Clever average students per section

index.js

// rl-stdin is a node module I wrote to the stdin data and resolve the result in a promise
// `sudo npm install -g rl-stdin`
require('rl-stdin') // get the stdin data from the curl
.then(JSON.parse) // convert JSON to javascript object
.then((data) => data.data) // data is stored at the data key
.then((data) => data.map((section) => section.data.students.length)) // map the section to the number of students enrolled
.then((data) => data.reduce((hold, current) => hold + current)/data.length) // sum the total number of students enrolled divided by the total number of sections to get the average
.then((solution) => console.log('Average students per section is: ' + solution)); // log the output

script

#!/bin/bash

# Fetch the sections data with curl and the DEMO_TOKEN and pipe the reslut to the index.js
curl -H 'Authorization: Bearer DEMO_TOKEN' -X GET https://api.clever.com/v1.1/sections | node index.js