# Create a flow with a single prompt
<a name="flows-ex-prompt"></a>

The following image shows a flow consisting of a single prompt, defined inline in the node. The prompt generates a playlist of songs from a JSON object input that includes the genre and the number of songs to include in the playlist. 

![Example of using a prompt node with two variables.](http://docs.aws.amazon.com/bedrock/latest/userguide/images/flows/flows-prompt.png)


**To build and test this flow in the console**

1. Create a flow by following the instructions at [Create your first flow in Amazon Bedrock](flows-get-started.md).

1. Set up the prompt node by doing the following:

   1. Select the **Prompt** node in the center pane.

   1. Select the **Configure** tab in the **Flow builder** pane.

   1. Enter **MakePlaylist** as the **Node name**.

   1. Choose **Define in node**.

   1. Set up the following configurations for the prompt:

      1. Under **Select model**, select a model to run inference on the prompt.

      1. In the **Message** text box, enter **Make me a {{genre}} playlist consisting of the following number of songs: {{number}}.**. This creates two variables that will appear as inputs into the node.

      1. (Optional) Modify the **Inference configurations**. 

      1. (Optional) If supported by the model, you can configure prompt **Caching** for the prompt message. For more information, see [Create and design a flow in Amazon Bedrock](flows-create.md).

   1. Expand the **Inputs** section. The names for the inputs are prefilled by the variables in the prompt message. Configure the inputs as follows:  
****    
[See the AWS documentation website for more details](http://docs.aws.amazon.com/bedrock/latest/userguide/flows-ex-prompt.html)

      This configuration means that the prompt node expects a JSON object containing a field called `genre` that will be mapped to the `genre` input and a field called `number` that will be mapped to the `number` input.

   1. You can't modify the **Output**. It will be the response from the model, returned as a string.

1. Choose the **Flow input** node and select the **Configure** tab. Select **Object** as the **Type**. This means that flow invocation will expect to receive a JSON object.

1. Connect your nodes to complete the flow by doing the following:

   1. Drag a connection from the output node of the **Flow input** node to the **genre** input in the **MakePlaylist** prompt node.

   1. Drag a connection from the output node of the **Flow input** node to the **number** input in the **MakePlaylist** prompt node.

   1. Drag a connection from the output node of the **modelCompletion** output in the **MakePlaylist** prompt node to the **document** input in the **Flow output** node.

1. Choose **Save** to save your flow. Your flow should now be prepared for testing.

1. Test your flow by entering the following JSON object is the **Test flow** pane on the right. Choose **Run** and the flow should return a model response.

   ```
   {
       "genre": "pop",
       "number": 3
   }
   ```