Grafana alert

app.py

import falcon
import json

class CORSComponent(object):
    def process_response(self, req, resp, resource, req_succeeded):
        resp.set_header('Access-Control-Allow-Origin', '*')

class AlertHistory(object):
    alerts = []
    def aq(self):
        pass
    def rel(self):
        pass
    def push(self, data):
        self.alerts.append(data)

    def list(self):
        ret = self.alerts[:]
        self.alerts = []
        return ret

class ReceiveAlert(object):
    def __init__(self, hist):
        self.hist = hist
        print("receive init")

    def on_get(self, req, resp):
        resp.status = falcon.HTTP_200
        resp.body = "receive"

    def on_post(self, req, resp):
        resp.status = falcon.HTTP_200
        resp.body = "receive"
        data = req.media
        self.hist.push(req.media)

class SendAlert(object):
    def __init__(self, hist):
        self.hist = hist
        print("sender init")

    def on_get(self, req, resp):
        resp.status = falcon.HTTP_200
        resp.body = json.dumps(self.hist.list())


api = falcon.API(middleware=[
    CORSComponent()
])
# Enable a simple CORS policy for all responses
alert_history = AlertHistory()

receiver = ReceiveAlert(alert_history)
api.add_route('/recv', receiver)

sender = SendAlert(alert_history)
api.add_route('/send', sender)