AWS Lambda Redirect code

code.js

'use strict';

const finish = (cb, url) => {
    console.log('Sending to', url);
    cb(null, {url: url});
}

exports.handler = (event, context, callback) => {
    const defaultURL = 'http://example.com';
    
    const testPath = event.filePath;
    
    console.log('Visiting', testPath);

    if (testPath === 'somefile.jpg') {
        return finish(callback, 'https://finalexample.com/url/file.jpg');
    }
    
    if (testPath === 'someotherfile.jpg') {
        return finish(callback, 'https://finalexample.com/url/file2.jpg');
    }
    
    // There's about 30 of these...

    finish(callback, defaultURL);
};