Migrate nuget badge to v2

endpoints/nuget.ts

@@ -0,0 +1,55 @@
+import got from '../libs/got'
+import { version, versionColor } from '../libs/utils'
+import {
+  badgenServe,
+  BadgenServeMeta as Meta,
+  BadgenServeHandlers as Handlers,
+  BadgenServeHandlerArgs as Args
+} from '../libs/badgen-serve'
+
+export const meta: Meta = {
+  title: 'Nuget',
+  examples: {
+    '/nuget/v/newtonsoft.json': 'version (stable channel)',
+    '/nuget/v/newtonsoft.json/pre': 'version (pre channel)',
+    '/nuget/v/newtonsoft.json/latest': 'version (latest channel)',
+  }
+}
+
+export const handlers: Handlers = {
+  '/nuget/v/:project/:channel?': handler
+}
+
+export default badgenServe(handlers)
+
+const pre = versions => versions.filter(v => v.includes('-'))
+const stable = versions => versions.filter(v => !v.includes('-'))
+const latest = versions => versions.length > 0 && versions.slice(-1)[0]
+
+async function handler ({ project, channel }: Args) {
+  const endpoint = `https://api.nuget.org/v3-flatcontainer/${project}/index.json`
+  const { versions } = await got(endpoint).then(res => res.body)
+
+  let ver = ''
+
+  switch (channel) {
+    case 'latest':
+      ver = latest(versions)
+      break
+    case 'pre':
+      ver = latest(pre(versions))
+      break
+    default:
+      // get stable version
+      ver = latest(stable(versions))
+  }
+
+  // in case version is still empty, try to get the latest
+  ver = ver || latest(versions) || 'unknown'
+
+  return {
+    subject: 'nuget',
+    status: version(ver),
+    color: versionColor(ver)
+  }
+}

libs/examples.ts

@@ -18,6 +18,7 @@ const liveBadgeExampleList = [
   'chrome-web-store',
   'amo',
   'pypi',
+  'nuget',
   'apm',
   // CI
   'appveyor',