Enabling your Amazon Lex V2 bot to be interrupted by the user
When you start a bidirectional audio stream between an Amazon Lex V2 bot and your application, you can configure the bot to listen for user input while it is sending back a prompt. This input can be set as an interrupt. With this, the user can interrupt the prompt before the bot has finished playing it back. You can use this configuration for situations where the user might already know the answer to a question, such as when they're being prompted to provide a CVV code.
A bot knows when the user interrupts a prompt when it detects user
input before your application can send back a
PlaybackCompletion event. When the user interrupts
a bot, the bot sends a
PlaybackInterruptionEvent.
By default, the user can interrupt any prompt that the bot is streaming to your application. You can change this setting in the Amazon Lex V2 console.
You can change how a user can respond to a prompt by editing a slot. A slot is part of an intent, and it is the means by which the user provides you the information you want. Each slot has a prompt for the user to provide you with that information. To learn more about slots, see Amazon Lex V2 core concepts.
To change whether the user can interrupt a prompt (console)
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Sign in to AWS Management Console and open the Amazon Lex V2 console at Amazon Lex V2 console
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Under Bots, select a bot.
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Under Language, select the language of the bot.
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Choose View intents.
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Choose the intent.
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For Slots, choose a slot.
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Under Advanced options, choose Slot prompts.
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Choose More prompt options.
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Select or deselect Users can interrupt the prompt when it is being read.
You can test this functionality by creating a bot with two slots and specifying that users can't interrupt a prompt for one slot. If you interrupt an interruptible prompt, the bot sends a playback interruption event. If you interrupt an uninterruptible, the prompt continues to play.
