text: Server-Sent Events for Flask
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  A Flask extension for HTML5 server-sent events support, powered by Redis.
  Example of sending events:
  from flask import Flask from flask_sse import sse app = Flask(__name__) app.config["REDIS_URL"] = "redis://localhost" app.register_blueprint(sse, url_prefix='/stream') @app.route('/send') def send_message(): sse.publish({"message": "Hello!"}, type='greeting') return "Message sent!"
  To receive events on a webpage, use Javascript to connect to the event stream, like this:
  var source = new EventSource("{{ url_for('sse.stream') }}"); source.addEventListener('greeting', function(event) { var data = JSON.parse(event.data); // do what you want with this data }, false);
  The full documentation for this project is hosted on ReadTheDocs.
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