fix build for now

packages/html/src/example.js

@@ -0,0 +1,24 @@
+import { generateHTML } from '@tiptap/html'
+
+import Document from '@tiptap/extension-document'
+import Paragraph from '@tiptap/extension-paragraph'
+import Text from '@tiptap/extension-text'
+
+// eslint-disable-next-line
+const html = generateHTML({
+  type: 'document',
+  content: [{
+    type: 'paragraph',
+    attrs: {
+      align: 'left',
+    },
+    content: [{
+      type: 'text',
+      text: 'Example Text',
+    }],
+  }],
+}, [
+  new Document(),
+  new Paragraph(),
+  new Text(),
+])

packages/html/src/getHTMLFromFragment.ts

@@ -0,0 +1,13 @@
+import { Node, DOMSerializer, Schema } from 'prosemirror-model'
+// @ts-ignore
+import { createHTMLDocument } from 'hostic-dom'
+
+export default function getHTMLFromFragment(doc: Node, schema: Schema): string {
+  return DOMSerializer
+    .fromSchema(schema)
+    .serializeFragment(doc.content, {
+      document: createHTMLDocument(),
+    })
+    // @ts-ignore
+    .render()
+}

packages/html/src/index.ts

@@ -0,0 +1,10 @@
+import { Extensions, getSchema } from '@tiptap/core'
+import { Node } from 'prosemirror-model'
+import getHTMLFromFragment from './getHTMLFromFragment'
+
+export function generateHTML(doc: object, extensions: Extensions): string {
+  const schema = getSchema(extensions)
+  const contentNode = Node.fromJSON(schema, doc)
+
+  return getHTMLFromFragment(contentNode, schema)
+}