Working with the List Asset Holders Node in Run Time Mode

In this quick tutorial, we will cover Working with the List Asset Holders Node in Run-Time Mode, by creating a flow containing the List Asset Holders Node.

In this video we will cover:

• Adding the node’s configuration information based on your needs to each field
• How this node works
• Finding the JSON edit box
• Deploying and testing your flow
• How to get your API call results

Prerequisite

• A Free Catenis Development account or Production account
• Node-RED installed on either a local or cloud environment
• Catenis Flow Pallet installed on Node-RED
• A Catenis Virtual Device configured on Node-RED
• Basic understanding of how to use Node-RED
• Basic understanding of how the List Asset Holders Node works

After watching Working with the List Asset Holders Node in Run-Time Mode, feel free to watch the next video, Working with the List Asset Holders Node in Interactive Mode, to further expand your knowledge.

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Links from this video for easy access:

• Understanding the List Asset Holders Node: https://blockchainofthings.com/tutorials/understand-list-asset-holder-node
• How to Configure a Virtual Device: https://blockchainofthings.com/tutorials/configure-virtual-device
• Working with the List Asset Holders Node in Interactive Mode: https://blockchainofthings.com/tutorials/work-with-list-asset-holders-node-IM

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[Music]

Hi, this is Claire for Blockchain of Things.

In this tutorial, we’ll create a flow containing the List Asset Holders Node.

If you don’t know what a List Asset Holders Node is,

make sure you check out the previous video

titled “Understanding the List Asset Holders Node”.

Which you can do at this link:

Let’s jump in!

Drag a List Asset Holders Node into your workspace.

Double-click it to display its properties slide-out panel.

On the device drop-down field, choose your Catenis Virtual Device.

Add the node’s configuration information based on your needs to each field.

Wire this node, to a Debug Node and open the Debug Sidebar.

Next, drag-and-drop an Inject Node to the Node-RED workspace,

and wire the Inject Node to the List Asset Holders Node.

Then, double-click the Inject Node to open its property slide-out panel.

Select the drop-down payload field, and choose the JSON type.

An ellipse button will appear to the right of the field.

Click this ellipse button to display a JSON edit box.

Enter the JSON information you wish to pass as input to the Catenis Node.

For example, something like this

but using your own asset ID.

Click the done button.

Then, click the done button again to exit the properties dialog box.

Now, click deploy.

Now, let’s test the flow!

Click the button on the left of the Inject Node

to send the input from the Inject Node through the flow.

The Debug Sidebar should display the returned JSON

object containing the API call results to the right side of the workspace.

Fantastic!

Now, you’re ready for our next tutorial.

Where you’ll learn how to work with the List Asset Holders Node in Interactive Mode.

[Music]