Crate azure_functions

Azure Functions for Rust

The Azure Functions for Rust crate supports creating Azure Functions with Rust.

The following Azure Functions trigger bindings are supported:

• Blob trigger
• Cosmos DB trigger
• Event Grid trigger
• Event Hub trigger
• Generic trigger
• HTTP trigger
• Service Bus trigger
• Queue trigger
• Timer trigger

The following Azure Functions input bindings are supported:

• Blob input
• Cosmos DB input
• Generic input
• SignalR connection info input
• Table input

The following Azure Functions output bindings are supported:

• Blob output
• Cosmos DB output
• Event Hub output
• Generic output
• HTTP output
• Queue output
• SendGrid email message output
• Service Bus output
• SignalR group action output
• SignalR message output
• Table output
• Twilio SMS message output

Eventually more bindings will be implemented, including custom binding data.

Example

Start by installing the Azure Functions for Rust SDK:

$ cargo install azure-functions-sdk

Create a new Azure Functions for Rust application:

$ cargo func new-app hello && cd hello

Create a HTTP-triggered function:

$ cargo func new http -n hello

This generates src/functions/hello.rs with the following contents:

use azure_functions::{
    bindings::{HttpRequest, HttpResponse},
    func,
};

#[func]
pub fn hello(req: HttpRequest) -> HttpResponse {
    "Hello from Rust!".into()
}

Azure Functions are implemented by applying a #[func] attribute to a Rust function.

Run the application with cargo func run:

$ cargo func run

The above Azure Function can be invoked with http://localhost:8080/api/hello.

The expected response would be Hello from Rust!.

Re-exports

pub use azure_functions_codegen::func;

pub use azure_functions_codegen::export;

Modules

bindings	Module for Azure Functions bindings.
blob	Module for blob storage types.
event_hub	Module for Event Hub types.
generic	Module for generic Azure Function bindings.
http	Module for HTTP types.
send_grid	Module for SendGrid types.
signalr	Module for SignalR types.
timer	Module for timer types.

Structs

Context

Represents context about an Azure Function invocation.

Functions

worker_main	The main entry point for the Azure Functions for Rust worker.
worker_main_with_extensions	The main entry point for the Azure Functions for Rust worker.