metabuilder/packages/data_table/workflow/pagination.json

{
  "name": "Handle Data Table Pagination",
  "active": false,
  "nodes": [
    {
      "id": "extract_pagination_params",
      "name": "Extract Pagination Params",
      "type": "metabuilder.transform",
      "typeVersion": 1,
      "position": [
        100,
        100
      ],
      "parameters": {
        "input": "{{ $json }}",
        "output": {
          "page": "{{ Math.max($json.page || 1, 1) }}",
          "limit": "{{ Math.min($json.limit || 50, 500) }}"
        },
        "operation": "transform_data"
      }
    },
    {
      "id": "calculate_offset",
      "name": "Calculate Offset",
      "type": "metabuilder.transform",
      "typeVersion": 1,
      "position": [
        400,
        100
      ],
      "parameters": {
        "output": "{{ ($steps.extract_pagination_params.output.page - 1) * $steps.extract_pagination_params.output.limit }}",
        "operation": "transform_data"
      }
    },
    {
      "id": "slice_data",
      "name": "Slice Data",
      "type": "metabuilder.transform",
      "typeVersion": 1,
      "position": [
        700,
        100
      ],
      "parameters": {
        "input": "{{ $json.data }}",
        "output": "{{ $json.data.slice($steps.calculate_offset.output, $steps.calculate_offset.output + $steps.extract_pagination_params.output.limit) }}",
        "operation": "transform_data"
      }
    },
    {
      "id": "calculate_total_pages",
      "name": "Calculate Total Pages",
      "type": "metabuilder.transform",
      "typeVersion": 1,
      "position": [
        100,
        300
      ],
      "parameters": {
        "output": "{{ Math.ceil($json.data.length / $steps.extract_pagination_params.output.limit) }}",
        "operation": "transform_data"
      }
    },
    {
      "id": "return_paginated",
      "name": "Return Paginated",
      "type": "metabuilder.action",
      "typeVersion": 1,
      "position": [
        400,
        300
      ],
      "parameters": {
        "data": {
          "data": "{{ $steps.slice_data.output }}",
          "pagination": {
            "page": "{{ $steps.extract_pagination_params.output.page }}",
            "limit": "{{ $steps.extract_pagination_params.output.limit }}",
            "total": "{{ $json.data.length }}",
            "totalPages": "{{ $steps.calculate_total_pages.output }}",
            "hasMore": "{{ $steps.extract_pagination_params.output.page < $steps.calculate_total_pages.output }}"
          }
        },
        "action": "emit_event",
        "event": "data_paginated"
      }
    }
  ],
  "connections": {
    "extract_pagination_params": {
      "main": [
        [
          {
            "node": "calculate_offset",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "calculate_offset": {
      "main": [
        [
          {
            "node": "slice_data",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "slice_data": {
      "main": [
        [
          {
            "node": "calculate_total_pages",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "calculate_total_pages": {
      "main": [
        [
          {
            "node": "return_paginated",
            "type": "main",
            "index": 0
          }
        ]
      ]
    }
  },
  "staticData": {},
  "meta": {},
  "settings": {
    "timezone": "UTC",
    "executionTimeout": 3600,
    "saveExecutionProgress": true,
    "saveDataErrorExecution": "all",
    "saveDataSuccessExecution": "all"
  },
  "id": "workflow_pagination",
  "version": "3.0.0",
  "tenantId": "${TENANT_ID}"
}