The workflow JSON

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{
  "name": "Variables Example Workflow",
  "nodes": [
    {
      "parameters": {},
      "id": "start",
      "name": "Start",
      "type": "n8n-nodes-base.start",
      "typeVersion": 1,
      "position": [
        240,
        300
      ]
    },
    {
      "parameters": {
        "operation": "set",
        "variableName": "apiUrl",
        "variableValue": "https://api.example.com",
        "valueType": "string"
      },
      "id": "set-variable",
      "name": "Set API URL",
      "type": "n8n-nodes-variables-store.variablesSet",
      "typeVersion": 1,
      "position": [
        460,
        300
      ]
    },
    {
      "parameters": {
        "operation": "set",
        "variableName": "config",
        "variableValue": "{\"timeout\": 5000, \"retries\": 3}",
        "valueType": "json"
      },
      "id": "set-config",
      "name": "Set Config",
      "type": "n8n-nodes-variables-store.variablesSet",
      "typeVersion": 1,
      "position": [
        680,
        300
      ]
    },
    {
      "parameters": {
        "operation": "get",
        "variableName": "apiUrl",
        "defaultValue": "https://default.api.com"
      },
      "id": "get-api-url",
      "name": "Get API URL",
      "type": "n8n-nodes-variables-store.variablesGet",
      "typeVersion": 1,
      "position": [
        900,
        300
      ]
    },
    {
      "parameters": {
        "operation": "getAll"
      },
      "id": "get-all-vars",
      "name": "Get All Variables",
      "type": "n8n-nodes-variables-store.variablesGet",
      "typeVersion": 1,
      "position": [
        1120,
        300
      ]
    }
  ],
  "connections": {
    "Start": {
      "main": [
        [
          {
            "node": "Set API URL",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Set API URL": {
      "main": [
        [
          {
            "node": "Set Config",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Set Config": {
      "main": [
        [
          {
            "node": "Get API URL",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Get API URL": {
      "main": [
        [
          {
            "node": "Get All Variables",
            "type": "main",
            "index": 0
          }
        ]
      ]
    }
  }
}

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