aws-lambda-rust-runtime VS book

I've been writing more and more about the benefits of Rust and Lambda quite a bit lately and I plan to take advantage of them in this customizer. Additionally, I've leveraged the Lambda Runtime project that includes data structures for the Lambda Events that I'll encounter while working with these payloads.

The Lambda Rust Runtime project bridges that gap between SDK support and enhanced developer experience. Now this code IS flagged as experimental as it is subject to change. Didn't I just say above that I don't like experimental software in production? For something like a critical SDK into AWS, yes. But for something that is mostly data structures and working with different Lambda events, I don't have an issue. I'm comfortable with recommending builders look into this repository. I've also been fortunate to contribute to it and believe that the libraries included will make builder's lives easier. End of the day, if the experimental piece is a hold-up, a Lambda with Rust will be fine without it.

If you are building Rust applications that are deployed in Lambdas, it's well worth your time to check out this AWS project. And nestled inside that repository is a Lambda Events crate that helps with the serde/deserde of different payloads to be encountered when running Lambdas.

Feel free to take look at the GitHub repo and ask any questions you have there, we're always happy to help in what we can: https://github.com/awslabs/aws-lambda-rust-runtime

Rust on Lambda's using containers as the deployment artifact are also very good, i'd say a perfect match. Low artifact size, low cpu+memory usage, fast execution. I think AWS must be using increasingly using Rust on Lambda internally from the talks I've seen them publish and the work gone in to https://github.com/awslabs/aws-lambda-rust-runtime.

For simple REST API's there's not much extra effort in using Rust once you are familiar.

Check out the official AWS Lambda Rust project https://github.com/awslabs/aws-lambda-rust-runtime. It has a bunch of examples and we’ll designed. I got up and running knowing minimal Rust very quickly.

The official https://github.com/awslabs/aws-lambda-rust-runtime seems well architected.

Hi, maybe check out https://github.com/awslabs/aws-lambda-rust-runtime there's some examples in there.. But essentially you can build a Lambda function and deploy to your AWS account with this toolset.

use aws_lambda_events::apigw::{ ApiGatewayCustomAuthorizerRequestTypeRequest, ApiGatewayCustomAuthorizerResponse, ApiGatewayCustomAuthorizerPolicy, IamPolicyStatement, }; use lambda_runtime::{run, service_fn, Error, LambdaEvent}; use serde_json::json; #[tokio::main] async fn main() -> Result<(), Error> { tracing_subscriber::fmt() .with_ansi(false) .without_time() .with_max_level(tracing_subscriber::filter::LevelFilter::INFO) .init(); run(service_fn(function_handler)).await } pub async fn function_handler(event: LambdaEvent) -> Result { // do something with the event payload let method_arn = event.payload.method_arn.unwrap(); // for example we could use the authorization header if let Some(token) = event.payload.headers.get("authorization") { // do something with the token // my custom logic return Ok(custom_authorizer_response( "ALLOW", "some_principal", &method_arn, )); } Ok(custom_authorizer_response( &"DENY".to_string(), "", &method_arn)) } pub fn custom_authorizer_response(effect: &str, principal: &str, method_arn: &str) -> ApiGatewayCustomAuthorizerResponse { let stmt = IamPolicyStatement { action: vec!["execute-api:Invoke".to_string()], resource: vec![method_arn.to_owned()], effect: Some(effect.to_owned()), }; let policy = ApiGatewayCustomAuthorizerPolicy { version: Some("2012-10-17".to_string()), statement: vec![stmt], }; ApiGatewayCustomAuthorizerResponse { principal_id: Some(principal.to_owned()), policy_document: policy, context: json!({ "email": principal }), // https://github.com/awslabs/aws-lambda-rust-runtime/discussions/548 usage_identifier_key: None, } }

FYI, there’s an offical rust “runtime” in the works: https://github.com/awslabs/aws-lambda-rust-runtime

My first port of call was to google learn rust which lead me to "the book". The book is a first steps guide written by the rust community for newbies (or Rustlings as they're called) to gain a 'solid grasp of the language'.

Before Prodzilla, I’d read 'The Book' a couple of times, and had made my way through Rustlings, but hadn’t yet built a serious project in Rust.

To answer your last question;

Start with the Rust book.

https://doc.rust-lang.org/book/

Then do Rustlings until the syntax becomes muscle memory.

Then join the Discord and start doing little projects.

You won’t get up to the proficiency of other languages as quickly in Rust. It takes longer. For me it’s taking a lot longer, but I enjoy it.

Before diving into these repositories, familiarize yourself with Rust and its development ecosystem. The official Rust book is an excellent resource for developers at all levels. Each repository has documentation on how to contribute, covering code style, issue tracking, and pull requests.

This is my third Rust book after the official book and Rust in Action. The other two books are great, but they were too theoretical for me. I'm a slow learner and had much trouble grokking Rust's features and idiosyncrasies. When I was done with these books, I was lost and unsure of what I could do.

It's the same reason everything digital and downloadable isn't free: there's a cost to create it and there's a value to it.

For a language developer to charge for a book about that language, I think that's a completely valid way to make some money off of their work.

Even the Rust book, "The Rust Programming Language" is available freely online [0], but also as a print and ebook for sale via NoStarchPress [1].

[0] https://doc.rust-lang.org/book/

[1] https://nostarch.com/rust-programming-language-2nd-edition

You know you can just read it online right now in 2 different variants It does contain some systems programming.

I am looking at The Book (https://doc.rust-lang.org/book/), but hoped there was an amazing person on youtube.

Yeah, I'll build something, finally trying webassembly.

https://doc.rust-lang.org/book/ https://github.com/rust-lang/rustlings https://doc.rust-lang.org/rust-by-example/