request-id-django-log 0.2.0
A simple way to implement request_id in Django
License: MIT

# Request ID Django Log

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## Install

`pip install request-id-django-log`

Update your `INSTALLED_APPS` and `MIDDLEWARE`
```python
INSTALLED_APPS = [
    ...
    "request_id_django_log",
]
```

```python
MIDDLEWARE = [
    ...
    "request_id_django_log.middleware.RequestIdDjangoLog",
]
```

## Configure

The following options are used by this library:

```python
REQUEST_ID_CONFIG = {
    "REQUEST_ID_HEADER": "HTTP_X_REQUEST_ID",
    "GENERATE_REQUEST_ID_IF_NOT_FOUND": True,
    "RESPONSE_HEADER_REQUEST_ID": "HTTP_X_REQUEST_ID",
}
```

- `REQUEST_ID_HEADER` is the header name which will hold the received request_id. This must be used when another system is responsible for generating the request_ids and sending them to your django application.
- `GENERATE_REQUEST_ID_IF_NOT_FOUND` If set to true, a new request_id will be generated if none was previously supplied.
- `RESPONSE_HEADER_REQUEST_ID` sets the name of the response header which will hold the value of the request_id.

With this configuration if the request have the header `X-REQUEST-ID` the library will use this header value.

## Logs

If you want your logs to have the request id, add the following lines to your logging dictionary configuration:

```python
LOGGING = {
    ...
    "filters": {"request_id": {"()": "request_id_django_log.filters.RequestIDFilter"}},
    "formatters": {
        "standard": {
            ...
            "format": "%(levelname)-8s [%(asctime)s] [%(request_id)s] %(name)s: %(message)s",
        },
        ...
    },
    "handlers": {
        "console": {
            ...
            "filters": ["request_id"],
            ...
        }
    },
    "loggers": {
        "": {"level": "INFO", "handlers": ["console"]},
        ...
    },
}
```

## Supported Versions

- `python 2.7` with Django `1.8`, `1.9` and `1.11`
- `python 3.5`, `3.6` and `3.7` with Django `1.8`, `1.9`, `1.11`, `2.0`, `2.1`, `2.2` and `3.0`