node-red-contrib-tdengine

This repositry create a custom Node-Red node for configing TDEngine server connection and execute SQL from preview node msg.payload

Design

Use Taos data restful API to commit SQL, API call like

curl -H 'Authorization: Basic <TOKEN>' -d '<SQL>' <ip>:<PORT>/rest/sql/[db_name]

Input options:

• DB Server: Setup server connection or select a exist server
• DB Name: Database to execute SQL

Use axios to call http request

Usage

1. Start Node-Red
2. Install TDEngine node
3. Add "taos query" node to workspace from palette
4. Setup a TDEngine server and database name
5. Add function or other node to create SQL, put SQL into msg.payload
6. Link to "taos query" node

Demo

1. Start Node-Red by docker

docker run -it -p 1880:1880 -v node_red_data:/data --name mynodered nodered/node-red

2. Import sample flow "demo/flow.json"
3. Install TDEngine node by name "node-red-contrib-tdengine", current version is 0.0.2
4. Modify your TDEngine server config
5. Edit test SQL
6. Start flow by click Inject node