fix(query-redis-labs): support custom redis port and url

node/query-redis-labs/README.md

@@ -33,18 +33,37 @@ Sample `200` Response:
 
 ### REDIS_HOST
 
-The endpoint to connect to your Redis database.
+The endpoint or hostname to connect to your Redis database. Required only when `REDIS_URL` is absent.
 
-| Question     | Answer                         |
-| ------------ | ------------------------------ |
-| Required     | Yes                            |
+| Question     | Answer                                |
+| ------------ | ------------------------------------- |
+| Required     | Yes (only when `REDIS_URL` is absent) |
 | Sample Value | `redis-13258.c35.eu-central-1-1.ec2.redns.redis-cloud.com` |
 
+### REDIS_PORT
+
+The port to connect to your Redis database.
+
+| Question      | Answer  |
+| ------------- | ------- |
+| Required      | No      |
+| Default Value | `6379`  |
+| Sample Value  | `13258` |
+
 ### REDIS_PASSWORD
 
-Authentication password to access your Redis database.
+Authentication password to access your Redis database. Required only when `REDIS_URL` is absent.
+
+| Question     | Answer                                |
+| ------------ | ------------------------------------- |
+| Required     | Yes (only when `REDIS_URL` is absent) |
+| Sample Value | `efNNehiACfcZiwsTAjcK6xiwPyu6Dpdq`    |
+
+### REDIS_URL
+
+A full connection URL to connect to your Redis database (optional alternative to host/port/password).
 
-| Question     | Answer                         |
-| ------------ | ------------------------------ |
-| Required     | Yes                            |
-| Sample Value | `efNNehiACfcZiwsTAjcK6xiwPyu6Dpdq` |
+| Question     | Answer                                                                                                              |
+| ------------ | ------------------------------------------------------------------------------------------------------------------- |
+| Required     | No                                                                                                                  |
+| Sample Value | `redis://default:efNNehiACfcZiwsTAjcK6xiwPyu6Dpdq@redis-13258.c35.eu-central-1-1.ec2.redns.redis-cloud.com:13258` |

node/query-redis-labs/src/main.js

@@ -7,7 +7,9 @@ import { getClient, getWarehouse, insertTestData } from "./redis.js";
 let client;
 
 export default async ({ req, res, log, error }) => {
-    throwIfMissing(process.env, ['REDIS_HOST', 'REDIS_PASSWORD']);
+    if (!process.env.REDIS_URL) {
+        throwIfMissing(process.env, ['REDIS_HOST', 'REDIS_PASSWORD']);
+    }
 
     if(req.method !== 'GET') {
         return res.text('Not found.', 404);

node/query-redis-labs/src/redis.js

@@ -1,18 +1,54 @@
 import { createClient } from 'redis';
 import { createHash } from 'node:crypto';
+import { isIP } from 'node:net';
 
 /**
  * Throws an error if any of the keys are missing from the object
  */
 export async function getClient() {
-    const { REDIS_PASSWORD, REDIS_HOST } = process.env;
+    const { REDIS_PASSWORD, REDIS_HOST, REDIS_PORT, REDIS_URL } = process.env;
 
-   const client = createClient({
+    if (REDIS_URL) {
+        const client = createClient({
+            url: REDIS_URL,
+        });
+
+        await client.connect();
+
+        return client;
+    }
+
+    let host = REDIS_HOST;
+    let port = REDIS_PORT ? parseInt(REDIS_PORT, 10) : 6379;
+
+    if (host) {
+        if (isIP(host) === 6) {
+            // Bare IPv6 address, keep host intact without extracting port
+        } else if (host.startsWith('[')) {
+            const match = host.match(/^\[([^\]]+)\](?::(\d+))?$/);
+            if (match) {
+                host = match[1];
+                if (!REDIS_PORT && match[2]) {
+                    port = parseInt(match[2], 10);
+                }
+            }
+        } else {
+            const match = host.match(/^([^:]+):(\d+)$/);
+            if (match) {
+                host = match[1];
+                if (!REDIS_PORT && match[2]) {
+                    port = parseInt(match[2], 10);
+                }
+            }
+        }
+    }
+
+    const client = createClient({
         password: REDIS_PASSWORD,
         socket: {
-            host: REDIS_HOST,
-            port: 14714
-        }
+            host,
+            port,
+        },
     });
 
     await client.connect();