Build a Crypto Currency Portfolio App With Ruby on Rails

How To Use An API To Get Crypto Currency Data With Ruby On Rails

Created byJohn Elder

Last updated 11/2023

English

What you'll learn

Build Web Apps With Ruby On Rails
Build Your Own Crypto Currency Website
Setup and Use A Cloud Environment
Understand Basic Terminal Commands
Push Code To Github
Host Web Apps On Heroku
Understand the Bootstrap CSS Framework
Use Databases with Ruby on Rails
Connect To a 3rd Party API
Understand Basic Ruby Loops

Course content

6 sections • 57 lectures • 4h 15m total length

Course Introduction3:11
First Things First: How To Get Support Fast!0:09
Check out my student Facebook Group...
It's a great place to get fast support for this course from me, to interact with other students, to post your projects and code, and to access course announcements and extras...
Join Now!
https://www.facebook.com/groups/codemycom/
Rails Overview1:51
Install Node.js5:03
Install Sublime and Git Bash Terminal4:55
Install Sublime Text as your text editor, or use any editor, then install Get Bash to enable secure connections and manage version control with SSH keys.
Create SSH Key4:16
Install The Heroku Toolbelt4:07
Install Ruby on Rails4:10
Update!0:02
RailsInstaller.org is down, you can find the installer here:
https://web.archive.org/web/20210306035811/http://railsinstaller.org/en
Create Test Project and Handle Errors11:28
Create a test Rails project to verify installation, then troubleshoot bundler and sequel lite gem errors by pinning an older sequel lite version in the Gemfile and running bundle install.
Create New Project and Run Server8:22
Create a new Rails project named crypto, set up the directory and gemfile, install dependencies with bundle install, then run the Rails server to view the welcome page.
Version Control With Git4:25
Github.com6:07

Creating Our First Webpage4:04
Generate a home controller and index view, run the Rails development server, and replace the default page with a hello world app, illustrating MVC and embedded Ruby in views.
Rails Routing2:48
Manually Creating an About Page3:00
Create an about page in your rails app by adding a view in home, configuring a route, and defining an about action in the home controller.
Understanding Application.html.erb2:58
Explore how application.html.erb acts as the shared layout, using yield to inject page content across all views. See how embedded Ruby, css, javascript, and csrf load on every page.
Creating Links3:34
Creating Partials2:44
CSS With Bootstrap5:39
Building a Bootstrap Navbar6:23
Build a mobile-ready bootstrap navbar by adding a container, customizing the brand and links, and removing unused search and dropdown elements, then integrate into your Rails app.

CoinMarketCap API Intro3:24
UPDATE VIDEO: CoinMarketCap API Change1:54
Second Update0:31
Crypto Controller4:56
Crypto Output3:51
Looping Through The Output6:02
Single Coin Lookup Form5:12
Form Error Handling2:39
Apply robust error handling to the crypto form by normalizing input to uppercase, validating empty input, and preparing currency validation with an allowed list before API integration.
Connecting To The API4:40

Intro To User Management With Devise2:59
Installing Devise5:54
Devise Database4:40
Devise Views and Routes4:12
Explore how devise creates routes for users, sessions, and registrations in a Rails app. Learn to sign up, sign in, edit user registrations, and view the resulting flash messages.
Devise Links6:04
Devise View Bootstraping4:01
Devise Panel Views5:23
Build bootstrap-styled devise panel views for a Ruby on Rails crypto portfolio app, wrapping forms with headers and footers and enabling responsive sign up, log in, and profile pages.

Intro To The Portfolio Database3:12
Creating a Crypto Database Table5:52
Portfolio View Pages4:43
Explore scaffold-generated portfolio view pages for a crypto app, linking each crypto to the current user and enabling create, read, update, and delete actions.
Portfolio Links4:23
Rails Associations4:36
Associations Continued4:06
Defining The Correct User5:46
Bootstrapping the Listing Page Table4:29
Bootstraps the listing page table with bootstrap styles like striped and hover, and connects to the coin market cap API to display name, symbol, rank, price, percentage change, and cost.
Connecting To The API4:39
Connect the database to the crypto api by updating the Kryptos controller and index view to look up crypto data and symbols, then render names in a table.
Cleaning Up The List Page4:53
Getting Price and Total Value5:16
Calculating Profit and Loss4:27
Calculating Percentage Change3:22
Implement percentage changes—one hour, 24 hour, and seven day—after current price to enhance trend analysis in the Ruby on Rails crypto portfolio app.
Running Total Profit Loss4:27
Implement a running total of profit and loss in a Ruby on Rails crypto portfolio app, initialize profit_loss to zero, update with plus equals, and display on the index.
Tweaking the Show Page6:47

Requirements

No programming skills or special tools are necessary to take this course
You just need a computer with Internet access and a Web Browser

Description

Ruby on Rails can seem overwhelming at first, but it doesn’t have to be! In this course I’ll walk you through it step by step and you’ll be building your first web app in MINUTES. You’ll be amazed how quick and easy it is to create very professional looking websites, even if you have no programming or web design experience at all.

Watch over my shoulder as I build a cool Crypto Currency Portfolio app step by step right in front of you. You’ll follow along and build your own copy. By the time we’re finished, you’ll have a solid understanding of Ruby on Rails and how to use it to build awesome web apps.

This course is aimed at the absolute beginner, you don't need any coding experience at all!

The course contains 47 videos – and is just over 3 hours long. Watch the videos at your own pace, and post questions along the way if you get stuck. You don’t need any special knowledge or software to take this course, though any experience with HTML or CSS is a plus. You don’t even need to know the Ruby programming language. I’ll walk you through EVERYTHING.

Ruby on Rails is a great web development tool and learning it has never been this easy.

What We'll Build...

We'll build a cool Crypto Currency Portfolio app that let's you look up crypto quotes and price information and save it to a database.

Users can create an account and sign up to your website, log in, add crypto currencies and coins, check current prices and all kinds of other cool things.

We'll style the website using the popular Bootstrap CSS framework (I'll show you how to use it!)

If you're into crypto-currencies like bitcoin, ripple, ethereum, ada, xlm, or any others; this course will be a LOT of fun. But even if you aren't into crypto stuff, this course will still be a lot of fun and you'll learn a lot of core Ruby on Rails things.

-John Elder

Who this course is for:

This course is aimed towards absolute beginners who want to learn Ruby On Rails for Web Development
Anyone wanting to learn to build web apps

Build a Crypto Currency Portfolio App With Ruby on Rails

What you'll learn

Explore related topics

Course content

Installing Ruby On Rails13 lectures • 58min

Building A Basic Rails App8 lectures • 31min

Crypto Currency Data API9 lectures • 33min

Creating a User Management System7 lectures • 33min

Building A Portfolio System15 lectures • 1hr 11min

Professional Web Hosting For Rails Apps5 lectures • 29min

Requirements

Description

Who this course is for: