30 lines
926 B
Markdown
30 lines
926 B
Markdown
|
node-red-node-mysql
|
||
|
|
========================
|
||
|
|
A <a href="http://nodered.org" target="_new">Node-RED</a> node to read and write to a MySQL database.
|
||
|
|
|
||
|
|
Install
|
||
|
|
-------
|
||
|
|
|
||
|
|
Run the following command in your Node-RED user directory - typically `~/.node-red`
|
||
|
|
|
||
|
|
npm install node-red-node-mysql
|
||
|
|
|
||
|
|
|
||
|
|
Usage
|
||
|
|
-----
|
||
|
|
|
||
|
|
Allows basic access to a MySQL database.
|
||
|
|
|
||
|
|
This node uses the <b>query</b> operation against the configured database. This does allow both INSERTS and DELETES.
|
||
|
|
|
||
|
|
By it's very nature it allows SQL injection... so <i>be careful out there...</i>
|
||
|
|
|
||
|
|
The `msg.topic` must hold the <i>query</i> for the database, and the result is returned in `msg.payload`.
|
||
|
|
|
||
|
|
Typically the returned payload will be an array of the result rows.
|
||
|
|
|
||
|
|
If nothing is found for the key then <i>null</i> is returned.
|
||
|
|
|
||
|
|
The reconnect retry timeout in milliseconds can be changed by adding a line to <b>settings.js</b>
|
||
|
|
<pre>mysqlReconnectTime: 30000,</pre></p>
|