From d4890b870453731ba444fd5c81d9ecc2ecc41d2f Mon Sep 17 00:00:00 2001
From: joknoxy <76135626+joknoxy@users.noreply.github.com>
Date: Tue, 30 Nov 2021 14:56:04 +1100
Subject: [PATCH 1/3] Initial commit

---
 redirect_maintain_uri_querystring/index.js | 34 ++++++++++++++++++++++
 1 file changed, 34 insertions(+)
 create mode 100644 redirect_maintain_uri_querystring/index.js

diff --git a/redirect_maintain_uri_querystring/index.js b/redirect_maintain_uri_querystring/index.js
new file mode 100644
index 0000000..eca1d9a
--- /dev/null
+++ b/redirect_maintain_uri_querystring/index.js
@@ -0,0 +1,34 @@
+function objectToQueryString(obj) {
+    var str = [];
+    for (var param in obj)
+        if (obj[param].multiValue)
+            str.push(param + "=" + obj[param].multiValue.map((item) => item.value).join(','));
+        else if (obj[param].value == '')
+            str.push(param);
+        else
+            str.push(param + "=" + obj[param].value);
+
+    return str.join("&");
+}
+
+function handler(event) {
+    var request = event.request;
+    var headers = request.headers;
+    var uri = request.uri;
+    var loc = "";
+    var newdomain = "newdomain.com";
+
+    if (Object.keys(request.querystring).length) 
+        loc = `https://${newdomain}${uri}?${objectToQueryString(request.querystring)}`
+    else 
+        loc = `https://${newdomain}${uri}`
+
+    var response = {
+        statusCode: 302,
+        statusDescription: 'Found',
+        headers: {
+            'location': { value: `${loc}` }      
+        }
+    };
+    return response;
+}

From 007ae055065d6a0ff8588fec7bf2d200905d60b7 Mon Sep 17 00:00:00 2001
From: joknoxy <76135626+joknoxy@users.noreply.github.com>
Date: Tue, 30 Nov 2021 15:21:25 +1100
Subject: [PATCH 2/3] Initial commit

---
 redirect_maintain_uri_querystring/readme.md | 28 +++++++++++++++++++++
 1 file changed, 28 insertions(+)
 create mode 100644 redirect_maintain_uri_querystring/readme.md

diff --git a/redirect_maintain_uri_querystring/readme.md b/redirect_maintain_uri_querystring/readme.md
new file mode 100644
index 0000000..6ed6383
--- /dev/null
+++ b/redirect_maintain_uri_querystring/readme.md
@@ -0,0 +1,28 @@
+## Redirect (temporary) to new domain
+
+**CloudFront Functions event type: viewer response**
+
+This function will perform a redirect (302 - temporary) to a new domain while maintaining the uri and query string values in the destination FQDN.
+
+If you want a permanent redirect,  change statusCode from 302 to 301 in function code.
+
+**Important: Set the `newdomain` variable to an appropriate value for your specific needs.**
+
+**Testing the function**
+
+To validate that the function is working as expected, you can use the provided test object from https://docs.aws.amazon.com/AmazonCloudFront/latest/DeveloperGuide/functions-event-structure.html#functions-event-structure-example and test in the console using the instructions https://docs.aws.amazon.com/AmazonCloudFront/latest/DeveloperGuide/test-function.html#test-function-console
+
+If the function has been set up correctly, you should see a result similar to the following with the value of 'newdomain',  and the uri and querystring values from the test object being added in the 'location' response header in `FunctionOutput` JSON object:
+```
+{
+  "response": {
+    "headers": {
+      "location": {
+        "value": "https://newdomain.com/media/index.mpd?ID=42&Exp=1619740800&TTL=1440&querymv=val1,val2,val3"
+      }
+    },
+    "statusDescription": "Found",
+    "cookies": {},
+    "statusCode": 302
+  }
+  ...

From 6e46e8cb658b669ea92da77536a1a424363549a9 Mon Sep 17 00:00:00 2001
From: joknoxy <76135626+joknoxy@users.noreply.github.com>
Date: Tue, 30 Nov 2021 15:23:19 +1100
Subject: [PATCH 3/3] Update readme.md

---
 redirect_maintain_uri_querystring/readme.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/redirect_maintain_uri_querystring/readme.md b/redirect_maintain_uri_querystring/readme.md
index 6ed6383..51bbc68 100644
--- a/redirect_maintain_uri_querystring/readme.md
+++ b/redirect_maintain_uri_querystring/readme.md
@@ -10,7 +10,7 @@ If you want a permanent redirect,  change statusCode from 302 to 301 in function
 
 **Testing the function**
 
-To validate that the function is working as expected, you can use the provided test object from https://docs.aws.amazon.com/AmazonCloudFront/latest/DeveloperGuide/functions-event-structure.html#functions-event-structure-example and test in the console using the instructions https://docs.aws.amazon.com/AmazonCloudFront/latest/DeveloperGuide/test-function.html#test-function-console
+To validate that the function is working as expected, you can use the provided test object from https://docs.aws.amazon.com/AmazonCloudFront/latest/DeveloperGuide/functions-event-structure.html#functions-event-structure-example and test in the console using the instructions https://docs.aws.amazon.com/AmazonCloudFront/latest/DeveloperGuide/test-function.html#test-function-console.
 
 If the function has been set up correctly, you should see a result similar to the following with the value of 'newdomain',  and the uri and querystring values from the test object being added in the 'location' response header in `FunctionOutput` JSON object:
 ```