[
  {
    "id": "fcall-comment",
    "type": "comment",
    "z": "fcall-flow",
    "name": "Redis Functions: FUNCTION LOAD + FCALL",
    "info": "The redis lua node in Function mode loads the library source (FUNCTION LOAD REPLACE) on deploy, then calls the registered function `getval` with FCALL. Inject sends [key] as KEYS[1]; the debug node shows the returned value. Manage libraries (LIST/FLUSH/DELETE) with the redis-command node.",
    "x": 230,
    "y": 80,
    "wires": []
  },
  {
    "id": "fcall-inject",
    "type": "inject",
    "z": "fcall-flow",
    "name": "key: demo:fcall",
    "props": [{ "p": "payload" }],
    "repeat": "",
    "once": false,
    "topic": "",
    "payload": "[\"demo:fcall\"]",
    "payloadType": "json",
    "x": 180,
    "y": 160,
    "wires": [["fcall-node"]]
  },
  {
    "id": "fcall-node",
    "type": "redis-lua-script",
    "z": "fcall-flow",
    "server": "fcall-config",
    "name": "FCALL getval",
    "mode": "function",
    "readonly": false,
    "keyval": 1,
    "func": "#!lua name=demolib\nredis.register_function('getval', function(keys, args) return redis.call('GET', keys[1]) end)",
    "fname": "getval",
    "stored": false,
    "block": false,
    "x": 430,
    "y": 160,
    "wires": [["fcall-debug"]]
  },
  {
    "id": "fcall-debug",
    "type": "debug",
    "z": "fcall-flow",
    "name": "result",
    "active": true,
    "tosidebar": true,
    "complete": "payload",
    "targetType": "msg",
    "x": 650,
    "y": 160,
    "wires": []
  },
  {
    "id": "fcall-config",
    "type": "redis-config",
    "name": "localhost",
    "options": "{\"host\":\"127.0.0.1\",\"port\":6379}",
    "optionsType": "json",
    "cluster": false
  }
]