# Challenge

## Cloud Functions

## Find the repo

We'll be working on a branch of our [firelist-react](https://github.com/how-to-firebase/firelist-react) repo named [challenge-functions](https://github.com/how-to-firebase/firelist-react/tree/challenge-functions).

## Localhost installation

Pull [the repo](https://github.com/how-to-firebase/firelist-react) directly from GitHub...

```
git clone https://github.com/how-to-firebase/firelist-react.git
cd firelist-react
git checkout challenge-functions
```

## Edit environment files

Update the following files with your own project details:

* `/.firebaserc`
* `/public/environments/environment.dev.js`
* `/public/environments/environment.js`
* `/functions/environments/environment.dev.js`
* `/functions/environments/environment.js`

## Run the tests

Once you're on the branch, make sure to run `yarn` or `npm install` to get your Node.js dependencies.

Then `cd` into your `functions` directory and run `yarn` or `npm install` again.

Make sure that you've installed [nvm for Linux/macOS](https://github.com/creationix/nvm), [nvm for Windows](https://github.com/coreybutler/nvm-windows) or some other tool to switch between Node.js versions.

Use `nvm install 6.14.2` then `nvm use 6.14.2` to switch to Node version 6.14.2.

The Node version is important to make sure that your tests run in an identical environment to that of the Cloud Functions runtime.

Then run `yarn test` or `npm test` to run your tests.

```
yarn
cd functions
nvm install 6.14.2
nvm use 6.14.2
node --version //should read out 6.14.2
yarn test
```

## Complete the challenge

Search the codebase for `Challenge Functions` to find all of the challenges.

Work through the challenges in order from 01 to 06


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://www.fullstackfirebase.com/cloud-functions-for-firebase/challenge.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.