Learn how to integrate Datadog backend errors with OpenReplay session replays to extend your monitoring and debugging capabilities.

1. Go to Datadog > Integrations > APIs and generate the API Key, or use the existing one.
2. On the same page, click on Application Keys and generate a new application key.

In your OpenReplay account, follow these 3 steps to complete the session replays correlations with Datadog backend errors.

1. Go to Preferences > Integrations in OpenReplay.
2. Select the Backend Logging tab.
3. Select the project to which you want to enable the Datadog integration: Locate the Datadog integration card > Click on it.

In the Datadog integration sidebar enter:

1. Datadog API Key
2. Application Key

1. Click on Add to test the connection

To link a Datadog event with the recorded user session, a unique session ID openReplaySession.id needs to be propagated from your frontend to your backend on each request you want to track. This can be done using a custom HTTP header.

// JavaScript Example for for Single Page Applications (SPA):
const sessionId = tracker.getSessionID(); 

const headers = {
  'Content-Type': 'application/json',
};

if (sessionId) {
  headers['openReplaySession.id'] = sessionId;
}

// Make the API request
fetch('https://www.your-backend.com/api/endpoint', {
  method: 'GET', // or 'POST', 'PUT', etc.
  headers,
  // ...other options
})
  .then(response => {
    // Handle response
  })
  .catch(error => {
    // Handle error
  });

Below is an example in Python using the logging module to automatically include the openReplaySession.id in your logs.

import logging
from flask import Flask, request, g

app = Flask(__name__)

# Configure the root logger
logging.basicConfig(level=logging.INFO)
logger = logging.getLogger()

# Create a custom logging filter
class OpenReplayFilter(logging.Filter):
    def filter(self, record):
        session_id = getattr(g, 'openreplay_session_id', None)
        if session_id:
            record.msg = f"[openReplaySession.id={session_id}] {record.msg}"
        return True

# Add the filter to the logger
logger.addFilter(OpenReplayFilter())

@app.before_request
def before_request():
    # Extract the session ID from headers and store it in the Flask `g` object
    g.openreplay_session_id = request.headers.get('openReplaySession.id')

@app.route('/api/endpoint')
def api_endpoint():
    # Your logic here

    # Log an event with the session ID automatically included
    logger.info("Endpoint accessed")

    return 'Success', 200

@app.errorhandler(Exception)
def handle_exception(e):
    # Log the error with the session ID automatically included
    logger.error(f"Error: {str(e)}")
    return 'Internal Server Error', 500

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

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