Some more examples

Before we finish off the chapter, let's look at some more example code running in Fission, starting with a weather checker.

Weather

In the /Chapter08/weather/ folder of the repository, you will find weather.js. This is a simple Node.js function that queries the Yahoo weather API to return the current weather for a given location:

'use strict';

const rp = require('request-promise-native');

module.exports = async function (context) {
    const stringBody = JSON.stringify(context.request.body);
    const body = JSON.parse(stringBody);
    const location = body.location;

    if (!location) {
        return {
            status: 400,
            body: {
                text: 'You must provide a location.'
            }
        };
    }

    try {
        const response = await rp(`https://query.yahooapis.com/v1/public/yql?q=select item.condition from weather.forecast where woeid in (select woeid from geo.places(1) where text="${location}") and u="c"&format=json`);
    ...