falcon-stats 0.5

A simple middleware to gather request-response statistics from the falcon REST framework

# Falcon Stats
`falcon-stats` is a simple usage statistics middleware for the [Falcon REST framework](https://falconframework.org/). It should primarily enable later analysis that separately gets relevant data from the DB.

## Data Collection
*Falcon Stats* gathers data on incoming requests and their processed responses. Currently the following features are saved:

- Response Timestamp
- Processing Time between Request and Response
- Request Method
- User Agent
- Request URI (domain, endpoint and query string)
- Remote IP (closest to the server)
- Request Content-Type
- Response Status
- Request Content Length

Note that logging and database access add overhead to the processing time. Furthermore it will add a few milliseconds on every response.

## Installation
... is as easy as

```
pip install falcon-stats
```

Installation assumes you have the packages found in *requirements.txt* installed. Please note the development build of SQLAlchemy that is pulled from the official git repository.

## Usage
In your main falcon file import the `FalconStatsMiddleware` and add it to the middleware list of your API instance. That's it.

```python
from falconstats import FalconStatsMiddleware
...
fsm = FalconStatsMiddleware(
db_user="root",
db_pass="my-secret-pw",
db_addr="localhost:3306",
db_name="stats"
)
app = falcon.API(middleware=[fsm])
```

This will connect to the given MySQL database and start to add request-response data. For now only MySQL is supported - *PRs welcome*!

## Compatibility
The middleware is used with Python 3.5 and 3.6. I don't plan on supporting Python 2.7 but it still might work.