Actions on Google Client Library
This client library makes it easy to create Actions for the Google Assistant and supports Dialogflow, Actions SDK (v2), and Smart Home fulfillment.
- Client Library GitHub repo
- Client Library reference docs
- Actions on Google docs
- Actions on Google samples
Setup Instructions
Install the library with either npm install actions-on-google or yarn add actions-on-google if you use yarn.
Developer Preview
To support features under Developer Preview, the library has a special preview branch which can be installed using the @preview tag.
This is installed with either npm install actions-on-google@preview or yarn add actions-on-google@preview.
The preview tag will be kept up to date with every new version of the library.
You can use the Developer Preview version to experience exciting new features that weโre still testing to make sure we have the best developer experience, and help us providing feedback on the API design and feature set.
The APIs offered in Developer Preview have not matured to General Availability yet, which means:
- You canโt publish Actions that use features in Developer Preview.
- The APIs are potentially subject to backwards incompatible changes.
Conversational Services
Dialogflow
// Import the appropriate service and chosen wrappers
const {
dialogflow,
Image,
} = require('actions-on-google')
// Create an app instance
const app = dialogflow()
// Register handlers for Dialogflow intents
app.intent('Default Welcome Intent', conv => {
conv.ask('Hi, how is it going?')
conv.ask(`Here's a picture of a cat`)
conv.ask(new Image({
url: 'https://developers.google.com/web/fundamentals/accessibility/semantics-builtin/imgs/160204193356-01-cat-500.jpg',
alt: 'A cat',
}))
})
// Intent in Dialogflow called `Goodbye`
app.intent('Goodbye', conv => {
conv.close('See you later!')
})
app.intent('Default Fallback Intent', conv => {
conv.ask(`I didn't understand. Can you tell me something else?`)
})Actions SDK
// Import the appropriate service and chosen wrappers
const {
actionssdk,
Image,
} = require('actions-on-google')
// Create an app instance
const app = actionssdk()
// Register handlers for Actions SDK intents
app.intent('actions.intent.MAIN', conv => {
conv.ask('Hi, how is it going?')
conv.ask(`Here's a picture of a cat`)
conv.ask(new Image({
url: 'https://developers.google.com/web/fundamentals/accessibility/semantics-builtin/imgs/160204193356-01-cat-500.jpg',
alt: 'A cat',
}))
})
app.intent('actions.intent.TEXT', (conv, input) => {
if (input === 'bye' || input === 'goodbye') {
return conv.close('See you later!')
}
conv.ask(`I didn't understand. Can you tell me something else?`)
})Notes about the code snippet
conv.ask/conv.closecan be called with any of theResponsetypes.- All
Helperclasses are of theResponsetype.
Dialogflow
appis an instance of typeDialogflowApp.appaccepts options of typeDialogflowOptions.convis an instance of typeDialogflowConversation.
Actions SDK
appis an instance of typeActionsSdkApp.appaccepts options of typeActionsSdkOptions.convis an instance of typeActionsSdkConversation.
Smart Home
// Import the appropriate service
const { smarthome } = require('actions-on-google')
// Create an app instance
const app = smarthome()
// Register handlers for Smart Home intents
app.onExecute((body, headers) => {
return {
requestId: 'ff36...',
payload: {
// ...
},
}
})
app.onQuery((body, headers) => {
return {
requestId: 'ff36...',
payload: {
// ...
},
}
})
app.onSync((body, headers) => {
return {
requestId: 'ff36...',
payload: {
// ...
},
}
})Notes about the code snippet
appis an instance of typeSmartHomeApp.appaccepts options of typeSmartHomeOptions.
Frameworks
Export or run for your appropriate framework:
Firebase Functions
const functions = require('firebase-functions')
// ... app code here
exports.fulfillment = functions.https.onRequest(app)Dialogflow Inline Editor
const functions = require('firebase-functions')
// ... app code here
// name has to be `dialogflowFirebaseFulfillment`
exports.dialogflowFirebaseFulfillment = functions.https.onRequest(app)Self Hosted Express Server
const express = require('express')
const bodyParser = require('body-parser')
// ... app code here
const expressApp = express().use(bodyParser.json())
expressApp.post('/fulfillment', app)
expressApp.listen(3000)AWS Lambda API Gateway
// ... app code here
exports.fulfillment = appNext Steps
Take a look at the docs and samples linked at the top to get to know the platform and supported functionalities.
Library Development Instructions
This library uses yarn to run commands. Install yarn using instructions from https://yarnpkg.com/en/docs/install or with npm: npm i -g yarn.
Install the library dependencies with yarn. If you want to run any of the sample apps, follow the instructions in the sample README.
Functionality
Public interfaces, classes, functions, objects, and properties are labeled with the JSDoc @public tag and exported at the top level. Everything else that is not labeled @public and exported at the top level is considered internal and may be changed.
This library supports the following Services:
- Dialogflow v1 and v2
- Actions SDK v2 only
- Smart Home
Actions SDK
This library supports only Actions SDK fulfillment version 2.
To ensure that your fulfillment uses version 2, set the "fulfillmentApiVersion": 2 property in your action package.
References & Issues
- Questions? Go to StackOverflow, Assistant Developer Community on Reddit or Support.
- For bugs, please report an issue on Github.
- Actions on Google Documentation
- Actions on Google Codelabs.
- Webhook Boilerplate Template for Actions on Google.
Make Contributions
Please read and follow the steps in the CONTRIBUTING.md.
License
See LICENSE.
Terms
Your use of this sample is subject to, and by using or downloading the sample files you agree to comply with, the Google APIs Terms of Service.