config.py

USE_FNORDMETRIC = False
FNORDMETRIC_REDIS_PREFIX = 'fnordmetric'
FNORDMETRIC_REDIS_HOST = '127.0.0.1'
FNORDMETRIC_REDIS_DB = 0
FNORDMETRIC_REDIS_PORT = 6379
FNORDMETRIC_REDIS_PASSWORD = None

example.py

class BaseResource(Resource):
    def dispatch_request(self, *args, **kwargs):
        resp = super(BaseResource, self).dispatch_request(*args, **kwargs)
        _, code, _ = unpack(resp)

        if code != 500 and current_app.config['USE_FNORDMETRIC']:
            path = '{0} {1}'.format(request.method, request.path)
            if request.query_string:
                path = '{0}?{1}'.format(path, request.query_string)

            extra = {'keyword': path}
            fnord = fnordmetric.FnordMetric(
                host=current_app.config['FNORDMETRIC_REDIS_HOST'],
                port=current_app.config['FNORDMETRIC_REDIS_PORT'],
                db=current_app.config['FNORDMETRIC_REDIS_DB'],
                password=current_app.config['FNORDMETRIC_REDIS_PASSWORD'],
                prefix=current_app.config['FNORDMETRIC_REDIS_PREFIX'],
            )
            fnord.event('search', extra=extra)
        return resp

fnordmetric.py

# -*- coding: utf-8 -*-
import os
import redis
import json
import base64


class FnordMetric:
    def __init__(self, host="localhost", port=6379, db=0,
                 password=None, prefix='fnordmetric'):
        self.redis = redis.Redis(
                        host=host, port=port, db=db, password=password)
        self.prefix = prefix

    def _queue_event(self, event):
        event_id = base64.urlsafe_b64encode(os.urandom(33))
        self.redis.set(
            "{0}-event-{1}".format(self.prefix, event_id), json.dumps(event))
        self.redis.expire(
            "{0}-event-{1}".format(self.prefix, event_id), 60)
        self.redis.lpush("{0}-queue".format(self.prefix), event_id)

    def event(self, eventtype, extra=None):
        event = {"_type": eventtype}
        if isinstance(extra, dict):
            event.update(extra)
        self._queue_event(event)