Notion Workflow to Convert a page content to Markdown.

Notion_Page_To_Markdown.json

{
  "name": "Get Notion Page as Markdown",
  "nodes": [
    {
      "parameters": {
        "workflowInputs": {
          "values": [
            {
              "name": "id"
            }
          ]
        }
      },
      "type": "n8n-nodes-base.executeWorkflowTrigger",
      "typeVersion": 1.1,
      "position": [
        0,
        0
      ],
      "id": "923b21e3-4cc6-4c1d-891a-741294a15a22",
      "name": "When Executed by Another Workflow"
    },
    {
      "parameters": {
        "resource": "block",
        "operation": "getAll",
        "blockId": {
          "__rl": true,
          "value": "={{ $json.id }}",
          "mode": "id"
        },
        "returnAll": true
      },
      "type": "n8n-nodes-base.notion",
      "typeVersion": 2.2,
      "position": [
        220,
        0
      ],
      "id": "f3492a23-7afb-4e8b-a236-cb580ac36af5",
      "name": "Notion",
      "credentials": {
        "notionApi": {
          "id": "AU2OswMIKpgpSkxd",
          "name": "TSL Notion"
        }
      }
    },
    {
      "parameters": {
        "jsCode": "/* Helper function to extract plain text from a rich_text array */\nfunction parseRichText(richTextArray) {\n  if (!richTextArray || !Array.isArray(richTextArray)) return \"\";\n  return richTextArray.map(rt => rt.plain_text).join(\"\");\n}\n\n/* Recursively convert a list of notion blocks into a Markdown string */\nfunction convertNotionBlocksToMarkdown(blocks, indentLevel = 0) {\n  const indent = \" \".repeat(indentLevel); // two spaces per indent level\n  let md = \"\";\n  blocks.forEach(block => {\n    let text = \"\";\n    switch (block.type) {\n      case \"paragraph\":\n        text = block.paragraph?.rich_text ? parseRichText(block.paragraph.rich_text) : block.content;\n        break;\n      case \"heading_1\":\n        text = \"# \" + (block.heading_1?.rich_text ? parseRichText(block.heading_1.rich_text) : block.content);\n        break;\n      case \"heading_2\":\n        text = \"## \" + (block.heading_2?.rich_text ? parseRichText(block.heading_2.rich_text) : block.content);\n        break;\n      case \"heading_3\":\n        text = \"### \" + (block.heading_3?.rich_text ? parseRichText(block.heading_3.rich_text) : block.content);\n        break;\n      case \"bulleted_list_item\":\n        text = \"- \" + (block.bulleted_list_item?.rich_text ? parseRichText(block.bulleted_list_item.rich_text) : block.content);\n        break;\n      case \"numbered_list_item\":\n        text = \"1. \" + (block.numbered_list_item?.rich_text ? parseRichText(block.numbered_list_item.rich_text) : block.content);\n        break;\n      case \"to_do\":\n        text = \"- [\" + (block.to_do?.checked ? \"x\" : \" \") + \"] \" + (block.to_do?.rich_text ? parseRichText(block.to_do.rich_text) : block.content);\n        break;\n      case \"quote\":\n        text = \"> \" + (block.quote?.rich_text ? parseRichText(block.quote.rich_text) : block.content);\n        break;\n      case \"code\": {\n        const codeLang = block.code?.language || \"\";\n        const codeText = block.code?.rich_text ? parseRichText(block.code.rich_text) : block.content;\n        text = \"```\" + codeLang + \"\\n\" + codeText + \"\\n```\";\n        break;\n      }\n      case \"divider\":\n        text = \"---\";\n        break;\n      case \"callout\": {\n        const icon = block.callout?.icon?.emoji ? `${block.callout.icon.emoji} ` : \"\";\n        text = \"> \" + icon + (block.callout?.rich_text ? parseRichText(block.callout.rich_text) : block.content);\n        break;\n      }\n      case \"image\": {\n        const image = block.image;\n        const url = image?.type === \"external\" ? image.external?.url : image.file?.url;\n        const caption = image?.caption ? parseRichText(image.caption) : \"\";\n        text = url ? `![${caption}](${url})` : \"\";\n        break;\n      }\n      default:\n        text = block[block.type]?.rich_text ? parseRichText(block[block.type].rich_text) : block.content;\n    }\n    if (text !