Writing AWS Lambda Functions in Rust

This repository contains a working example of how to create serverless lambda functions using Rust that can be deployed onto Amazon Web Services.

The project is elaborated in more detail on SilentByte | Writing AWS Lambda Functions in Rust.

Building & Deploying the Project

To build this project, it is required to have Rust/Cargo, NodeJS 12, and Docker installed. Having an AWS account with properly configured access keys is not mandatory for building the project but required for deployment.

Steps

1. Clone this repository.

2. Install the Serverless Framework: npm install -g serverless.

3. Within the project directory, run npm install.

4. Run the following command to build and test the lambda function. This will compile the Rust project and build a Docker image for execution, so it may take a while to complete.

   serverless invoke local -f lucky_numbers -d \
              '{"body": "{\"name\":\"SilentByte\", \"count\": 10}"}'

5. To deploy the project onto AWS, simply run serverless deploy. If the deployment succeeded, the CLI command will show you the URL of the API endpoint that has been created. You can then test against it using CURL by running:

   curl -X POST \
        -H "Content-Type: application/json" \
        -d '{"name":"SilentByte","count": 10}' \
        'https://wkawb52awb.execute-api.us-east-1.amazonaws.com/dev/lucky_numbers'

   With a result that should be similar to this JSON object:

   {
     "message": "Hi, 'SILENTBYTE'. Your lucky numbers are:",
     "numbers": [8, 23, 26, 21, 32, 24, 8, 40, 34, 2]
   }

License

See LICENSE.txt.