examples/apps/widgets.py
#!/usr/bin/env/ python2.7
import argparse
import logging
from flask import Flask, abort, jsonify, request
import redis
app = Flask(__name__)
logger = logging.getLogger(__name__)
REDIS_PORT = 9999
@app.route('/api/widgets')
def get_widgets():
conn = redis.Redis("127.0.0.1", port=REDIS_PORT)
widgets = conn.hgetall("widgets")
return jsonify(widgets=widgets)
@app.route('/api/widgets', methods=["POST"])
def create_widget():
conn = redis.Redis("127.0.0.1", port=REDIS_PORT)
if "widget" not in request.form or not request.form["widget"]:
abort(400)
conn.hincrby("widgets", request.form["widget"], 1)
return jsonify(success=True)
@app.route("/health")
def healthcheck():
conn = redis.Redis("127.0.0.1", port=REDIS_PORT)
try:
passed = conn.ping()
except Exception:
logger.exception("Error pinging redis service!")
passed = False
if not passed:
abort(503)
return "a-ok!"
parser = argparse.ArgumentParser(description="Toy web server.")
parser.add_argument(
"port", type=int, default=8888,
help="Port to listen on."
)
if __name__ == '__main__':
args = parser.parse_args()
app.run(host="0.0.0.0", port=args.port, debug=True)