This repository provides a barebones web portal to provide an Amazon Alexa skill with access to your Twitter account. Some assembly necessary.
I run this on heroku, though you could theoretically run it anywhere. Spin up a free dyno and set config vars name CONSUMER_KEY and CONSUMER_SECRET with your respective keys for your twitter app. While you're there, don't forget to set the callback url to [your url]/callback in your app settings on Twitter.
Then, modify the following code in the script tag in the callback redirect page located in html/callback/index.html to use the RedirectURL from your skill in Amazon's developer portal.
var separator = '%20';
var redirectURL = 'https://pitangui.amazon.com/spa/skill/account-linking-status.html?vendorId=M30ZYAJQY0QZYX';
$.get('https://tweeter-login.herokuapp.com/access-token' + location.search).done(function(data) {
window.location.href = redirectURL + '#state=' + data.state + '&access_token=' + data.token + separator + data.secret + '&token_type=Bearer';
})The api key and secret will be passed back to amazon as a single string separated by a percent encoded space(%20). You can modify this behavior by changing the separator value in the above code.
Your Skill configuration in the Amazon developer portal should look something like this, substituting your URLs for mine:
