AWS Chalice: Quick Start

In this post, I am going to use Chalice to deploy a sample application on AWS API Gateway and Lambda.

What is Chalice?

Chalice is an AWS framework for writing serverless applications in

Python. https://aws.github.io/chalice/quickstart.html

Similar technologies include SAM. See https://aws.github.io/chalice/faq.html for more detail.

Install

% python3 -m pip install chalice

Note: you need to have aws credentials set. See https://docs.aws.amazon.com/cli/latest/userguide/cli-configure-quickstart.html

Create Project

% chalice new-project helloworld
Your project has been generated in ./helloworld

% cd helloworld 

% tree -a
.
├── .chalice
│   └── config.json
├── .gitignore
├── app.py
└── requirements.txt

Run Locally

% chalice local
Serving on http://127.0.0.1:8000

% curl http://127.0.0.1:8000
{"hello":"world"}

Deploy & Cleanup

% chalice deploy
...
Rest API URL: https://xxxxxxxxxx.execute-api.ap-northeast-1.amazonaws.com/api/

% curl https://xxxxxxxxxx.execute-api.ap-northeast-1.amazonaws.com/api/
{"hello":"world"}

% chalice delete