flask-header-log-request-id

Flask Header Log Request ID

A Flask middleware to log and set Request ID in the HTTP header.

Overview

This project provides a Flask middleware that ensures a unique Request ID is generated and logged for each incoming request. The Request ID is also included in the response back to the client.

Features

Generates a unique Request ID for each incoming request Logs the Request ID using a log filter Includes the Request ID in the response back to the client Installation To install the middleware, run the following command:

pip install flask_header_log_request_id

Usage

To use the middleware in your Flask application, simply import and initialize it:

from flask import Flask
from flask_header_log_request_id import RequestID

app = Flask(__name__)
RequestID(app)

Configuration

The middleware can be configured using the following settings:

• REQUEST_ID_UNIQUE_VALUE_PREFIX: a prefix that indicates a request ID should be considered unique

Logging

The middleware uses a log filter to inject the current request ID into log records. To use the log filter, add it to your logging configuration:

from flask_header_log_request_id.log_filter import RequestIDLogFilter

logging.basicConfig()
logger = logging.getLogger()
logger.addFilter(RequestIDLogFilter())

Example

Here is an example of how to use the middleware in a Flask application:

from flask import Flask
from flask_header_log_request_id import RequestID

app = Flask(__name__)
RequestID(app)

@app.route("/")
def index():
    return "Hello, World!"

if __name__ == "__main__":
    app.run()

In this example, the middleware will generate a unique Request ID for each incoming request and log it using the log filter. The Request ID will also be included in the response back to the client.