> For the complete documentation index, see [llms.txt](https://cll-devrel.gitbook.io/bootcamp-2024/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://cll-devrel.gitbook.io/bootcamp-2024/9.-off-chain-data-with-chainlink-functions/city-weather-and-examples.md).

# City Weather and Examples

### Chainlink Functions Playground

First, go to [Chainlink Functions Playground - City Weather](https://functions.chain.link/playground/13f3c115-e8b2-4eca-9c59-275f03e3b310) and the source code will be loaded into the playground. Alternatively, you can copy and paste the following code into a blank playground:

```javascript
const city = args[0];
const apiResponse = await Functions.makeHttpRequest({
 url: `https://wttr.in/${city}?format=3&m`,
 responseType: 'text'
});
if (apiResponse.error) {
 throw Error('Request failed');
}
const { data } = apiResponse;
return Functions.encodeString(data);

```

Copy the HTTP request [https://wttr.in/${city}?format=3\&m](https://wttr.in/$%7Bcity%7D?format=3\&m) and replace `city` with Sao-Paulo in a browser to see the expected result:

<div align="left"><figure><img src="/files/DFzCVZD8J2aifq34TZG2" alt=""><figcaption><p>The expected output</p></figcaption></figure></div>

Back in the playground, 1. make sure the “Argument” is `Sao-Paulo` then 2. click the “Run code” blue button at the bottom left and 3. the “Output” will be displayed:

<figure><img src="/files/RbrmyTLKQSZ78ePTA04s" alt=""><figcaption><p>You get the expected weather back!</p></figcaption></figure>

{% hint style="info" %}
Try your city or your next vacation spot!
{% endhint %}

Navigate back to your subscription on [Chainlink Functions](https://functions.chain.link/) and click the "Add consumer" button on the far right:

{% hint style="info" %}
You can have multiple consumer contracts in a single Chainlink Functions Subscription (up to 100)

[Chainlink Functions Service Limits](https://docs.chain.link/chainlink-functions/resources/service-limits)
{% endhint %}

<figure><img src="/files/5CXy6KrdxN7x05sCtdj0" alt=""><figcaption><p>Time to add a consumer</p></figcaption></figure>

Now 1. paste in your `WeatherFunctions.sol` deployed address and then 2. click the “Add consumer” blue button:

<figure><img src="/files/awvRkLJv4KKbQ1tuHo2g" alt=""><figcaption><p>Paste in your consumer address and add the consumer</p></figcaption></figure>

MetaMask will pop-up for you to confirm the transaction:

<figure><img src="/files/u0pKrodAuJCGRmevuyql" alt=""><figcaption><p>Confirm the transaction</p></figcaption></figure>

Once the transaction is confirmed, refresh the page and you will now see your new consumer:

<figure><img src="/files/Q6AKuynBsZsxrd5RxJ7Z" alt=""><figcaption><p>Successfully added another consumer to your subscription</p></figcaption></figure>