⚠️ INCOMPLETE CHAPTER: This chapter is left incomplete in the original source material. The content below provides a basic introduction to Chalice, but a full chapter would include detailed examples, deployment instructions, and comparisons with other frameworks.
We got to the last of our frameworks for developing and deploying Python applications in AWS Lambda. Chalice is Amazon’s own framework for building serverless applications with Python.
Chalice is AWS’s official framework for building serverless applications with Python, offering a Flask-like experience with built-in AWS integrations. Unlike Zappa or the Serverless Framework, Chalice was designed specifically for AWS Lambda from the ground up.
Chalice provides several advantages for AWS-focused development:
Here’s a simple Chalice application:
from chalice import Chalice
app = Chalice(app_name='hello-world')
@app.route('/')
def index():
return {'hello': 'world'}
@app.route('/hello/{name}', methods=['GET'])
def hello_name(name):
return {'hello': name}
@app.route('/items', methods=['POST'])
def create_item():
user_data = app.current_request.json_body
return {'created': user_data}
pip install chalice
chalice new-project helloworld
cd helloworld
chalice deploy
As shown in Chapter 9’s benchmarks, Chalice demonstrates excellent performance:
| Feature | Chalice | Zappa | Serverless Framework |
|---|---|---|---|
| AWS Focus | Native | Good | Multi-cloud |
| Learning Curve | Low | Medium | Medium |
| Cold Start | Fastest | Slow | Medium |
| Flexibility | AWS Only | High | Highest |
For detailed tutorials and advanced usage, consult the official AWS Chalice documentation.
| ← Previous: Chapter 7 - Deployment Tools II: Serverless Framework | Next: Chapter 9 - Understanding Function Performance → |