Live Streaming
To see how streaming works, let’s create a controller called LiveAssetsController at app/controllers/live_assets_controller.rb that includes the ActionController::Live functionality and streams “hello world” continuously:
| live_assets/1_live/app/controllers/live_assets_controller.rb | |
| | class LiveAssetsController < ActionController::Base |
| | include ActionController::Live |
| | |
| | def hello |
| | while true |
| | response.stream.write "Hello World\n" |
| | sleep 1 |
| | end |
| | rescue IOError |
| | response.stream.close |
| | end |
| | end |
Our controller provides an action named hello that streams Hello World every second. If, for any reason, the connection between the server and the client drops, response.stream.write will fail with IOError, which we ...
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