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@instantish/martian

Converts Markdown to Notion Blocks and RichText

1.1.1
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Martian: Markdown to Notion Parser

NOTE: Please use the new NPM package at @tryfabric/martian.

Convert Markdown and GitHub Flavoured Markdown to Notion API Blocks and RichText.

Node.js CI Code Style: Google

Martian is a Markdown parser to convert any Markdown content to Notion API block or RichText objects. It uses unified to create a Markdown AST, then converts the AST into Notion objects.

Designed to make using the Notion SDK and API easier. Notion API version 0.4.5.

Supported Markdown Elements

  • All inline elements (italics, bold, strikethrough, inline code, hyperlinks)
  • Lists (ordered, unordered, checkboxes) - to any level of depth
  • All headers (header levels >= 3 are treated as header level 3)
  • Code blocks
  • Block quotes
  • Images (where the image is the first element in the paragraph and it has a valid full URL)

Unsupported Markdown Elements

tables: Tables can be imported in an unsupported mode if you add a flag to the parser.

First, the default mode - it ignores the tables:

const allowUnsupportedObjectType = false;
const blocks: Block[] = markdownToBlocks(`
# Table

| First Header  | Second Header |
| ------------- | ------------- |
| Content Cell  | Content Cell  |
| Content Cell  | Content Cell  |
`, allowUnsupportedObjectType);

// [
//   {
//     "object": "block",
//     "type": "heading_1",
//     "heading_1": {
//       "text": [
//         {
//           "type": "text",
//           "annotations": {
//             "bold": false,
//             "strikethrough": false,
//             "underline": false,
//             "italic": false,
//             "code": false,
//             "color": "default"
//           },
//           "text": {
//             "content": "Table"
//           }
//         }
//       ]
//     }
//   }
// ]

Next, with unsupported flag = true (note the annotations have been removed from the returned object to make it easier to see what is going on):

const allowUnsupportedObjectType = true;
const blocks: Block[] = markdownToBlocks(`
# Table

| First Header  | Second Header |
| ------------- | ------------- |
| Content Cell  | Content Cell  |
| Content Cell  | Content Cell  |
`, allowUnsupportedObjectType)

 [
//   {
//     "object": "block",
//     "type": "heading_1",
//     "heading_1": {
//       "text": [
//         {
//           "type": "text",
//           "text": {
//             "content": "Table"
//           }
//         }
//       ]
//     }
//   },
//   {
//     "object": "unsupported",
//     "type": "table",
//     "table": {
//       "children": [
//         {
//           "object": "unsupported",
//           "type": "table_row",
//           "table_row": {
//             "children": [
//               {
//                 "object": "unsupported",
//                 "type": "table_cell",
//                 "table_cell": {
//                   "children": [
//                     {
//                       "type": "text",
//                       "text": {
//                         "content": "First Header"
//                       }
//                     }
//                   ]
//                 }
//               },
//               {
//                 "object": "unsupported",
//                 "type": "table_cell",
//                 "table_cell": {
//                   "children": [
//                     {
//                       "type": "text",
//                       "text": {
//                         "content": "Second Header"
//                       }
//                     }
//                   ]
//                 }
//               }
//             ]
//           }
//         },
//         {
//           "object": "unsupported",
//           "type": "table_row",
//           "table_row": {
//             "children": [
//               {
//                 "object": "unsupported",
//                 "type": "table_cell",
//                 "table_cell": {
//                   "children": [
//                     {
//                       "type": "text",
//                       "text": {
//                         "content": "Content Cell"
//                       }
//                     }
//                   ]
//                 }
//               },
//               {
//                 "object": "unsupported",
//                 "type": "table_cell",
//                 "table_cell": {
//                   "children": [
//                     {
//                       "type": "text",
//                       "text": {
//                         "content": "Content Cell"
//                       }
//                     }
//                   ]
//                 }
//               }
//             ]
//           }
//         },
//         {
//           "object": "unsupported",
//           "type": "table_row",
//           "table_row": {
//             "children": [
//               {
//                 "object": "unsupported",
//                 "type": "table_cell",
//                 "table_cell": {
//                   "children": [
//                     {
//                       "type": "text",
//                       "text": {
//                         "content": "Content Cell"
//                       }
//                     }
//                   ]
//                 }
//               },
//               {
//                 "object": "unsupported",
//                 "type": "table_cell",
//                 "table_cell": {
//                   "children": [
//                     {
//                       "type": "text",
//                       "text": {
//                         "content": "Content Cell"
//                       }
//                     }
//                   ]
//                 }
//               }
//             ]
//           }
//         }
//       ]
//     }
//   }
// ]

Note that if you send this document to Notion with the current version of the API it will fail, but this allows you to pre-parse the blocks in your client library, and do something with the tables. In one example, the tables are being parsed out of the blocks, databases being created, that are then linked back to the imported page: https://github.com/infinitaslearning/notionater/blob/main/index.js#L81-L203

Usage

import {markdownToBlocks, markdownToRichText} from '@instantish/martian';
import type {RichText, Block} from '@notionhq/client/build/src/api-types';

const richText: RichText[] = markdownToRichText(`**Hello _world_**`);

// [
//   {
//     "type": "text",
//     "annotations": {
//       "bold": true,
//     },
//     "text": {
//       "content": "Hello "
//     }
//   },
//   {
//     "type": "text",
//     "annotations": {
//       "bold": true,
//       "italic": true,
//     },
//     "text": {
//       "content": "world"
//     }
//   }
// ]


const blocks: Block[] = markdownToBlocks(`
## this is a _heading 2_

* [x] todo list item
`)

// [
//   {
//     "object": "block",
//     "type": "heading_2",
//     "heading_2": {
//       "text": [
//         ...
//         {
//           "type": "text",
//           "annotations": {
//             "italic": true
//           }
//           "text": {
//             "content": "heading 2"
//           }
//         },
//       ]
//     }
//   },
//   {
//     "object": "block",
//     "type": "to_do",
//     "to_do": {
//       "text": [
//         {
//           "type": "text",
//           "annotations": {
//           },
//           "text": {
//             "content": "todo list item"
//           }
//         }
//       ],
//       "checked": true
//     }
//   }
// ]

Built with 💙 by the team behind Fabric.

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Package last updated on 10 Dec 2021

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U.S. Patent No. 12,346,443 & 12,314,394. Other pending.