WISE-PaaS 2.0 NodeRed

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Introduction

Node-RED is a visual wiring tool for the Internet of Things and is provided by IBM Emerging Technologies. Node-Red has several features, including browser-based flow editing, built on Node.js and social development. Because of browser-based, the user can use it more easily. Node-Red is based on Node.js, so user can use its nodes by using JavaScript. Node-Red also have many active communities. If the user finds bugs, he can find a solution and fix it easily. The user can use JSON format string to import or export the created flow easily.

According to the restful API of WISE-PaaS 2.0, we created several nodes.

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How to install Node-Red Plug-ins for WISE-PaaS 2.0

Nodejs2.png   Nodejs3.png

  • Clone EI-NodeRed from GitLab
  • Open cmd.exe and navigate to ./EI-NodeRed folder


   cd ./EI-NodeRed
  • Type command line"npm install" to install the node-red dependencies


   npm install
  • Type command line"npm run build" to build the code of Node-Red


   npm run build
  • Type command line"npm start" or "node red.js" to run Node-Red
   npm start

or

   node red.js

Node-Red Plug-ins Categories

Category
Description
Nodes
General
The settings of IP address, port number, login username/password of WISE-PaaS server. Retrieval of device and sensor information.
  1. ServerConfig
Common Query the data and the information of devices, plugins and sensors
  1. DevicesQuery
  2. PluginsQuery
  3. SensorsQuery
  4. DataQuery

Node-Red Plug-ins Description

Node Name Description
Input
Output
ServerConfig Set url, port, username and password for WISE-PaaS 2.0 server. The node provides Basic type and SSO type.
A timestamp trigger or button trigger.
msg.url, msg.port, msg.encodestr.
DevicesQuery
Retrieve devices information from WISE-PaaS 2.0 server. User can fill a specific device id. The text of DeviceID can be blank if user wants to retrieve all devices.
ServerConfig Node.
Devices information list.
PluginsQuery
Retrieve plugins by Device ID within a time range. The maximum number of values is 10000 from WISE-PaaS 2.0 server. User can set the conditions about plugins here. Ex: Device ID, Agent ID, begin timestamp, end timestamp, amount and type.
ServerConfig Node.
Plugins Information list.
SensorsQuery
Retrieve sensors by Device ID & plugin within a time range. The maximum number of values is 10000 from WISE-PaaS 2.0 server. User can set the conditions about sensor here. Ex: Device ID, Agent ID, Plugin Name, begin timestamp, end timestamp, amount and type.
ServerConfig Node.
Sensors Information list.
DataQuery
Retrieve data from WISE-PaaS 2.0 server. The node provides three types, they are history, latest and statistic
ServerConfig Node.
The data ofhistory, statistic orlatest by specific device Id within a time range.

Document

Node-Red Plug-ins User Menual Doc for WISE-PaaS 2.0