Displaying Associated Data Lab

Learning Goals

Use Active Model associations in the controller
Render nested JSON data based on model associations

Introduction

In this lab, we'll be creating an API for a Craigslist-style marketplace where a user can sell items. We have two models, User and Item, in a relationship where a user has many items, and each item belongs to a user.

User -< Item

Get the lab set up by running:

$ bundle install
$ rails db:migrate db:seed

There is seed data in place so you can test your solution out in the browser or in Postman. You can also run learn test to run the tests.

Deliverables

Handle the following requests and return the appropriate JSON data in the response:

Users Show Route

GET /users/:id

Response Body
-------
{
  "id": 1,
  "username": "Dwayne",
  "city": "Los Angeles",
  "items": [
    {
      "id": 1,
      "name": "Non-stick pan",
      "description": "Sticks a bit",
      "price": 10
    }
  ]
}

Items Index Route

GET /items

Response Body
-------
{
  "id": 1,
  "name": "Non-stick pan",
  "description": "Sticks a bit",
  "price": 10,
  "user": {
    "id": 1,
    "username": "Dwayne",
    "city": "Los Angeles"
  }
}

Resources

Serialization: as_json

kadimasum / phase-4-displaying-associated-data-lab