aws-lambda-rust-runtime/examples/http-basic-lambda/src/main.rs at main · aws/aws-lambda-rust-runtime · GitHub

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
use lambda_http::{run, service_fn, tracing, Body, Error, Request, Response};

/// This is the main body for the function.
/// Write your code inside it.
/// There are some code examples in the Runtime repository:
/// - <https://github.com/aws/aws-lambda-rust-runtime/tree/main/examples>
async fn function_handler(_event: Request) -> Result<Response<Body>, Error> {
    // Extract some useful information from the request

    // Return something that implements IntoResponse.
    // It will be serialized to the right response event automatically by the runtime
    let resp = Response::builder()
        .status(200)
        .header("content-type", "text/html")
        .body("Hello AWS Lambda HTTP request".into())
        .map_err(Box::new)?;
    Ok(resp)
}

#[tokio::main]
async fn main() -> Result<(), Error> {
    // required to enable CloudWatch error logging by the runtime
    tracing::init_default_subscriber();

    run(service_fn(function_handler)).await
}