chore: export g6 getExtension, getExtensions and register from ssr

packages/g6-ssr/README.md

@@ -62,6 +62,31 @@ When render in CLI, you can pass `-t` or `--type` option to export SVG or PDF.
 npx g6-ssr export -i [graph-options].json -o ./file -t pdf
 ```
 
+### Register Custom G6 Extensions
+
+If you need to register custom extensions of G6, please use the `registry` function exported from `@antv/g6-ssr`.
+
+```js
+import { createGraph, registry } from '@antv/g6-ssr';
+import { BaseNode, ExtensionCategory } from '@antv/g6';
+
+class CustomNode extends BaseNode {
+  // custom node
+}
+
+registry(ExtensionCategory.Node, 'custom-node', CustomNode);
+
+const graph = await createGraph({
+  width: 500,
+  height: 500,
+  node: {
+    type: 'custom-node',
+    // other options
+  },
+  // other options
+});
+```
+
 ## License
 
 MIT

packages/g6-ssr/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@antv/g6-ssr",
-  "version": "0.0.7",
+  "version": "0.0.8",
   "description": "Support SSR for G6",
   "keywords": [
     "antv",

packages/g6-ssr/src/index.ts

@@ -1,3 +1,4 @@
+export { getExtension, getExtensions, register } from '@antv/g6';
 export { createCanvas } from './canvas';
 export { createGraph } from './graph';
 export type { Graph, MetaData, Options } from './types';