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Day 93 : #100DaysofCode - Learning About Rails Backend

Today was a hard day, I found out some heartbreaking stuff and I am really saddened by it, but they say he gives his toughest tasks to his strongest soldiers. I have to keep going.

I struggled with coding and felt overwhelmed by Javascript today, but luckily I have amazing friends who reminded me that I can do anything. So, I still attempted to create an app with a ruby on rails backend while watching a code along.

Below is the repo, I wrote the steps I took in the


#Step By Step Build

#Setting Up The Rails API

  1. Create a folder mkdir todo-js-ruby
  2. cd into mkdir todo-js-ruby
  3. Create a new rails app -- ``rails new -api --database-postgresql
  4. cd into the new-app-name


  1. Uncomment out gem 'rack-cors'
  2. Run bundle
  3. Go to your config/initializers/cors.rb file.

Uncomment/add the following code:

Rails.application.config.middleware.insert_before 0, Rack::Cors do
  allow do
    origins '*'

    resource '*',
      headers: :any,
      methods: [:get, :post, :put, :patch, :delete, :options, :head]

#Create a controller:

  1. rails g controller notes
  2. Create a version folder. app/controllers/api/v1
  3. Add controller into version folder --> app/controllers/api/v1/notes_controller.rb
  4. Namespace the controller:
class Api::V1::NotesController < ApplicationController
  1. Add data into your controller -- rememeber to render json
class Api::V1::NotesController < ApplicationController
    def index
        @notes = Note.all
        render json: @notes, status: 200
    def show 
        @note = Note.find(params[:id])
        render json: @note, status: 200

    def create
        @note = Note.create(note_params)
        render json: @note, status: 200

    def update
        @note = Note.find(params[:id])

I did not get to finish the code along but I did learn a lot. Feel free to use the step by step guide I provided in the readme.

Thanks for reading!


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