Get github username by id
Using this link I can see that my (tonylampada) id on github is 218821 https://api.github.com/users/tonylampada
How could I do the opposite? Given the user id = 218821, what's the username?
Update
Answering nulltoken here because it's a long story and it won't fit in a comment.
FreedomSponsors is a django application that uses django-social-auth to enable login with Github (and others). (You should check it out, btw, please see the about page in the blog :-) Django-social-auth has a configuration flag that allows the application to store the github username on the database. A few days ago I deployed a new version of FS with github login enabled, but with "storeGithubUsername" set to false.
A few users registered their github accounts, and now the database has their github ids, but not their usernames.
You can se in my profile that I have github as a "connected account" but there's no link to my github page.
I need it to make the link point to https://github.com/tonylampada
I'm ready to deploy a new version that fixes this, by setting the "storeGithubUsername" (that's not what it is called, I'm just simplifying here) to true. But I'd like to patch the database with the already github-registered users. I have their github ids, but not their github usernames.
Answer
We need to do this on Gitter to deal with the situation where a user has changed their username on GitHub and we get a 404 response when querying their old username.
Here's an undocumented endpoint, so use as your own peril, but it does work for now.
Use the endpoint: https://api.github.com/user/:id, where :id is the ID of the user.
Similar endpoints exist for repos and orgs, at
https://api.github.com/repositories/:id and https://api.github.com/organizations/:id respectively.
Note that the new repository redirects preview API only supports repositories, not renamed users or organizations. In fact, the HTTP 301 redirect actually points to https://api.github.com/repositories/:id, so there's a good chance that these "ID" endpoints may in fact become official soon.