Generator for Alexa Voice Interface definitions

Installation

npm install alexa-vui-generator

Usage

const generator = require('alexa-vui-generator');

generator.createLanguageModel(options, locale);

options is an object which configures the generation of the language model

• processors is an array of functions that manipulate the provided VUI model.
• invocation is a string that denotes the invocation name of the skill
• pretty defines if the output should be pretty printed. By default it is minified.
• skipOutput can be set to true to skip writing the output file

locale is the locale that is generated and denotes the file name. (models/{locale}.json). It is forwarded to the processor functions as the second argument.

outputDir is the folder to write the VUI (defaults to './models')

Using intents.yaml

You can use the provided function readIntentsFromYAML as a function in processors that reads the intents from a file called intents.yaml and adds the Amazon default intents.

Furthermore it expands the provided texts to allow variations in the language. See example for usage.

intents.yaml

MySuperIntent:
  texts:
    - (Play|Start|Open) the {channel} (channel|)
  slots:
    channel: ChannelName

This resolves to the following intent definition:

{
  "name": "MySuperIntent",
  "samples": [
    "play the {channel} channel",
    "start the {channel} channel",
    "open the {channel} channel",
    "play the {channel}",
    "start the {channel}",
    "open the {channel}"
  ],
  "slots": [
    {
      "name": "channel",
      "type": "ChannelName",
      "samples": []
    }
  ]
}

To support different locales you can provide an object as texts with the locales as keys instead of a string array.

intents.yaml

MySuperIntent:
  texts:
    'en-US':
      - (Play|Start|Open) the {channel} (channel|)
    'de-DE':
      - (Spiele|Starte|Öffne) den {channel} (channel|Kanal|)
  slots:
    channel: ChannelName

To use dialog support you can specify the slot in an expanded way:

intents.yaml

CalculateIntent:
  texts:
    - ja (bitte|)
    - ausrechnen
  slots:
    age:
      type: AMAZON.NUMBER
      elicitationRequired: true
      confirmationRequired: false
      prompt: Wie alt bist du?
      texts:
        - Ich bin {age} (Jahre alt|)
        - '{age}'

Using types.yaml

You can use the provided function readTypesFromYAML as a function in processors that reads the slot types from a file called types.yaml.

types.yaml

ChannelName:
  rock:
    - rock
    - rock music

This resolves to the following intent definition:

{
  "name": "ChannelName",
  "values": [
    {
      "id": "rock",
      "name": {
        "value": "rock",
        "synonyms": [
          "rock",
          "rock music"
        ]
      }
    }
  ]
}

To support different locales you can provide an object as values with the locales as keys instead of a string array.

types.yaml

ChannelName:
  rock:
    'en-US':
      - rock
      - rock music
    'de-DE':
      - rock
      - rock musik

Other generator functions used as processors

createAudioPlayerIntents - Creates the intents needed when using the AudioPlayer functionality. createDisplayIntents - Creates the intents needed when using the Display functionality.