Alexa Utterance Expander

Write your Amazon Alexa utterances file in a simple-to-use DSL, and compile it to the full utterances. Re-use placeholders, and let the compiler handle the work of creating the many variations.

Usage

Programmatically

Install

npm install alexa-utterance-expander

Require the library

const UtteranceExpander = require('alexa-utterance-expander');

Define place holders

console.log(UtteranceExpander(`
[game] game
[game] match
[game] round

[play] play
[play] start

PlayIntent [play] a [game]
`));

generates

PlayIntent play a game
PlayIntent play a match
PlayIntent play a round
PlayIntent start a game
PlayIntent start a match
PlayIntent start a round

Some built-in placeholders

• PLEASE
• YES
• NO
• NEXT
• REPEAT
• STOP
• CANCEL
• STARTOVER
• HELP

From Gulp#

gulp.task('compile', function (cb) {
    fs.readFile(path.join(__dirname,'interaction-model','utterances-src.txt'),function(err,file){
          if(err) return cb(err);
               var expanded = UtteranceExpander(file);
                    fs.writeFile(path.join(__dirname,'interaction-model','utterances.txt'),expanded,cb);
                       
        });
         
    });

From Jovo Language Model

Clone this repository and use convert.js tool to convert from Jovo language model to UtteranceExpander DSL:

convert.js [input | output] inputFile outputFile

en-US.json

{
	"invocation": "my game",
	"intents": [
		{
			"name": "PlayIntent",
			"phrases": [
				"{play} a {game}"
			],
			"inputs": [
				{
					"name": "play",
					"type": "Play"
				},
				{
					"name": "game",
					"type": "Game"
				}
			]
		}
	],
	"inputTypes": [
		{
			"name": "Play",
			"values": [
				{
					"value": "play"
				},
				{
					"value": "start"
				}
			]
		},
		{
			"name": "Game",
			"values": [
				{
					"value": "game",
					"synonyms": [
						"match",
						"round"
					]
				}
			]
		}
	],
	"alexa": {
		"interactionModel": {
			"languageModel": {
				"intents": [
					{
						"name": "AMAZON.CancelIntent",
						"samples": []
					},
					{
						"name": "AMAZON.HelpIntent",
						"samples": []
					},
					{
						"name": "AMAZON.StopIntent",
						"samples": []
					},
					{
						"name": "AMAZON.NavigateHomeIntent",
						"samples": []
					}
				]
			}
		}
	}
}

$ node convert.js input en-US.json formattedInput

formattedInput

[play] play
[play] start

[game] game
[game] match
[game] round

PlayIntent [play] a [game]

$ node convert.js output formattedInput output

output

PlayIntent

play a game
start a game
play a match
start a match
play a round
start a round

You can copy these utterances to the intent bulk editor in alexa developer console.