更新：接口

web-server/app/controller/update.ts

@@ -0,0 +1,10 @@
+import { Controller } from 'egg';
+
+export default class UpdateController extends Controller {
+  public async getversion() {
+    const { ctx } = this;
+    const { version } = ctx.request.body;
+    ctx.body = await ctx.service.update.getVersion(version);
+  }
+
+}