[
    {
        "id": "704479e1.399388",
        "type": "inject",
        "z": "4b63452d.672afc",
        "name": "",
        "props": [
            {
                "p": "payload"
            },
            {
                "p": "filename",
                "v": "/tmp/hello.txt",
                "vt": "str"
            },
            {
                "p": "topic",
                "vt": "str"
            }
        ],
        "repeat": "",
        "crontab": "",
        "once": false,
        "onceDelay": 0.1,
        "topic": "",
        "payload": "Hello, World!",
        "payloadType": "str",
        "x": 230,
        "y": 400,
        "wires": [
            [
                "402f3b7e.988014"
            ]
        ]
    },
    {
        "id": "8e876a75.e9beb8",
        "type": "comment",
        "z": "4b63452d.672afc",
        "name": "Write string to a file specied by filename property, the read from the file",
        "info": "File node can target file using `filename` property.",
        "x": 350,
        "y": 320,
        "wires": []
    },
    {
        "id": "402f3b7e.988014",
        "type": "file",
        "z": "4b63452d.672afc",
        "name": "",
        "filename": "",
        "appendNewline": true,
        "createDir": false,
        "overwriteFile": "true",
        "encoding": "none",
        "x": 390,
        "y": 400,
        "wires": [
            [
                "26e077d6.bbcd98"
            ]
        ]
    },
    {
        "id": "97b6b6b2.a54b38",
        "type": "debug",
        "z": "4b63452d.672afc",
        "name": "",
        "active": true,
        "tosidebar": true,
        "console": false,
        "tostatus": false,
        "complete": "false",
        "statusVal": "",
        "statusType": "auto",
        "x": 770,
        "y": 400,
        "wires": []
    },
    {
        "id": "26e077d6.bbcd98",
        "type": "file in",
        "z": "4b63452d.672afc",
        "name": "",
        "filename": "/tmp/hello.txt",
        "format": "utf8",
        "chunk": false,
        "sendError": false,
        "encoding": "none",
        "x": 580,
        "y": 400,
        "wires": [
            [
                "97b6b6b2.a54b38"
            ]
        ]
    },
    {
        "id": "85062297.da79",
        "type": "comment",
        "z": "4b63452d.672afc",
        "name": "↑read result from file",
        "info": "",
        "x": 590,
        "y": 440,
        "wires": []
    },
    {
        "id": "7316c4fc.b1dcdc",
        "type": "comment",
        "z": "4b63452d.672afc",
        "name": "↓write to file specified by filename property",
        "info": "",
        "x": 500,
        "y": 360,
        "wires": []
    }
]