# Ok Google, Charge $2 for Coffee

DevFeed: [Ok Google, Charge $2 for Coffee](<https://devfeed.tech/articles/ok-google-charge-2-for-coffee-15785.md>)

Original publisher: [Read original article](<https://developer.squareup.com/blog/ok-google-charge-2-for-coffee>)

Author: P-Y Ricau

Published: 2017-03-10T21:54:16Z

Content type: article

Language: en

Sources: [Square Corner Blog RSS Feed](<https://devfeed.tech/sources/square-corner-blog-rss-feed.md>)

Topics: [API](<https://devfeed.tech/topics/api.md>), [Android](<https://devfeed.tech/topics/android.md>), [Firebase](<https://devfeed.tech/topics/firebase.md>), [Messaging](<https://devfeed.tech/topics/messaging.md>), [App](<https://devfeed.tech/topics/app.md>), [Google](<https://devfeed.tech/topics/google.md>), [Bluetooth](<https://devfeed.tech/topics/bluetooth.md>), [Cloud](<https://devfeed.tech/topics/cloud.md>)

Tags: [android](<https://devfeed.tech/tags/android.md>), [api](<https://devfeed.tech/tags/api.md>), [apis](<https://devfeed.tech/tags/apis.md>), [app](<https://devfeed.tech/tags/app.md>), [apple](<https://devfeed.tech/tags/apple.md>), [apps](<https://devfeed.tech/tags/apps.md>), [bluetooth](<https://devfeed.tech/tags/bluetooth.md>), [cloud](<https://devfeed.tech/tags/cloud.md>), [cloud-messaging](<https://devfeed.tech/tags/cloud-messaging.md>), [code](<https://devfeed.tech/tags/code.md>), [google](<https://devfeed.tech/tags/google.md>), [messaging](<https://devfeed.tech/tags/messaging.md>)

## AI overview

The article describes building an Android app that lets a merchant use Google Home and voice-triggered workflows to activate the Square Point-of-Sale app and process an Apple Pay transaction through a Square Contactless Reader. The prototype uses public APIs, Firebase Cloud Messaging, Bluetooth, and Google Assistant or IFTTT.

## Source excerpt

When I received my Google Home, I immediately felt the urge to build something with it. After a good night's sleep, I had an idea: Baristas...