35 lines
1.2 KiB
Python
35 lines
1.2 KiB
Python
import json
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from flask import request, current_app, jsonify
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from flask_classful import FlaskView
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from db import redis_client
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class SyncView(FlaskView):
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def post(self):
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remote_uuid = request.json['uuid']
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remote_ip = request.remote_addr
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# load the currently available consumer list from the redis database
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consumer_list = json.loads((redis_client.get("consumer_list") or b"{}").decode('utf-8'))
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if remote_uuid not in consumer_list.keys():
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# display newly registered consumer
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current_app.logger.info(f"New consumer registered (unknown UUID): {remote_uuid} at {remote_ip}")
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else:
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if consumer_list[remote_uuid]['ip'] != remote_ip:
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# log address changes
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current_app.logger.info(f"Address of consumer {remote_uuid} changed to {remote_ip}")
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# update consumer list redis databasse
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consumer_list.update(
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{remote_uuid: {"ip": remote_ip}}
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)
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redis_client.set("consumer_list", json.dumps(consumer_list).encode('utf-8'))
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# return with the current UUID
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response = {
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"uuid": current_app.config['LOCAL_UUID']
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}
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return jsonify(response)
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