Make imgur link have .png or .jpg in the end of the url with nodeJS

Question

I have a node JS application that gets images from reddit.com/r/wallpaper.

You make a request on the html page and it gets a random image and displays it on the <img>.

Problem is sometimes you get imgur urls like http://imgur.com/a/Vtav5 which cannot be displayed on the <img>, but urls like http://i.imgur.com/vjUeUVj.jpg can be displayed, on Node.js how can i get the url to become a direct image url? Heres my currently working code.

app.get('/', function (req, res) {

    r.getSubreddit(subreddit).getRandomSubmission().then(function(post){

        if(post.url.includes(".jpg") || post.url.includes(".png")){
            currentUrl = post.url;
            console.log(currentUrl);
            res.send(currentUrl);
            res.end();

        } else{
            console.log("Not a direct image URL");
            console.log(post.url);
        }

        });
    console.log("Got request");
    //res.end();


})

Answer 1

If it's not available via their API, best you can do is scrape it and hopefully the number of links you need to scrape won't be too large.

var Xray = require('x-ray');
var x = Xray();

x('http://imgur.com/a/Vtav5', '.post-images .post-image', [{
  url: 'a@href'
}])(function (err, res) {
    console.log(res);
})

Output:

[ { url: 'http://i.imgur.com/vjUeUVj.jpg' } ]