pythonのbottleでちょっとしたAPIサーバを作る

ちょっとしたAPIサーバがほしいとき、pythonで手軽に作ることができます。

requirements.txt

bottle==0.12.18

app.py

# -*- coding:utf-8 -*-
from bottle import (get, HTTPResponse, default_app)
from wsgiref.simple_server import WSGIServer, make_server
from socketserver import ThreadingMixIn
import json


class ThreadingWSGIServer(ThreadingMixIn, WSGIServer):
    """
    マルチスレッドなWSGIServer
    """
    pass

@get('/active')
def is_active():
    return 'OK'

@get('/testget')
def test_get():
    dummy_response = {
        'value': 'test'
    }

    # json形式で返す
    res = HTTPResponse(status=200, body=json.dumps(dummy_response))
    res.set_header('Content-Type', 'application/json')
    res.set_header('Access-Control-Allow-Origin', '*')
    return res

if __name__ == "__main__":
    app = default_app()
    server = make_server('0.0.0.0', 80, app, ThreadingWSGIServer)
    server.serve_forever()

Dockerfile

# docker build
FROM ubuntu:20.04

# python install
RUN apt-get update
RUN apt-get install -y python3 python3-pip

# Install python module
COPY requirements.txt /tmp/requirements.txt

RUN python3 -m pip install -r \
  /tmp/requirements.txt && \
  rm -rf /root/.cache

COPY app.py /var/app/

WORKDIR /var/app/

CMD ["python3", "/var/app/app.py"]

手順

docker build -t test-api .
docker run --rm -itd -p 8888:80 test-api

アクセスしてみる

curl http://localhost:8888/active
curl http://localhost:8888/testget