Support GitHub followers

server.js

@@ -1929,6 +1929,41 @@ cache(function(data, match, sendBadge, request) {
   });
 }));
 
+// GitHub user followers integration.
+camp.route(/^\/github\/followers\/([^\/]+)\.(svg|png|gif|jpg|json)$/,
+cache(function(data, match, sendBadge, request) {
+  var user = match[1];  // eg, qubyte
+  var format = match[2];
+  var apiUrl = 'https://api.github.com/users/' + user;
+  // Using our OAuth App secret grants us 5000 req/hour
+  // instead of the standard 60 req/hour.
+  if (serverSecrets) {
+    apiUrl += '?client_id=' + serverSecrets.gh_client_id
+      + '&client_secret=' + serverSecrets.gh_client_secret;
+  }
+  var badgeData = getBadgeData('followers', data);
+  // A special User-Agent is required:
+  // http://developer.github.com/v3/#user-agent-required
+  request(apiUrl, { headers: githubHeaders }, function(err, res, buffer) {
+    if (err != null) {
+      badgeData.text[1] = 'inaccessible';
+      sendBadge(format, badgeData);
+    }
+    try {
+      if ((+res.headers['x-ratelimit-remaining']) === 0) {
+        return;  // Hope for the best in the cache.
+      }
+      badgeData.text[1] = JSON.parse(buffer).followers;
+      badgeData.colorscheme = null;
+      badgeData.colorB = '#4183C4';
+      sendBadge(format, badgeData);
+    } catch(e) {
+      badgeData.text[1] = 'invalid';
+      sendBadge(format, badgeData);
+    }
+  });
+}));
+
 // Chef cookbook integration.
 camp.route(/^\/cookbook\/v\/(.*)\.(svg|png|gif|jpg|json)$/,
 cache(function(data, match, sendBadge, request) {

try.html

@@ -450,6 +450,10 @@ Pixel-perfect   Retina-ready   Fast   Consistent   Hackable
   <td><img src='/github/stars/badges/shields.svg' alt=''/></td>
   <td><code>https://img.shields.io/github/stars/badges/shields.svg</code></td>
   </tr>
+  <tr><th> GitHub followers: </th>
+  <td><img src='/github/followers/espadrine.svg' alt=''/></td>
+  <td><code>https://img.shields.io/github/followers/espadrine.svg</code></td>
+  </tr>
   <tr><th> Wordpress rating: </th>
   <td><img src='/wordpress/plugin/r/akismet.svg' alt=''/></td>
   <td><code>https://img.shields.io/wordpress/plugin/r/akismet.svg</code></td>