# Redis

UI Bakery allows you to easily connect to a Redis database with no need for additional layers like APIs or third-party services.

## Configuration

### Prerequisites

If your database is hosted behind a Firewall, you need to add our [IP addresses](https://docs.uibakery.io/concepts/data-sources#whitelisting-ip-addresses) to the Firewall whitelist.

### Connecting the data source

1. On the **Data sources** page, click **Connect**, and select *Redis* in the Data sources list.
2. Specify the required credentials:
   1. **Host**
   2. **Port**
   3. **Password** (if your Redis instance is in the [protected mode](https://redis.io/docs/latest/operate/oss_and_stack/management/security/))
   4. **Database number**
3. Click **Test connection** to check whether the connection can be established, and then click **Connect Datasource** to complete the setup.

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## Usage

Once you have established the connection between UI Bakery and Redis, you can manage its data. \
UI Bakery allows executing most of the [Redis Commands](https://redis.io/commands/). \
A command should be sent as an **array** where the first element is a string representing *Redis Command type*, and the other elements of an array are *command arguments*, for example:

```javascript
['GET', 'key']
```

* It is also possible to send multiple commands at once as an *array of arrays*:

```javascript
[ ['GET', 'key1'], ['GET', 'key2'] ]
```

* UI Bakery also converts all input non-string command arguments to strings except for the `undefined` and `null` values - they are converted to empty strings. \
  \
  For example, if you execute `['SET', 'number', 42]` followed by `['GET', 'number']`, the result string will be `"42"`. \
  If you want to convert the value back to a number, you should use `Number({{data}})` in the result mapper.

For more Redis Command examples, check out [this page](https://docs.uibakery.io/reference/working-with-actions/redis-command).


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