Overview

The HTTP interface can be used to integrate data and information from HTTP servers or other web services. The data exchange is bi-directional.

• Retrieving data: using polling, data can be retrieved via HTTP GET, PUT and POST requests. The HTTP response may contain XML, JSON or normal text which can be parsed using XPath, JPath or Regex.
• Updating data: via HTTP GET, PUT und POST requests, data including the server item value can be published to the foreign HTTP server. Again, XML, JSON or normal text content can be used.

The interface is available for free. Each defined HTTP data point is decreasing the available license data points by one.

Installation

The HTTP interface is provided as an extension and is not included within the default setup.

To install the HTTP interface, open the Core Studio and shutdown the Core Server. Afterwards, start the Extension Manager via the menu Extensions > Manager > Start Extension Manager ....

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Within the dialog, select "HTTP" and press the Install button. After having installed the HTTP interface, close the Core studio and reopen it. Within the Core Studio you will find a new menu HTTP. It contains entries for all definitions that are necessary for configuration the HTTP interface.

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Configuration

• Driver configuration
• HTTP data point definition
• HTTP resource definition
• HTTP bearer authentication definition

Interface is available for the following products: 

• NETx BMS Platform
• NETx Multi Protocol Server
• NETx BMS Server 2.0

Changelog

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Fixes

• Write-only data point definition makes succeeding definitions invalid – fixed.

Improvements

• Configuration checks extended.

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New features

• Updates via HTTP GET method and URL encoded parameters possible now
• A manual configuration of web proxy is possible now
• Simulation mode available
• Support for main/backup solution
• New resource type "Text" for parsing response with regular expressions and update normal text messages

Further articles