[
    {
        "id": "e4ef1f5e.7cd82",
        "type": "inject",
        "z": "4b63452d.672afc",
        "name": "",
        "props": [
            {
                "p": "payload"
            },
            {
                "p": "topic",
                "vt": "str"
            }
        ],
        "repeat": "",
        "crontab": "",
        "once": false,
        "onceDelay": 0.1,
        "topic": "",
        "payload": "8J+YgA==",
        "payloadType": "str",
        "x": 220,
        "y": 820,
        "wires": [
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                "72b37cc8.177054"
            ]
        ]
    },
    {
        "id": "f5997af4.5a9298",
        "type": "comment",
        "z": "4b63452d.672afc",
        "name": "Specify encoding of written data",
        "info": "File node can specify encoding of data.",
        "x": 230,
        "y": 740,
        "wires": []
    },
    {
        "id": "72b37cc8.177054",
        "type": "file",
        "z": "4b63452d.672afc",
        "name": "",
        "filename": "/tmp/hello.txt",
        "appendNewline": true,
        "createDir": false,
        "overwriteFile": "true",
        "encoding": "base64",
        "x": 400,
        "y": 820,
        "wires": [
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                "2da33ec.f45cac2"
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        ]
    },
    {
        "id": "2e814354.278c8c",
        "type": "debug",
        "z": "4b63452d.672afc",
        "name": "",
        "active": true,
        "tosidebar": true,
        "console": false,
        "tostatus": false,
        "complete": "false",
        "statusVal": "",
        "statusType": "auto",
        "x": 790,
        "y": 820,
        "wires": []
    },
    {
        "id": "2da33ec.f45cac2",
        "type": "file in",
        "z": "4b63452d.672afc",
        "name": "",
        "filename": "/tmp/hello.txt",
        "format": "utf8",
        "chunk": false,
        "sendError": false,
        "encoding": "none",
        "x": 600,
        "y": 820,
        "wires": [
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                "2e814354.278c8c"
            ]
        ]
    },
    {
        "id": "ec754c99.84bfd",
        "type": "comment",
        "z": "4b63452d.672afc",
        "name": "↓write string with base64 encoding",
        "info": "",
        "x": 460,
        "y": 780,
        "wires": []
    },
    {
        "id": "3e6704ff.4ce25c",
        "type": "comment",
        "z": "4b63452d.672afc",
        "name": "↑read result from file",
        "info": "",
        "x": 610,
        "y": 860,
        "wires": []
    }
]