[{"id":"cb6ff6a7.809a98","type":"file","z":"7acae3fb.501d9c","name":"","filename":"/home/pi/usbdrv/datalog.csv","appendNewline":true,"createDir":false,"overwriteFile":"false","x":1533.9998779296875,"y":579.6666564941406,"wires":[]},{"id":"267e40d.02cddc","type":"function","z":"7acae3fb.501d9c","name":"","func":"\nvar csv = convertArrayOfObjectsToCSV(msg.payload);\nfunction convertArrayOfObjectsToCSV(args) {  \n        var result, ctr, keys, columnDelimiter, lineDelimiter, data;\n\n        data = args.data || null;\n        if (data === null || !data.length) {\n            return null;\n        }\n\n        columnDelimiter = args.columnDelimiter || ',';\n        lineDelimiter = args.lineDelimiter || '\\n';\n\n        keys = Object.keys(data[0]);\n\n        result = '';\n        result += keys.join(columnDelimiter);\n        result += lineDelimiter;\n\n        data.forEach(function(item) {\n            ctr = 0;\n            keys.forEach(function(key) {\n                if (ctr > 0) result += columnDelimiter;\n\n                result += item[key];\n                ctr++;\n            });\n            result += lineDelimiter;\n        });\n\n        return result;\n    }\n    msg.payload = csv;\nreturn msg;","outputs":1,"noerr":0,"x":1531.9998779296875,"y":493.6666564941406,"wires":[["30b8dea2.cd0d62","cb6ff6a7.809a98"]]}]