AWS Lambda support for ASGI applications
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Mangum
Mangum is an adapter for running ASGI applications in AWS Lambda to handle Function URL, API Gateway, ALB, and Lambda@Edge events.
Documentation: https://mangum.fastapiexpert.com/
Features
-
Event handlers for API Gateway HTTP and REST APIs, Application Load Balancer, Function URLs, and CloudFront Lambda@Edge.
-
Compatibility with ASGI application frameworks, such as Starlette, FastAPI, Quart and Django.
-
Support for binary media types and payload compression in API Gateway using GZip or Brotli.
-
Works with existing deployment and configuration tools, including Serverless Framework and AWS SAM.
-
Startup and shutdown lifespan events.
Installation
pip install mangum
Example
from mangum import Mangum
async def app(scope, receive, send):
await send(
{
"type": "http.response.start",
"status": 200,
"headers": [[b"content-type", b"text/plain; charset=utf-8"]],
}
)
await send({"type": "http.response.body", "body": b"Hello, world!"})
handler = Mangum(app, lifespan="off")
Or using a framework:
from fastapi import FastAPI
from mangum import Mangum
app = FastAPI()
@app.get("/")
def read_root():
return {"Hello": "World"}
@app.get("/items/{item_id}")
def read_item(item_id: int, q: str = None):
return {"item_id": item_id, "q": q}
handler = Mangum(app, lifespan="off")
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