DOC-4543 split node-redis client page

Author: andy-stark-redis

content/develop/clients/nodejs.md

@@ -0,0 +1,95 @@
+---
+categories:
+- docs
+- develop
+- stack
+- oss
+- rs
+- rc
+- oss
+- kubernetes
+- clients
+description: Connect your Node.js application to a Redis database
+linkTitle: node-redis (Node.js)
+title: node-redis guide (Node.js)
+weight: 4
+---
+
+[node-redis](https://github.com/redis/node-redis) is the Redis client for Node.js.
+The sections below explain how to install `node-redis` and connect your application
+to a Redis database.
+
+`node-redis` requires a running Redis or [Redis Stack]({{< relref "/operate/oss_and_stack/install/install-stack/" >}}) server. See [Getting started]({{< relref "/operate/oss_and_stack/install/" >}}) for Redis installation instructions.
+
+You can also access Redis with an object-mapping client interface. See
+[RedisOM for Node.js]({{< relref "/integrate/redisom-for-node-js" >}})
+for more information.
+
+## Install
+
+To install node-redis, run:
+
+```bash
+npm install redis
+```
+
+## Connect and test
+
+Connect to localhost on port 6379. 
+
+```js
+import { createClient } from 'redis';
+
+const client = createClient();
+
+client.on('error', err => console.log('Redis Client Error', err));
+
+await client.connect();
+```
+
+Store and retrieve a simple string.
+
+```js
+await client.set('key', 'value');
+const value = await client.get('key');
+```
+
+Store and retrieve a map.
+
+```js
+await client.hSet('user-session:123', {
+    name: 'John',
+    surname: 'Smith',
+    company: 'Redis',
+    age: 29
+})
+
+let userSession = await client.hGetAll('user-session:123');
+console.log(JSON.stringify(userSession, null, 2));
+/*
+{
+  "surname": "Smith",
+  "name": "John",
+  "company": "Redis",
+  "age": "29"
+}
+ */
+```
+
+To connect to a different host or port, use a connection string in the format `redis[s]://[[username][:password]@][host][:port][/db-number]`:
+
+```js
+createClient({
+  url: 'redis://alice:[email protected]:6380'
+});
+```
+To check if the client is connected and ready to send commands, use `client.isReady`, which returns a Boolean. `client.isOpen` is also available. This returns `true` when the client's underlying socket is open, and `false` when it isn't (for example, when the client is still connecting or reconnecting after a network error).
+
+## More information
+
+The [`node-redis` website](https://redis.js.org/) has more examples.
+The [Github repository](https://github.com/redis/node-redis) also has useful
+information, including a guide to the
+[connection configuration options](https://github.com/redis/node-redis/blob/master/docs/client-configuration.md) you can use.
+
+See also the other pages in this section for more information and examples: