Function mu_alb::runtime::listen_events

pub async fn listen_events<F, Fut, A, B>(handler: F) -> RuntimeResult where
    F: Fn(A) -> Fut + Sync + Send,
    Fut: Future<Output = B> + Send,
    A: AlbDeserialize<A> + Send,
    B: AlbSerialize, 

Listen to ALB events. Unlike mu_runtime::listen_events, this method expects you to respect the AWS Application Load Balancer contract by returning the appropriate response (defined by aws_lambda_events::event::alb::AlbTargetGroupRequest).

It’s expected the handler argument to be an async function, as exemplified below.

use mu_alb::*;
use aws_lambda_events::event::alb::{
    AlbTargetGroupRequest,
    AlbTargetGroupResponse
};

#[tokio::main]
async fn main() -> RuntimeResult {
  listen_events(|req: AlbTargetGroupRequest| {
    say_hello()
  }).await
}

async fn say_hello() -> AlbTargetGroupResponse {
 response::create_as_plain_text(
   200, Some("Hello World".to_string()))
}