RFC: Event Hander - Api Gateway Support · Issue #413 · aws-powertools/powertools-lambda-typescript (original) (raw)
Important
The RFC for this feature has concluded (#3500), a big thank you to everyone who took the time to read and engage with it. You can follow the progress of the implementation in this milestone and here (#3251).
Description of the feature request
Event Handler Support for powertools-typescript, to handle API Gateway events & Appsync events
Problem statement
Lambda Powertools for python is a one-stop-shop for all variants of lambda we develop today : api-driven, event-driven, etc. Event Handler helps with that. This way, we don't have to introduce other framework/library to handle api-gateway, appsync, etc.
Summary
Event Handler Support for powertools-typescript eventHandler, to handle API Gateway events
Motivation
There are Nodejs routing frameworks in Typescript & Javascript - expressjs, koa, nestjs, fastify are very opinionated to their ecosystem and also have a heavy-foot print for serverless workloads. We need a light-weight routing library that is part of the powertools ecosystem for Typescript similar to the Powertools-Python
Proposal
Create a new package event-handler and start with API Gateway Proxy Event Handler and potentially add more features like - AppSync, ALB and Lambda Function URL. The package should be light-weight only dependent on Powertools Core libraries and not introduce any external packages
UX should support:
Code examples
https://awslabs.github.io/aws-lambda-powertools-python/latest/core/event_handler/api_gateway/
Benefits for you and the wider AWS community
- powertools will be the only major library/framework you will ever need for lambda development
- makes it easier for development teams to focus on creating middlewares, custom library around this one libarary, rather than creating different libraries for express, etc.