This is a demo project showing some of my tool's features:

• Defining infrastructure using generated synapse-provider:* modules
• Programmatically bundling individual closures into infra
• Calling Zig functions from TypeScript
• Deploying, testing, tearing down

Components

add.zig exports a function adding two arguments plus an environment value.

lambda.ts defines a class for creating Lambda functions from JS closures.

main.ts creates and tests two Lambdas.

Prerequisites

• Latest version of Synapse: https://github.com/Cohesible/synapse#installation
• Valid AWS credentials in the usual places (~/.aws/credentials or environment variables)
• unzip on Linux

Commands

synapse test runs install, compile, and deploy automatically if needed, then executes the tests.

Example output:

Deploying (8/8)
✓ + fn <LambdaFunction> (17s)
✓ + test

aarch64 (EXTRA_VAL: 67) (589ms)
x64 (EXTRA_VAL: 21) (467ms)

On a fresh machine install can take a minute, mostly due to the large AWS Terraform provider.

Subsequent changes to the code will reuse the deployment, updating as little as possible.

synapse destroy tears everything down:

Destroying (8/8)
✓ - test
✓ - fn <LambdaFunction> (1s)