Require

The methods can include external modules, example var os = require('os');

get hostname and dirname

Configuration

{
    "methods": {
        "onTransition": [
            "var os = require('os');",
            "var hostname = os.hostname();",
            "msg.payload = 'host: ' + hostname + '; dir: ' + __dirname;",
            "output = true;"
        ],
        "status": {
            "shape": "dot",
            "text": {
                "get": "msg.payload"
            }
        }
    }
}

Flow

[{"id":"3f70b80d.fd6708","type":"dsm","z":"12f1321f.454d1e","name":"require","sm_config":"{\n    \"methods\": {\n        \"onTransition\": [\n            \"var os = require('os');\",\n            \"var hostname = os.hostname();\",\n            \"msg.payload = 'host: ' + hostname + '; dir: ' + __dirname;\",\n            \"output = true;\"\n        ],\n        \"status\": {\n            \"shape\": \"dot\",\n            \"text\": {\n                \"get\": \"msg.payload\"\n            }\n        }\n    }\n}\n","x":260,"y":580,"wires":[["ba7a5bf7.9b74a8"]]},{"id":"fd9d2f22.4aa8b","type":"inject","z":"12f1321f.454d1e","name":"","topic":"","payload":"","payloadType":"date","repeat":"","crontab":"","once":false,"onceDelay":0.1,"x":120,"y":580,"wires":[["3f70b80d.fd6708"]]},{"id":"ba7a5bf7.9b74a8","type":"debug","z":"12f1321f.454d1e","name":"","active":true,"tosidebar":true,"console":false,"tostatus":false,"complete":"false","x":410,"y":580,"wires":[]}]

Get version

Configuration

{
    "methods": {
            "onTransition": [
            "var exec = require('child_process').exec;",
            "var cmd = 'npm view node-red-contrib-dsm version';",
            "exec(cmd, function(error, stdout, stderr) {",
            "   msg.payload = 'version ' + stdout.trim();",
            "   node.send(msg);",
            "});"
        ],
        "status": {
            "fill": "blue",
            "shape": "dot",
            "text": "reading ..."
        }
    }
}

Flow

[{"id":"3f70b80d.fd6708","type":"dsm","z":"12f1321f.454d1e","name":"get version","sm_config":"{\n    \"methods\": {\n            \"onTransition\": [\n            \"var exec = require('child_process').exec;\",\n            \"var cmd = 'npm view node-red-contrib-dsm version';\",\n            \"exec(cmd, function(error, stdout, stderr) {\",\n            \"   msg.payload = 'version ' + stdout.trim();\",\n            \"   node.send(msg);\",\n            \"});\"\n        ],\n        \"status\": {\n            \"fill\": \"blue\",\n            \"shape\": \"dot\",\n            \"text\": \"reading ...\"\n        }\n    }\n}\n","x":280,"y":580,"wires":[["ba7a5bf7.9b74a8"]]},{"id":"fd9d2f22.4aa8b","type":"inject","z":"12f1321f.454d1e","name":"","topic":"","payload":"","payloadType":"date","repeat":"","crontab":"","once":false,"onceDelay":0.1,"x":120,"y":580,"wires":[["3f70b80d.fd6708"]]},{"id":"ba7a5bf7.9b74a8","type":"debug","z":"12f1321f.454d1e","name":"","active":true,"tosidebar":true,"console":false,"tostatus":false,"complete":"false","x":450,"y":580,"wires":[]}]