Google action fetching data from an RSS feed

In the previous article, we looked at fetching data from an API for our Google action.

However, in my case, I don't have an API at my disposal. I have an RSS feed, so let's see how we can use that to fetch the latest article, which we can return.

If you'd like to follow along, you can use this article as your starting point.

Fetching RSS data and prompt in Google action

Since our action is based on a cloud function, we can add some dynamic data fetching.

Open up your webhook package.json, and let's first add the package we need to parse XML.

{
  "dependencies": {
      // The other deps
    "xml-js": "^1.6.11"
  }
}

Now you can head over to the index.js file and start importing the packages we need. This includes the node-fetch API.

const fetch = require('node-fetch');
const convert = require('xml-js');

Then we'll need to convert our handle function to an async function.

// Previous
app.handle('greeting', (conv) => {});

// New
app.handle('greeting', async (conv) => {});

And then, we can start by fetching our RSS feed. This can be parsed as plain text.

const response = await fetch('https://daily-dev-tips.com/sitemap.xml');
const text = await response.text();

From here, we can use the xml-js package to convert it into a readable stream of JSON.

const jsonData = JSON.parse(convert.xml2json(text, { compact: true }));

Note: I'm using compact mode, which removes a lot of unneeded lines

Then we can add a new card with the first item's data.

conv.add(
  new Card({
    title: jsonData.feed.entry[0].title._cdata,
    text: jsonData.feed.entry[0].content._cdata,
    image: new Image({
      url: 'https://daily-dev-tips.com/images/logo.png',
      alt: 'Daily Dev Tips logo',
    }),
  })
);

Save and deploy your function; wait for the deployment to finish and test it out.

Google actions get data from RSS

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Google action fetching data from an RSS feed

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Fetching RSS data and prompt in Google action

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