67 lines
2.2 KiB
JavaScript
67 lines
2.2 KiB
JavaScript
// Required Modules
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const fetch = require('node-fetch');
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// Valid sortBy names
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const sortable = [
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'new',
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'hot',
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'top'
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]
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// Main function
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function randomBunny(subreddit, sortBy, cb) {
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// If the sortable list doesn't include sortBy, default to 'hot'
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if (!sortable.includes(sortBy)) sortBy = 'hot';
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// Fetch the json from reddit
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// For example, if you're getting a random image from r/rabbits, sorted by new:
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// https://www.reddit.com/r/rabbits/new.json
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fetch(`https://www.reddit.com/r/${subreddit}/${sortBy}.json`).then(res => {
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res.json().then(res => {
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// Get the part of the json string which the data comes from
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const data = res.data.children;
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const size = data.length;
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// Found is used for the while loop in order to break out of the loop.
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// We need to loop as the json string will contain invalid data for what we need
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// Specifically videos.
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let found = false;
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// Loop until a valid image post is found
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while (!found) {
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// Generate random number
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const random = getRandom(0, size - 1);
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// Get variables from json to pass back
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const randomSelect = data[random].data;
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// The json string to send back
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const json = {
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archived: randomSelect['archived'],
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downs: randomSelect['downs'],
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hidden: randomSelect['hidden'],
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permalink: randomSelect['permalink'],
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subreddit: randomSelect['subreddit'],
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subredditSubscribers: randomSelect['subreddit_subscribers'],
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title: randomSelect['title'],
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ups: randomSelect['ups'],
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url: randomSelect['url']
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};
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// If the post is a .jpg, send back the data and stop looping
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if (json.url.includes('.jpg')) {
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found = true;
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cb(json);
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}
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}
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});
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});
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}
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// Generate a random number
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function getRandom(min, max) {
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return Math.floor((Math.random() * max) + min);
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}
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// Export Functions
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module.exports = randomBunny; |