# Check user data of your Issuer with a webhook

If you want to receive the data in your backend, create a webhook and copy the URL of the webhook in the page (“Webhook URL of your application”).

Below an example of a webhook code in python :

```
from flask import Flask, jsonify, request

app = Flask(__name__)
app.config.update(SECRET_KEY = "abcdefgh")
issuer_secret = '5be650e6-5226-11ed-8298-0a1628958560'

@app.route('/webhook', methods=['POST'])
def dapp_webhook() :
    if request.headers.get('key') != issuer_secret :
        return jsonify('Forbidden'), 403
    data = request.get_json()
    if data['event'] == 'ISSUANCE' :
        print(data)
        return jsonify('ok')

if __name__ == '__main__':  # use Gunicorn for production
    IP = "127.0.0.1"
    app.run( host = IP, port=4000, debug =True)
```

The webhook tests the request against the issuer secret and gets the data transfered by the user as a json strucure with the event ‘ISSUANCE’


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://altme-documentation.gitbook.io/altmes-documentation/altme-saas/beacon-integration/check-user-data-of-your-issuer-with-a-webhook.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.