First things first, figure out your main (parent) resource and the related (nested) ones. Think of it like a Blog with its Comments.

Next up, create separate data models for each resource. So, for our example, you'll need a Blog table and a Comment table in Xano's database setup.

Now, link the nested resource to the parent resource. This means adding a foreign key in the nested resource table. In the Comment table, add a field that references the Blog table.

Time to create API endpoints for both the parent and nested resources. For instance:

• GET /blogs - This gets you all the blogs.
• GET /blogs/{id}/comments - This fetches all comments for a specific blog.

In the GET /blogs/{id}/comments endpoint, write the query to fetch all comments tied to a specific blog ID. Use Xano's query builder to join Comment with Blog based on that foreign key.

Make sure the API response serializes the nested resources correctly. This usually means including the related comments within the blog object in the response payload, if needed.

Test the endpoints using tools like Postman or Xano's built-in API tester. Ensure the nested resources are being fetched and displayed correctly according to the relationships defined.

Think about adding pagination and filtering on the nested resources for better performance and usability. Modify the query in the GET /blogs/{id}/comments endpoint to include these features.

Create POST, PUT, and DELETE endpoints for the nested resources as needed. Make sure to handle the foreign key relationships properly when updating or deleting nested records.

Finally, document the endpoints and their payloads clearly in Xano's API documentation section. Include examples of request/response for handling nested resources.