adding missing code in a snippet (#288)

Author: devkiloton

database-next/read-and-write.js

@@ -74,9 +74,9 @@ function socialSingleValueRead() {
 }
 
 function writeNewPost_wrapped() {
+  // [START rtdb_social_write_fan_out]
   const { getDatabase, ref, child, push, update } = require("firebase/database");
 
-  // [START rtdb_social_write_fan_out]
   function writeNewPost(uid, username, picture, title, body) {
     const db = getDatabase();
 

snippets/database-next/read-and-write/rtdb_social_write_fan_out.js

@@ -5,6 +5,8 @@
 // 'npm run snippets'.
 
 // [START rtdb_social_write_fan_out_modular]
+import { getDatabase, ref, child, push, update } from "firebase/database";
+
 function writeNewPost(uid, username, picture, title, body) {
   const db = getDatabase();