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Laravel 9: guide with Eloquent Lazy Loading Causing N+1 Query solution in API Response

πŸ‘€ Views: 2 πŸ’¬ Answers: 1 πŸ“… Created: 2025-06-11
laravel eloquent api performance php

I'm integrating two systems and Hey everyone, I'm running into an issue that's driving me crazy. I'm working with an N+1 query question in my Laravel 9 application when trying to return a JSON response for a list of posts along with their related comments. I have set up my models correctly with the necessary relationships, yet I'm still seeing multiple queries being executed. Here’s the relevant part of my code: ```php // Post model public function comments() { return $this->hasMany(Comment::class); } // In my PostsController public function index() { $posts = Post::all(); // This triggers N+1 question return response()->json($posts); } ``` I've tried using eager loading to optimize the query like this: ```php $posts = Post::with('comments')->get(); ``` However, when I check the SQL logs, it still runs multiple queries for fetching comments after fetching posts. The SQL log shows: ``` select * from posts; select * from comments where post_id in (1, 2, 3, ...); ``` It seems the eager loading isn't working correctly for some reason. I've also checked if my relationships are properly defined and they seem fine. I’m using MySQL as the database, and I have verified that Eloquent version is compatible with Laravel 9. Is there something I'm missing or misconfigured that would prevent eager loading from functioning as expected? I recently upgraded to Php 3.10. For reference, this is a production desktop app. Thanks for your help in advance!