[github] How to leave a message for a github.com user

Need help on GitHub usage. I wonder if there is a way to communicate with a github.com user i.e. write the user a message when only username/id is given on their GitHub page? Does GitHub have this social feature?

Does GitHub have this social feature?

If the commit email is kept private, GitHub now (July 2020) proposes:

Users and organizations can now add Twitter usernames to their GitHub profiles

You can now add your Twitter username to your GitHub profile directly from your profile page, via profile settings, and also the REST API.

We've also added the latest changes:

• Organization admins can now add Twitter usernames to their profile via organization profile settings and the REST API.
• All users are now able to see Twitter usernames on user and organization profiles, as well as via the REST and GraphQL APIs.
• When sponsorable maintainers and organizations add Twitter usernames to their profiles, we'll encourage new sponsors to include that Twitter username when they share their sponsorships on Twitter.

That could be a workaround to leave a message to a GitHub user.

Github said on April 3rd 2012 :

Today we're removing two features. They've been gathering dust for a while and it's time to throw them out : Fork Queue & Private Messaging

Source

Here is another way:

• Browse someone's commit history (Click commits which is next to branch to see the whole commit history)

• Click the commit that with the person's username because there might be so many of them

• Then you should see the web address has a hash concatenated to the URL. Add .patch to this commit URL

• You will probably see the person's email address there

Example: https://github.com/[username]/[reponame]/commit/[hash].patch

Source: Chris Herron @ Sourcecon

This method was working as of December 2020

1. Copy and paste the next line into your browser (feel free to bookmark it): https://api.github.com/users/xxxxxxx/events/public
2. Find the GitHub username for which you want the email. Replace the xxxxxxx in the URL with the person's GitHub username. Hit Enter.
3. Press Ctrl+F and search for “email”.

As suggested by qbolec, the above steps can be done by using this snippet:

<input id=username type="text" placeholder="github username or repo link">
<button onclick="fetch(`https://api.github.com/users/${username.value.replace(/^.*com[/]([^/]*).*$/,'$1')}/events/public`).then(e=> e.json()).then(e => [...new Set([].concat.apply([],e.filter(x => x.type==='PushEvent').map(x => x.payload.commits.map(c => c.author.email)))).values()]).then(x => results.innerText = x)">GO</button>
<div id=results></div>

Source: Matthew Ferree @ Sourcecon

For lazy people, like me, a snippet based on Nikhil's solution

<input id=username type="text" placeholder="github username or repo link">_x000D_
<button onclick="fetch(`https://api.github.com/users/${username.value.replace(/^.*com[/]([^/]*).*$/,'$1')}/events/public`).then(e=> e.json()).then(e => [...new Set([].concat.apply([],e.filter(x => x.type==='PushEvent').map(x => x.payload.commits.map(c => c.author.email)))).values()]).then(x => results.innerText = x)">GO</button>_x000D_
<div id=results></div>

Besides the removal of the github messaging service, usage was often not necessary due to many githubbers communicating with- and advocating twitter.

The advantage is that there is:

• full transparency
• better coverage
• better search features for tweets
• better archiving, for instance by the US Library of Congress

It is probably no coincidence that stackoverflow doesn't allow private messaging either, to ensure full transparency. The entire messaging issue is thoroughly discussed on meta-stackoverflow here.

Although GitHub removed the private messaging feature, there's still an alternative.

GitHub host git repositories. If the user you're willing to communicate with has ever committed some code, there are good chances you may reach your goal. Indeed, within each commit is stored some information about the author of the change or the one who accepted it.

Provided you're really dying to exchange with user user_test

• Display the public activity page of the user: https://github.com/user_test?tab=activity
• Search for an event stating "user_test pushed to [branch] at [repository]". There are usually good chances, they may have pushed one of his own commits. Ensure this is the case by clicking on the "View comparison..." link and make sure the user is listed as one of the committers.
• Clone on your local machine the repository they pushed to: git clone https://github.com/..../repository.git
• Checkout the branch they pushed to: git checkout [branch]
• Display the latest commits: git log -50

As a committer/author, an email should be displayed along with the commit data.

Note: Every warning related to unsolicited email should apply there. Do not spam.

Simply cereate a dummy repo, open a new issue and use @xxxxx to notify the affected user.

If user has notification via e-mail enabled he will get an e-mail, if not he will notice on next login.

No need to search for e-mail adress in commits or activity stream and privacy is respected.