From ef1b95d385d3e62a54ac454f855b8df34bcd42ce Mon Sep 17 00:00:00 2001
From: Rolando Santamaria Maso <kyberneees@gmail.com>
Date: Sat, 30 Jan 2021 18:35:00 +0100
Subject: [PATCH 1/4] adding url rewrite demo

---
 demos/url-rewrite.js | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)
 create mode 100644 demos/url-rewrite.js

diff --git a/demos/url-rewrite.js b/demos/url-rewrite.js
new file mode 100644
index 0000000..6279af9
--- /dev/null
+++ b/demos/url-rewrite.js
@@ -0,0 +1,20 @@
+'use strict'
+
+const gateway = require('../index')
+const PORT = process.env.PORT || 8080
+
+gateway({
+  routes: [{
+    pathRegex: '',
+    prefix: '/customers/:customerId',
+    target: 'http://localhost:3000',
+    urlRewrite: ({ params: { customerId } }) => `/users/${customerId}`
+  }]
+}).start(PORT).then(server => {
+  console.log(`API Gateway listening on ${PORT} port!`)
+})
+
+const service = require('restana')({})
+service
+  .get('/users/:id', (req, res) => res.send('Hello ' + req.params.id))
+  .start(3000).then(() => console.log('Service listening on 3000 port!'))

From acc58551d5c22edab2ee4b236770eb7128dbc05e Mon Sep 17 00:00:00 2001
From: Rolando Santamaria Maso <kyberneees@gmail.com>
Date: Sat, 30 Jan 2021 18:35:08 +0100
Subject: [PATCH 2/4] supporting url rewrite

---
 index.js | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/index.js b/index.js
index ef6f665..f0e243d 100644
--- a/index.js
+++ b/index.js
@@ -91,7 +91,9 @@ const gateway = (opts) => {
 
 const handler = (route, proxy, proxyHandler) => async (req, res, next) => {
   try {
-    req.url = req.url.replace(route.prefix, route.prefixRewrite)
+    req.url = route.urlRewrite
+      ? route.urlRewrite(req)
+      : req.url.replace(route.prefix, route.prefixRewrite)
     const shouldAbortProxy = await route.hooks.onRequest(req, res)
     if (!shouldAbortProxy) {
       const proxyOpts = Object.assign({

From f5cebf8f4a29b3e45d37e74574bd3faf7d189a9f Mon Sep 17 00:00:00 2001
From: Rolando Santamaria Maso <kyberneees@gmail.com>
Date: Tue, 2 Feb 2021 19:12:34 +0100
Subject: [PATCH 3/4] adding test cases

---
 test/config.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/test/config.js b/test/config.js
index 14caaa2..41ec4ad 100644
--- a/test/config.js
+++ b/test/config.js
@@ -69,7 +69,7 @@ module.exports = async () => {
     {
       pathRegex: '',
       prefix: '/endpoint-proxy-methods',
-      prefixRewrite: '/endpoint-proxy-methods',
+      urlRewrite: (req) => '/endpoint-proxy-methods',
       target: 'http://localhost:3000',
       methods: ['GET', 'POST']
     },

From f641208f8ba3f06d875744b9cd7a28f6d6c983ea Mon Sep 17 00:00:00 2001
From: Rolando Santamaria Maso <kyberneees@gmail.com>
Date: Tue, 2 Feb 2021 19:16:50 +0100
Subject: [PATCH 4/4] adding urlRewrite hook documentation

---
 README.md | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/README.md b/README.md
index d62856c..38c7aed 100644
--- a/README.md
+++ b/README.md
@@ -141,6 +141,8 @@ module.exports.handler = serverless(service)
     },
     // Optional "prefix rewrite" before request is forwarded. Default value: ''
     prefixRewrite: '',
+    // Optional "url rewrite" hook. If defined, the prefixRewrite setting is ignored. 
+    urlRewrite: (req) => req.url,
     // Remote HTTP server URL to forward the request. 
     // If proxyType = 'lambda', the value is the name of the Lambda function, version, or alias.
     target: 'http://localhost:3000',