Grafana simplejson datasource annotations endpoint

index.py

@app.route('/annotations', methods=['POST'])
def annotations():
    req = request.get_json()
    data = [
        {
            "annotation": 'This is the annotation',
            "time": (convert_to_time_ms(req['range']['from']) +
                     convert_to_time_ms(req['range']['to'])) / 2,
            "title": 'Deployment notes',
            "tags": ['tag1', 'tag2'],
            "text": 'Hm, something went wrong...'
        }
    ]
    return jsonify(data)