== \"\") {\n      md += indent + text + \"\\n\\n\";\n    }\n    if (block.has_children && Array.isArray(block.children) && block.children.length > 0) {\n      md += convertNotionBlocksToMarkdown(block.children, indentLevel + 1);\n    }\n  });\n  return md.trim();\n}\n\nfor (const item of $input.all()) {\n  item.json.markdown = convertNotionBlocksToMarkdown([item.json]);\n}\n\nreturn $input.all();"
      },
      "type": "n8n-nodes-base.code",
      "typeVersion": 2,
      "position": [
        440,
        0
      ],
      "id": "e1677627-356c-4051-bf56-802fd45c62bd",
      "name": "Code"
    },
    {
      "parameters": {
        "fieldsToAggregate": {
          "fieldToAggregate": [
            {
              "fieldToAggregate": "markdown"
            }
          ]
        },
        "options": {}
      },
      "type": "n8n-nodes-base.aggregate",
      "typeVersion": 1,
      "position": [
        660,
        0
      ],
      "id": "4231c3ca-381f-4429-b602-6e7fd42f2efd",
      "name": "Aggregate"
    },
    {
      "parameters": {
        "assignments": {
          "assignments": [
            {
              "id": "335dc705-e651-43c1-b34d-2e47f899c387",
              "name": "content",
              "value": "={{ $json.markdown.join('\\n\\n') }}",
              "type": "string"
            }
          ]
        },
        "options": {}
      },
      "type": "n8n-nodes-base.set",
      "typeVersion": 3.4,
      "position": [
        880,
        0
      ],
      "id": "1cd8b8ad-d6d3-4d38-97c4-8f6757c02b0c",
      "name": "Edit Fields"
    }
  ],
  "pinData": {
    "When Executed by Another Workflow": [
      {
        "json": {
          "id": "1a2272d8-2348-8021-87fa-f6b0536b138d"
        }
      }
    ]
  },
  "connections": {
    "When Executed by Another Workflow": {
      "main": [
        [
          {
            "node": "Notion",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Notion": {
      "main": [
        [
          {
            "node": "Code",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Code": {
      "main": [
        [
          {
            "node": "Aggregate",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Aggregate": {
      "main": [
        [
          {
            "node": "Edit Fields",
            "type": "main",
            "index": 0
          }
        ]
      ]
    }
  },
  "active": false,
  "settings": {
    "executionOrder": "v1"
  },
  "versionId": "4abfee5f-c08a-4c15-a9e9-b8a0fe84b2cf",
  "meta": {
    "templateCredsSetupCompleted": true,
    "instanceId": "264d698b5e64261284d507dd7b12172313952935a60b637601e363e5fd657924"
  },
  "id": "bLipx1fs4ZCzjBKg",
  "tags": [
    {
      "createdAt": "2024-09-23T20:07:28.009Z",
      "updatedAt": "2024-09-23T20:07:28.009Z",
      "id": "7uLdfBNMEKOs8GIy",
      "name": "Chandler"
    },
    {
      "name": "Notion",
      "id": "trTFWJS3aCaKvWyG",
      "createdAt": "2025-02-22T01:33:50.022Z",
      "updatedAt": "2025-02-22T01:33:50.022Z"
    },
    {
      "name": "Utilities",
      "id": "vrfgmsvbsUWYgNx9",
      "createdAt": "2025-02-22T01:33:54.259Z",
      "updatedAt": "2025-02-22T01:33:54.259Z"
    }
  ]
}