lambda_http(cargo lambda start): failed to serialize lambda-url event #528
Description
Hi, I'm really new into rust & rust with lambda (more into lambda with node.js), and I'm not sure if I encounter a bug or I did something wrong.
I'm unable to test my APIGateway lambda function made with lambda_http.
I have this little about function :
use lambda_http::{run, service_fn, Body, Error, Request, Response};
use serde_json::json;
use chrono::Utc;
async fn function_handler(_: Request) -> Result<Response<Body>, Error> {
let now: i64 = Utc::now().timestamp_millis();
let result = json!({
"name": "test",
"runtime": "rust",
"time": now,
});
let resp = Response::builder()
.status(200)
.header("content-type", "application/json")
.body(result.to_string().into())
.map_err(Box::new)?;
Ok(resp)
}
#[tokio::main]
async fn main() -> Result<(), Error> {
tracing_subscriber::fmt()
.with_max_level(tracing::Level::INFO)
.with_target(false)
.without_time()
.init();
run(service_fn(function_handler)).await
}Nothing very complex, as you may see. When deployed to AWS using CDK, everythings works as expected, I got the following response as JSON :
{
"name": "test",
"runtime": "rust",
"time": 1662629579658
}But when I want to test the fonction locally, following what is explained in the readme (using cargo lambda start then hitting the http://localhost:9000/lambda-url/about/ address on my browser), I got the following response in the browser:
{
"type": "https://httpstatuses.com/500",
"status": 500,
"title": "Internal Server Error",
"detail": "failed to serialize lambda-url event"
}and the following error in my console:
› cargo lambda start
INFO invoke server listening on 127.0.0.1:9000
INFO starting lambda function function="about" manifest="Cargo.toml"
[Running 'cargo run --bin about']
Finished dev [unoptimized + debuginfo] target(s) in 0.16s
Running `target/debug/about`
ERROR Error("data did not match any variant of untagged enum LambdaRequest", line: 0, column: 0)
[Finished running. Exit status: 0]
If it can helps, here's my Cargo.toml file:
[package]
name = "test"
version = "0.0.1"
edition = "2021"
[dependencies]
chrono = "0.4.22"
lambda_http = { version = "0.6.1", default-features = false, features = ["apigw_rest"] }
lambda_runtime = "0.6.1"
serde_json = "1.0.85"
tokio = { version = "1", features = ["macros"] }
tracing = { version = "0.1", features = ["log"] }
tracing-subscriber = { version = "0.3", default-features = false, features = ["fmt"] }
[[bin]]
name = "about"
path = "src/handlers/about.rs"Did I do something wrong?
Thanks in advance,