## Connecting to Redis
To establish a connection with the Redis data source, you can either click on the **+ Add new Data source** button located on the query panel or navigate to the **[Data Sources](/docs/data-sources/overview)** page from the ToolJet dashboard and choose Redis as the data source.
To connect ToolJet with Redis, you need to provide the following connection details:
- **Host**: The address or hostname of the Redis server.
- **Port**: The port number used by the Redis server (default is 6379).
- **Database**: The Redis database index to connect (0, 1 or 2).
- **Username**: The username used for authentication.
- **Password**: The password used for authentication.
- **TLS**: Toggle to enable/disable TLS connection.
- **TLS Certificate**: Choose the type of TLS certificate (None, CA certificate, or Client certificate).
Depending on the TLS certificate option selected, you may need to provide additional information:
- For **CA certificate**:
- **CA Cert**: The CA certificate for TLS connection.
- For **Client certificate**:
- **CA Cert**: The CA certificate for TLS connection.
- **Client Key**: The client key for TLS connection.
- **Client Cert**: The client certificate for TLS connection.
## Querying Redis
1. Click on **+ Add** button of the query manager at the bottom panel of the editor.
2. Select the **Redis** datasource added in previous step.
3. Enter the query.
4. Click on the **Preview** button to preview the output or Click on the **Run** button to trigger the query.
Here are some examples of Redis commands and their usage. You can refer to the [Redis Official Documentation](https://redis.io/commands) for a complete list of supported commands.
### PING Command
The `PING` command is used to test the connection to Redis. If the connection is successful, the Redis server will respond with **PONG**.
```shell
PING
```
### SET Command
The `SET` command is used in Redis to assign a value to a specific key.
```shell
SET key value
```
#### Example
When the input value contains spaces, you should encode the value before providing it as an input:
```shell
SET products {{encodeURI('John Doe')}}
```
### GET Command
The `GET` command is used in Redis to retrieve the value associated with a specific key.
```shell
GET key
```
#### Example
To retrieve a value that was previously encoded while setting, you can use transformations.
1. Enter the GET command in the editor:
```shell
GET products
```
2. Enable Transformations (JS) and use `decodeURI`:
```js
return JSON.parse(decodeURI(data));
```
