flask-aws-lambda
Python module to make Flask compatible with AWS Lambda for creating RESTful applications. Compatible with both REST and HTTP API gateways.
Installation
pip install flask-aws-lambda
Usage
This module works pretty much just like Flask. This allows you to run and develop this applicaiton locally just like you would in Flask. When ready deploy to Lambda, and configure the handler as:
my_python_file.app
Here is an example of what my_python_file.py
would look like:
import json
from flask import request
from flask_aws_lambda import FlaskAwsLambda
app = FlaskAwsLambda(__name__)
@app.route('/foo', methods=['GET', 'POST'])
def foo():
data = {
'form': request.form.copy(),
'args': request.args.copy(),
'json': request.json
}
return (
json.dumps(data, indent=4, sort_keys=True),
200,
{'Content-Type': 'application/json'}
)
if __name__ == '__main__':
app.run(debug=True)
Flask-RESTful
Nothing special here, this module works without issue with Flask-RESTful as well.
API Gateway
Configure your API Gateway with a {proxy+}
resource with an ANY
method. Your "Method Response" should likely include an application/json
"Response Body for 200" that uses the Empty
model.
Deploying
Consider using AWS Serverless Application Model (AWS SAM).
Lambda Test Event
If you wish to use the "Test" functionality in Lambda for your function, you will need a "API Gateway AWS Proxy" event. Check the event JSON objects in the events folder.
To update your test event, click "Actions" -> "Configure test event".