Racket Runtime

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A runtime environment enabling racket code to be run through AWS lambda. This version supports multiple versions of racket as well as errors. This is accomplished with a program which handles the dynamic import of a function from a module in racket. This implementation has been tested with aws SAM and racket version 7.9.

Requirements

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1. Docker
2. AWS SAM CLI

Tutorial

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1. A simple program requires the follow files in the base directory:
   1. Makefile aws uses this to define how custom runtimes are built
   2. Dockerfile defines the executable build container, you can change racket version here
   3. wrapper.rkt handles importing the correct function and calling it with the event
   4. Optional:
      1. An info.rkt is encouraged to ensure all dependencies are correctly installed
2. Write a sam template defining your function (an example is provided)
3. Call sam build [function name] or sam build to build all defined functions
4. (Optional) To test call echo "{event here}" | sam local invoke -e-
5. When ready to deploy call sam deploy

Caveats

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1. Performance is currently ~800ms for the example cat program
2. This has only been tested with racket 7.9