| The app behaviour | |
| Applications env | |
| Start type | |
| Vsn field |
Every OTP application implements the app behaviour. The module exports three callbacks: start/2, stop/1, and config_changed/3. The start callback returns a supervisor tree, and the stop callback tears it down.
-behaviour(application).
-start(Type, Args).
-stop(State).
-config_changed/3 is optional.
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Article author: Arthur Isaev
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