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A dependency-free AWS Lambda custom runtime for Elixir, built on :inets/:httpc and the OTP-bundled JSON module, meant to run on a Lambda layer providing OTP.
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aws_lambda_runtime
CHANGELOG.md
CHANGELOG.md
# Changelog
All notable changes to this project will be documented in this file.
The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
## [0.1.0] - 2026-08-19
### Added
- `AWS.Lambda.Runtime` — the custom runtime loop: long-polls the Lambda
Runtime API, dispatches each invocation to your handler within a
supervised, deadline-bounded task, and reports the result or failure back
to Lambda without crashing the sandbox.
- `AWS.Lambda.Runtime.API` — a dependency-free `:inets`/`:httpc` client for
the Lambda Runtime API (`2018-06-01`).
- `AWS.Lambda.Runtime.Context` — per-invocation context assembled from the
`Lambda-Runtime-*` response headers and the function's environment.
- `AWS.Lambda.Runtime.Handler` — the behaviour your function implements, plus
resolution of the `_HANDLER` environment variable / compile-time config.
- `AWS.Lambda.Runtime.Application` — the OTP application supervising the
runtime loop, with a `config :aws_lambda_runtime, start_runtime: false`
escape hatch for environments (like this library's own test suite) that
shouldn't start it.
- `AWS.Lambda.Runtime.MixRelease` and `AWS.Lambda.Runtime.Release` — `mix
release` configuration and steps that package a function for Lambda's
`provided.al2023` runtime, including the `bootstrap` entrypoint and
Lambda-tuned `vm.args`/`env.sh`.
- `mix aws_lambda.build` — packages a function's Lambda release inside the
Elixir builder Docker image and downloads the resulting deployment zip.
[0.1.0]: https://github.com/GRoguelon/aws_lambda_runtime/releases/tag/v0.1.0