AWS Chalice Simulator

Create a Chalice App

$ pip install chalice

$ chalice new-project my-api

$ cd my-api

AWS Chalice uses Python decorators to define API routes, similar to Flask. The code on the left shows a basic Chalice application with three endpoints.

What is AWS Chalice?

AWS Chalice is a Python serverless microframework that makes it easy to create and deploy serverless applications on AWS using Amazon API Gateway and AWS Lambda.

Local Testing

$ chalice local

Serving on localhost:8000

Test API Locally

Response:

{"hello": "world"}

Deploy to AWS

Chalice makes deploying to AWS simple with a single command: chalice deploy

When you deploy, Chalice handles:

Creating necessary IAM roles and policies
Packaging your Python code
Setting up API Gateway endpoints
Creating Lambda functions

API Gateway

Lambda

API Gateway Configuration

GET / lambda_function_0

GET /users/{user_id} lambda_function_1

POST /users lambda_function_2

Lambda Functions

Python Code

Package

Lambda

AWS Lambda Features

Automatic scaling

Pay only for what you use

Integrated security

Built-in fault tolerance

Event-driven execution

Live API

Test Live API

https://abcd1234.execute-api.us-east-1.amazonaws.com/api/

Response:

{"hello": "world"}