Build and deploy a REST API with Deno
In this course, we will learn how to create and deploy a REST API with Deno from scratch.
What You Will Learn
How to create an application in Deno
Integrating databases into your application
Importance of database migrations in production applications
Deploying Deno applications to production using CICD
Dockerized Deno applications
Developing using TypeScript
In this course, we will learn how to work with Deno to create a REST API using TypeScript with the web framework Oak and the migration tool Nessie. Deno is a JavaScript runtime created by Ryan Dahl, the same creator for Node, as an attempt to simplify the JavaScript landscape by strictly following the WebAPI specs. If you are interested in learning more about the motivation behind Deno, you can watch this video where Ryan Dahl explains "10 Things I Regret About Node.js"
We will explore how to create an application using the powers of TypeScript, and learn how to traverse the Deno ecosystem which is much like the native web ecosystem. There are 5 modules that will take you from installing Deno and running your first lines of code, to working with web frameworks and databases, and in the end, deploying your application to a web server using a deployment pipeline.
Throughout this course, you will experience all the different aspects of Deno which you will need to create your own application in the future. And from this course, you will get a good feeling for if Deno is ready to be your next default for new projects.
Course Content
Introduction
Welcome to Build and Deploy a REST API with Deno!
Introduction to the newline guide to building and deploying a REST API using Deno.
INTRODUCTION
Setting up our environment
In this lesson, we will install Deno and create our setup for the rest of the course.
PROLOGUE
Getting Started with Deno
Deno Introduction
Introducing Deno and its history
INTRODUCTION
Deno REPL
We will look at the command line interface for running Deno
LESSON
Using Deno
In this lesson, we will look at general usage of Deno by running a file and also introduce the config file
LESSON
Deno Standard Library
Learn how to use the Deno standard library and other external modules with URL imports
LESSON
Deno Server
We will build our first server in Deno
LESSON
Token Authentication
You will learn how to make a simple token authentication in Deno
LESSON
Connect to a database
Using databases with Deno
Introducing Deno databases
INTRODUCTION
PostgreSQL
Using the PostgreSQL client for Deno
LESSON
MySQL
Using the MySQL client for Deno
LESSON
SQLite
Using the SQLite client for Deno
LESSON
Database migrations
Database Migrations
Introduction to database migrations - what, why and how
INTRODUCTION
Getting started with Nessie
Get started with database migrations using Nessie
LESSON
Create Migration
We will go through creating a migration using the Nessie CLI
LESSON
Edit Migration
We will look at how to write a migration script where we create a table
LESSON
Run Migration
We will run our migration and learn how to roll back the migration
LESSON
Create Seed
We will create a seed file using the Nessie CLI
LESSON
Seed Database
We will run our seed file and populate our database
LESSON
REST API
REST API Introduction
Introduction to the concept of REST APIs and why we use them
INTRODUCTION
Planning
We will go through the thought process of planning an application.
LESSON
Deno REST API Setup
We will create the initial project files and set up our environment
LESSON
REST API Endpoints
We will create the router and look at how to test our endpoints
LESSON
Databases and Nessie migrations
It's time to add Nessie! We will now initialize Nessie in our project and also spin up our development database
LESSON
DB Pool
Time to connect our models to our database!
LESSON
Duck Model
In this step, we will create our first data model and create a corresponding table using a migration
LESSON
Duck Service
Creating the methods to access the database
LESSON
Duck Controller
Creating the server endpoints for the Duck namespace
LESSON
Authentication and Authorization
We will look at how to set up authentication and further authorize the requests
LESSON
Quack & Crumb Model
We will create two new tables using a migration and create the equivalent models
LESSON
Quack Service & Controller
We will create our Quack service and controller
LESSON
Crumbs
The last stretch! We will create our final namespace, Crumb, and connect it to our other models and our router
LESSON
API Afterthoughts
Now that our application is completed, we will consider some improvements and discuss alternative approaches.
CONCLUSION
Deployment
Deployment Introduction
We will introduce deployments and what we will learn in this module
INTRODUCTION
Docker Image Creation
We will create a Docker image for our application
LESSON
Continuous Integration
You will learn how to create a basic CI file for GitHub and GitLab, and run tests on them
LESSON
Deploy with SSH and Git
We will deploy our application to a server using CI, SSH and git.
LESSON
Deploy with Digital Ocean Apps
We will deploy our application to Digital Ocean Apps. This is by far the easiest (but most costly) approach.
LESSON
Deploy with Docker
Similar to how we did it in lesson 1, we will be deploying using CI and SSH, but instead of git, we will be using Docker.
LESSON
Your Instructors
Halvard
Frequently Asked Questions
Who is this course for?
This course is for any skill level, from junior to senior, who wants to learn more about Deno and how to utilize it in production.
What are the prerequisites?
Basic knowledge about JavaScript (TypeScript), SQL and Git is assumed.
What is expected of me?
The interest in learning about Deno and how to make an application using it!
What if I need help?
You can ask us questions anytime through the community Discord channel or by sending us a message.
