Merge `schemes` and `handler` to `handlers`

endpoints/badge.js

@@ -10,11 +10,6 @@ const examples = [
   '/badge/platform/ios,macos,tvos?list=1'
 ]
 
-const schemes = [
-  '/badge/:label/:status',
-  '/badge/:label/:status/:color'
-]
-
 const handler = async (args) => {
   const { label, status, color } = args
   return {
@@ -24,4 +19,9 @@ const handler = async (args) => {
   }
 }
 
-module.exports = badgenServe(schemes, handler, { help, examples })
+const handlers = {
+  '/badge/:label/:status': handler,
+  '/badge/:label/:status/:color': handler
+}
+
+module.exports = badgenServe(handlers, { examples })

libs/badgen-serve.js

@@ -2,26 +2,35 @@ const url = require('url')
 const PathParser = require('path-parser').default
 
 const serve404 = require('./serve-404.js')
+const serveHelp = require('./serve-help.js')
 const serveBadge = require('./serve-badge.js')
 
-module.exports = function createHandler (schemes, handler, { help = '', examples = [] }) {
-  const matchers = schemes.map(scheme => new PathParser(scheme))
-
+module.exports = function createHandler (handlers, { help = '', examples = [] }) {
   return async function httpHandler (req, res) {
     const { pathname, query } = url.parse(req.url, true)
 
+    // serve favicon
     if (pathname === '/favicon.ico') {
       return serve404(req, res)
     }
 
+    // serve help message
+    if (pathname.startsWith('/help')) {
+      return serveHelp(req, res, help, examples)
+    }
+
+    // Lookup handler
     let matchedArgs
-    matchers.find(m => (matchedArgs = m.test(pathname)))
+    const matchedScheme = Object.keys(handlers).find(scheme => {
+      matchedArgs = new PathParser(scheme).test(pathname)
+      return matchedArgs !== null
+    })
 
-    if (matchedArgs) {
-      const params = await handler(matchedArgs)
+    if (matchedScheme) {
+      const params = await handlers[matchedScheme](matchedArgs)
       return serveBadge(req, res, { params, query })
+    } else {
+      return serve404(req, res)
     }
-
-    return serve404(req, res)
   }
 }

libs/serve-help.js

@@ -0,0 +1,3 @@
+module.exports = async function (req, res, help, examples) {
+  res.end(help)
+}