notion-markdown.js

import { markdownToBlocks } from '@tryfabric/martian';
import { NotionToMarkdown } from 'notion-to-md';

@Controller('/api/tools')
export class ToolsController {
    @Post('/markdown-notion')
    async convert(@Body() body) {
        return markdownToBlocks(body.markdown);
    }

    @Post('/notion-markdown')
    async convertBlocksToMarkdown(
        @Req() request,
        @Body() body,
    ) {
        const auth = request.headers.authorization;
        const notionClient = new Client({auth});
        const n2m = new NotionToMarkdown({notionClient});
        const mdblocks = await n2m.pageToMarkdown(body.pageId);
        const mdString = n2m.toMarkdownString(mdblocks);
        return {
            markdown: mdString,
        };
    }
}