Building Serverless Applications with Rust on AWS Lambda – AWS Compute Blog
6 days ago
- #AWS Lambda
- #Rust
- #Serverless
- AWS Lambda now supports Rust as a generally available programming language, allowing for business-critical serverless applications.
- Rust is favored for its high performance, memory safety, and developer experience, comparable to C++ with the reliability of higher-level languages.
- The post guides through building and deploying Rust-based Lambda functions using Cargo Lambda, a third-party open-source tool.
- Prerequisites include an AWS account, AWS CLI, Rust (version 1.70+), Node.js 20+, and AWS CDK.
- Steps include installing Cargo Lambda, creating an HTTP Lambda function, and deploying a serverless API with AWS CDK.
- Cargo Lambda simplifies building and deploying Rust Lambda functions, integrating with AWS CDK for infrastructure as code.
- The example includes creating an HTTP-based Lambda function, testing locally, and deploying to AWS.
- Logging in Rust Lambda functions is handled through Tracing libraries, with logs sent to Amazon CloudWatch.
- Testing can be done locally using `cargo lambda watch` or via `curl` to the Lambda emulator.
- Deployment involves using `cargo lambda deploy` and managing infrastructure with AWS CDK, including API Gateway for serverless APIs.
- Cleanup instructions are provided to remove deployed resources and avoid ongoing charges.