How to Handle JSON API Response with Nested Attributes in Ruby on Rails 7.1?
I'm performance testing and I'm stuck on something that should probably be simple. I'm working on a Rails 7.1 application where I'm consuming a JSON API that returns data with nested attributes. The response looks something like this: ```json { "user": { "id": 1, "name": "John Doe", "posts": [ { "id": 10, "title": "First Post", "comments": [ {"id": 1, "body": "Great post!"}, {"id": 2, "body": "Thanks for sharing!"} ] } ] } } ``` I want to parse this JSON response into my Rails models effectively. I have a `User`, `Post`, and `Comment` model set up. However, when I try to create the records using the following code: ```ruby response = JSON.parse(api_response) user_data = response['user'] user = User.create(user_data.except('posts')) user_data['posts'].each do |post_data| post = user.posts.create(post_data.except('comments')) post_data['comments'].each do |comment_data| post.comments.create(comment_data) end end ``` I run into an scenario where the `comments` are not being associated with the `posts` correctly. I get the following behavior in the logs: ``` ActiveRecord::RecordInvalid: Validation failed: Post must exist ``` It seems like the `post` is not being saved before I try to create the `comments`. I've tried adding `post.save!` right after creating the post, but it still doesn’t resolve the scenario. I also considered using `build` instead of `create`, but I’m unsure if that would help in this scenario. How can I ensure that the `comments` are correctly associated with the corresponding `posts` when creating them from the nested attributes in the JSON response? Any best practices or recommendations would be greatly appreciated! I'm working on a web app that needs to handle this. This is for a mobile app running on Windows 11. Any feedback is welcome!