metabuilder/packages/data_table/workflow/fetch-data.json

{
  "name": "Fetch Data for Table",
  "active": false,
  "nodes": [
    {
      "id": "validate_tenant_critical",
      "name": "Validate Tenant Critical",
      "type": "metabuilder.validate",
      "typeVersion": 1,
      "position": [
        100,
        100
      ],
      "parameters": {
        "input": "{{ $context.tenantId }}",
        "operation": "validate",
        "validator": "required",
        "errorMessage": "tenantId is REQUIRED for multi-tenant safety - data leak prevention"
      }
    },
    {
      "id": "validate_user_critical",
      "name": "Validate User Critical",
      "type": "metabuilder.validate",
      "typeVersion": 1,
      "position": [
        400,
        100
      ],
      "parameters": {
        "input": "{{ $context.user.id }}",
        "operation": "validate",
        "validator": "required",
        "errorMessage": "userId is REQUIRED for row-level ACL"
      }
    },
    {
      "id": "validate_input",
      "name": "Validate Input",
      "type": "metabuilder.validate",
      "typeVersion": 1,
      "position": [
        700,
        100
      ],
      "parameters": {
        "input": "{{ $json }}",
        "operation": "validate",
        "rules": {
          "entity": "required|string",
          "sortBy": "string",
          "sortOrder": "string",
          "limit": "number|max:500",
          "page": "number|min:1"
        }
      }
    },
    {
      "id": "extract_params",
      "name": "Extract Params",
      "type": "metabuilder.transform",
      "typeVersion": 1,
      "position": [
        100,
        300
      ],
      "parameters": {
        "output": {
          "entity": "{{ $json.entity }}",
          "sortBy": "{{ $json.sortBy || 'createdAt' }}",
          "sortOrder": "{{ $json.sortOrder === 'asc' ? 1 : -1 }}",
          "limit": "{{ Math.min($json.limit || 50, 500) }}",
          "page": "{{ $json.page || 1 }}"
        },
        "operation": "transform_data"
      }
    },
    {
      "id": "calculate_offset",
      "name": "Calculate Offset",
      "type": "metabuilder.transform",
      "typeVersion": 1,
      "position": [
        400,
        300
      ],
      "parameters": {
        "output": "{{ ($steps.extract_params.output.page - 1) * $steps.extract_params.output.limit }}",
        "operation": "transform_data"
      }
    },
    {
      "id": "build_filter",
      "name": "Build Filter",
      "type": "metabuilder.transform",
      "typeVersion": 1,
      "position": [
        700,
        300
      ],
      "parameters": {
        "output": {
          "tenantId": "{{ $context.tenantId }}",
          "searchTerm": "{{ $json.search || null }}",
          "filters": "{{ $json.filters || {} }}"
        },
        "operation": "transform_data"
      }
    },
    {
      "id": "apply_user_acl",
      "name": "Apply User Acl",
      "type": "metabuilder.condition",
      "typeVersion": 1,
      "position": [
        100,
        500
      ],
      "parameters": {
        "condition": "{{ $context.user.level >= 3 || $build_filter.output.filters.userId === $context.user.id }}",
        "operation": "condition"
      }
    },
    {
      "id": "fetch_data",
      "name": "Fetch Data",
      "type": "n8n-nodes-base.httpRequest",
      "typeVersion": 1,
      "position": [
        400,
        500
      ],
      "parameters": {
        "operation": "http_request",
        "url": "{{ '/api/v1/' + $context.tenantId + '/' + $steps.extract_params.output.entity }}",
        "method": "GET",
        "queryParameters": {
          "tenantId": "{{ $context.tenantId }}",
          "sortBy": "{{ $steps.extract_params.output.sortBy }}",
          "sortOrder": "{{ $steps.extract_params.output.sortOrder }}",
          "limit": "{{ $steps.extract_params.output.limit }}",
          "offset": "{{ $steps.calculate_offset.output }}",
          "filters": "{{ JSON.stringify($steps.build_filter.output.filters) }}"
        },
        "headers": {
          "Authorization": "{{ 'Bearer ' + $context.token }}"
        }
      }
    },
    {
      "id": "validate_response",
      "name": "Validate Response",
      "type": "metabuilder.condition",
      "typeVersion": 1,
      "position": [
        700,
        500
      ],
      "parameters": {
        "condition": "{{ $steps.fetch_data.output.status === 200 }}",
        "operation": "condition"
      }
    },
    {
      "id": "parse_response",
      "name": "Parse Response",
      "type": "metabuilder.transform",
      "typeVersion": 1,
      "position": [
        100,
        700
      ],
      "parameters": {
        "input": "{{ $steps.fetch_data.output.body }}",
        "output": {
          "data": "{{ $steps.fetch_data.output.body.data }}",
          "total": "{{ $steps.fetch_data.output.body.total }}"
        },
        "operation": "transform_data"
      }
    },
    {
      "id": "format_response",
      "name": "Format Response",
      "type": "metabuilder.transform",
      "typeVersion": 1,
      "position": [
        400,
        700
      ],
      "parameters": {
        "output": {
          "data": "{{ $steps.parse_response.output.data }}",
          "pagination": {
            "total": "{{ $steps.parse_response.output.total }}",
            "page": "{{ $steps.extract_params.output.page }}",
            "limit": "{{ $steps.extract_params.output.limit }}",
            "totalPages": "{{ Math.ceil($steps.parse_response.output.total / $steps.extract_params.output.limit) }}"
          },
          "sorting": {
            "sortBy": "{{ $steps.extract_params.output.sortBy }}",
            "sortOrder": "{{ $steps.extract_params.output.sortOrder === 1 ? 'asc' : 'desc' }}"
          }
        },
        "operation": "transform_data"
      }
    },
    {
      "id": "return_success",
      "name": "Return Success",
      "type": "metabuilder.action",
      "typeVersion": 1,
      "position": [
        700,
        700
      ],
      "parameters": {
        "action": "http_response",
        "status": 200,
        "body": "{{ $steps.format_response.output }}"
      }
    }
  ],
  "connections": {
    "validate_tenant_critical": {
      "main": [
        [
          {
            "node": "validate_user_critical",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "validate_user_critical": {
      "main": [
        [
          {
            "node": "validate_input",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "validate_input": {
      "main": [
        [
          {
            "node": "extract_params",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "extract_params": {
      "main": [
        [
          {
            "node": "calculate_offset",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "calculate_offset": {
      "main": [
        [
          {
            "node": "build_filter",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "build_filter": {
      "main": [
        [
          {
            "node": "apply_user_acl",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "apply_user_acl": {
      "main": [
        [
          {
            "node": "fetch_data",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "fetch_data": {
      "main": [
        [
          {
            "node": "validate_response",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "validate_response": {
      "main": [
        [
          {
            "node": "parse_response",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "parse_response": {
      "main": [
        [
          {
            "node": "format_response",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "format_response": {
      "main": [
        [
          {
            "node": "return_success",
            "type": "main",
            "index": 0
          }
        ]
      ]
    }
  },
  "staticData": {},
  "meta": {},
  "settings": {
    "timezone": "UTC",
    "executionTimeout": 3600,
    "saveExecutionProgress": true,
    "saveDataErrorExecution": "all",
    "saveDataSuccessExecution": "all"
  },
  "id": "workflow_fetch_data",
  "version": "3.0.0",
  "tenantId": "${TENANT_ID}"
}