Unserver 1.1.0 Release

Web App HMI Demo

We have developed a simple browser-based HMI app to demonstrate how you can implement HMI applications with Unserver.

The app allows to watch Unserver tags and make a basic plot of specific properties over time.

To open the app, run Unserver and navigate to http://localhost:9000 in your web browser.

In future posts we will cover:

• how to configure and use the app
• how the app works internally

Serving Static Content

The demo app makes use of another new feature - the content directory.

Every file in that directory will served by Unserver HTTP endpoint.

Requests to / will be redirected to /content/index.html.

This feature allows to package and serve custom client-side HMI code with Unserver.

Set Property API

Normally to set a value of a property you would need to set the whole tag. But sometimes it's useful to set properties one by one. Today we are adding this feature.

To address a single property use the following URL template:

/tags/{tag-name}/properties/{property-name}

For instance:

PUT /tags/tag1/properties/p1 HTTP/1.1

Content-Type:application/json

{
    value: 1
}