live-fns: add twitter #206

libs/index.md

@@ -255,7 +255,7 @@ Advanced usage (for badge makers):
     'lgtm': [
       ['number of alerts', '/lgtm/alerts/g/apache/cloudstack'],
       ['java code quality', '/lgtm/grade/java/g/apache/cloudstack'],
-      ['C/C++ code quality', '/lgtm/grade/cpp/g/systemd/systemd'],
+      ['C/C++ code quality', '/lgtm/grade/cpp/g/systemd/systemd']
     ],
     'uptime robot': [
       ['status', '/uptime-robot/status/m780862024-50db2c44c703e5c68d6b1ebb'],
@@ -280,7 +280,7 @@ Advanced usage (for badge makers):
       ['hits (per month)', '/jsdelivr/hits/gh/jquery/jquery'],
       ['hits (per month)', '/jsdelivr/hits/npm/lodash'],
       ['rank', '/jsdelivr/rank/npm/lodash'],
-      ['version', '/jsdelivr/v/npm/lodash'],
+      ['version', '/jsdelivr/v/npm/lodash']
     ],
     'azure pipelines': [
       ['build', '/azure-pipelines/yarnpkg/yarn/Yarn Acceptance Tests'],
@@ -291,11 +291,15 @@ Advanced usage (for badge makers):
       ['backers', '/opencollective/backers/webpack'],
       ['contributors', '/opencollective/contributors/webpack'],
       ['balance', '/opencollective/balance/webpack'],
-      ['yearly income', '/opencollective/yearly/webpack'],
+      ['yearly income', '/opencollective/yearly/webpack']
     ],
     keybase: [
       ['pgp', '/keybase/pgp/lukechilds']
     ],
+    twitter: [
+      ['follower count', '/twitter/follow/rustlang'],
+      ['follower count', '/twitter/follow/golang']
+    ]
   }
 
   window.links = {

libs/live-fns/_index.js

@@ -30,6 +30,7 @@ module.exports = {
   rubygems: require('./rubygems.js'),
   runkit: require('./runkit.js'),
   travis: require('./travis.js'),
+  twitter: require('./twitter.js'),
   'uptime-robot': require('./uptime-robot.js'),
   'vs-marketplace': require('./vs-marketplace.js'),
   xo: require('./xo')

libs/live-fns/twitter.js

@@ -0,0 +1,21 @@
+const got = require('../got.js')
+const millify = require('millify')
+
+module.exports = async (topic, user) => {
+  const endpoint = `http://cdn.syndication.twimg.com/widgets/followbutton/info.json?screen_names=${user}`
+  const [info] = await got(endpoint).then(res => res.body)
+
+  switch (topic) {
+    case 'follow':
+      return {
+        subject: `follow @${user}`,
+        status: millify(info.followers_count),
+        color: '1da1f2'
+      }
+    default:
+      return {
+        subject: `twitter`,
+        status: `unknown topic`
+      }
+  }
+}