeventhubs::producer::{
EventHubProducerClient, EventHubProducerClientOptions, SendEventOptions,
};

#[tokio::main]
async fn main() -> Result<(), Box<dyn std::error::Error>> {
    let mut producer_client =
        EventHubProducerClient::new_from_connection_string(
            "<CONNECTION_STRING>", // Replace with your connection string
            "<EVENT_HUB_NAME>".to_string(), // Replace with your hub name
            EventHubProducerClientOptions::default()
       ).await?;

    let partition_ids = producer_client.get_partition_ids().await?;

    let event = "Hello, world to first partition!";
    let options = SendEventOptions::new().with_partition_id(&partition_ids[0]);
    producer_client.send_event(event, options).await?;

    producer_client.close().await?;

    Ok(())
}

Event Hub Consumer Example

use futures_util::StreamExt;
use azeventhubs::consumer::{EventHubConsumerClient, EventHubConsumerClientOptions, EventPosition, ReadEventOptions};

#[tokio::main]
async fn main() -> Result<(), Box<dyn std::error::Error>> {
    // Create a consumer client
    let mut consumer_client =
        EventHubConsumerClient::new_from_connection_string(
            EventHubConsumerClient::DEFAULT_CONSUMER_GROUP_NAME,
            "<CONNECTION_STRING>", // Replace with your connection string
            "<EVENT_HUB_NAME>".to_string(), // Replace with your hub name
            EventHubConsumerClientOptions::default(),
        ).await?;

    let partition_ids = consumer_client.get_partition_ids().await?;
    let starting_position = EventPosition::earliest();
    let options = ReadEventOptions::default();

    // Get a stream of events from the first partition
    let mut stream = consumer_client
        .read_events_from_partition(&partition_ids[0], starting_position, options)
        .await?;

    // Receive 30 events
    let mut counter = 0;
    while let Some(event) = stream.next().await {
        let event = event?;
        let body = event.body()?;
        let value = std::str::from_utf8(body)?;
        log::info!("{:?}", value);

        log::info!("counter: {}", counter);
        counter += 1;
        if counter > 30 {
            break;
        }
    }
    // Close the stream
    stream.close().await?;

    // Close the consumer client
    consumer_client.close().await?;

    Ok(())
}

What is implemented and what is not?

TLS Support

Communication between a client application and an Azure Service Event Hub namespace is encrypted using Transport Layer Security (TLS). The TLS implementation is exposed to the user through the corresponding feature flags (please see the feature flag section below). The user should ensure either the rustls or native-tls feature is enabled, and one and only one TLS implementation must be enabled. Enabling both features is not supported and will result in an error.

The native-tls feature is enabled by default, and it will use the native-tls crate to provide TLS support. The rustls feature will use the rustls crate and webpki-roots crate to provide TLS support.

Feature Flags

This crate supports the following feature flags:

WebAssembly Support

WebAssembly is NOT supported yet.

MSRV

1.75.0

License: MIT