andres934 / cloudfunctionsrelay

Cloud Functions Assistant

NodeJS project to handle Google Assistant texts commands over Firebase Cloud Functions plus some Google tools

Requirements

• Firebase project
• Firebase admin service key(From GoogleCloudConsole)
• Web OAuth2 key(FromCloudConsole)

Before you begin

• Download the Web OAuth2 key, rename it as secrets.json and save it in functions/config/secrets
• Download the Firebase admin service key, rename it as admin_fb_key.json and save it in functions
• Run npm install on root and functions/ directory

IMPORTANT

For Google Assistant to work you need the Refresh Token from google, this token you can only request the FIRST time you are giving access permission to a certain app, after that, if you try to request the Refresh Token you will get a invalid_grant error, so if you are testing with a application with the permissions already given, you have to go to Google Account Privacy and delete permission access over "Third party apps" so the app can request the access again

Request and Response

//Request Object Structure
{
    "idFB": String,         //idFB of the request user
    "userAuthCode": String, //User Google Auth Code
    "speakedText": String   //Text command your want to send to Google Assistant
}

//Response Object Structure
{
    "response": String,      //Text response from google assistant/token requested
    "audio": String,         //Audio Buffer response from google assistant
    "error": Array<String>,  //The catched errors during the execution
    "success": Boolean       //If response is success
}

Library

Google Assistant is handled by the library: https://github.com/Dabolus/nodejs-assistant