functions-samples

# Cloud Functions for Firebase Sample Library

This repository contains a collection of samples showcasing some typical uses of [Cloud Functions for Firebase](https://firebase.google.com/features/functions).

Samples are available for **Node** (1st and 2nd gen) and **Python** (2nd gen).

### What's Cloud Functions for Firebase?

Cloud Functions is a hosted, private, and scalable environment where you can run JavaScript or Python code. [Cloud Functions for Firebase](https://firebase.google.com/features/functions) integrates the Firebase platform by letting you write code that responds to events and invokes functionality exposed by other Firebase features.

## Prerequisites

> All samples require the Blaze pay-as-you-go billing plan to deploy. Learn more about [pricing](https://firebase.google.com/pricing#cloud-functions).

To learn how to get started with Cloud Functions for Firebase by having a look at the [Getting Started Guide](https://firebase.google.com/docs/functions/get-started), trying the [quickstart samples](/Node/quickstarts) and looking at [the documentation](https://firebase.google.com/docs/functions).

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## Quickstarts

Minimal samples for each Cloud Functions trigger type.

### Quickstart: Uppercaser for Firestore

- [Node 2nd gen](/Node/quickstarts/uppercase-firestore/)
- [Python](/Python/quickstarts/uppercase-firestore/)
- [Node 1st gen](/Node-1st-gen/quickstarts/uppercase-firestore/)

This quickstart sample demonstrates using **Cloud Functions** triggered by **Firestore events**. The function transforms message text written to Firestore to uppercase.

### Quickstart: Add numbers and sanitize text with callable functions

- [Dart](/Dart/quickstarts/callable-functions/)
- [Node 2nd gen](/Node/quickstarts/callable-functions/)
- [Python](/Python/quickstarts/callable-functions)
- [Node 1st gen](/Node-1st-gen/quickstarts/callable-functions/)

### Quickstart: Stream responses with callable functions

- [Dart](/Dart/quickstarts/callable-functions-streaming/)
- [Node 2nd gen](/Node/quickstarts/callable-functions-streaming/)

### HTTPS trigger quickstart: Time Server

- [Dart](/Dart/quickstarts/https-time-server/)
- [Node 2nd gen](/Node/quickstarts/https-time-server/)
- [Python](/Python/quickstarts/https-time-server/)
- [Node 1st gen](/Node-1st-gen/quickstarts/https-time-server/)

This quickstart sample demonstrates using **Cloud Functions** triggered by **HTTPS requests**. The function returns the current server time and allows for date time formatting.

### Quickstart: Uppercaser for Realtime Database

- [Node 2nd gen](/Node/quickstarts/uppercase-rtdb/)
- [Python](/Python/quickstarts/uppercase-rtdb/)
- [Node 1st gen](/Node-1st-gen/quickstarts/uppercase-rtdb/)

This quickstart sample demonstrates using **Cloud Functions** triggered by **Realtime Database events**. The function transforms message text written to Realtime Database to uppercase.

### Hosting triggered HTTPS function quickstart: Big Ben

- [Node 1st g