Heads up! To view this whole video, sign in with your Courses account or enroll in your free 7-day trial. Sign In Enroll
Preview
Start a free Courses trial
to watch this video
You will use the Sequelize ORM and Express to build a simple CRUD application that's connected to a SQL database. You will use Sequelize methods to perform CRUD operations within Express routes (using HTTP methods like get and post) to manage the data in the database.
[MUSIC]
0:00
Hi everyone, Gil here,
a JavaScript instructor at Treehouse.
0:09
In previous lessons, you learned
how to use the Sequelize ORM to
0:12
interface with sequel based databases
within a Node JS application.
0:15
You also learned how to work with
the Express Web application framework for
0:20
Node to build dynamic web applications.
0:24
In this workshop,
0:26
you will bring together much of what
you've learned about Sequelize and
0:27
Express to build a simple CRUD application
that is connected to a Sequel database.
0:30
You will use the method Sequalize provides
to perform CRUD operations within Express
0:35
routes using HTTP methods like Get and
Post to manage the data and the database.
0:38
In addition, you'll work with
the sequelize/cli a helpful command line
0:43
interface for sequelize to initialize
all the configuration code,
0:47
folders and helpers needed for
the application.
0:51
The project you will build and this
workshop is a simple blog application,
0:53
it's going to have a page
that lists all the articles,
0:58
a create article page an edit article page
as well as a way to delete an article.
1:02
So we're essentially performing all
the CRUD or create, read, update and
1:07
delete operations using a web interface.
1:10
And you'll be able to apply what you learn
while building this project to just about
1:13
any node or express and sequel
application you create moving forward.
1:16
To get started and code along with me,
download the project files with this video
1:20
and open the starter files in
your favorite text editor.
1:24
I'm using Visual Studio Code.
1:26
Once you open the starter files, run the
command MPM install in your terminal or
1:28
console to install all
the project dependencies.
1:33
After the dependencies
finished downloading and
1:37
installing, run,
MPM start to start the application.
1:39
And you can view the app in
the browser on localhost port 3000.
1:44
So this is the beginning state
of the blog application.
1:47
To get it started,
I used the express application
1:51
generator tool to create the express
app which I then modified.
1:54
The express generator is a command line
tool that makes it easy to start new apps.
1:57
It sets up much of the boolar plain
code needed to build an express
2:02
app like starting a new server instance,
2:05
configuring a view engines,
setting up air handling and more.
2:07
The structure of the generated express
application contains folders such as bin,
2:10
public, routes and views which you will
learn about as you build the application.
2:14
You're can learn more about
the express generator tool and
2:18
its helpful command options in
the teachers notes with this video.
2:21
The focus of this
workshop in on Sequelize,
2:24
so we're going to work on connecting
to a data base from the express app and
2:26
write all the data base calls
within the route handler functions.
2:30
I've already included all the view
templates inside the views folder, and
2:33
starter code to handle the routes
inside the routes folder.
2:37
For example, the app uses the pug
2:41
templating engine to
generate all the views.
2:44
And the articles.js file inside the routes
folder, holds all the routes to create,
2:47
read, update and
delete articles in the app.
2:52
Both the index and
articles routes are imported into app.js,
2:54
then passed to the Express app
via these app.use methods.
3:00
We'll add more inside the route handlers
as we implement the database code.
3:03
Before moving on to the next step,
go ahead and
3:08
familiarize yourself with the routes and
views.
3:10
Once you're ready,
you'll start by setting up and
3:13
connecting to a sequel lite database.
3:15
To be successful in this workshop that
you should be familiar with using
3:17
the Sequelize ORM as well as
the Express framework and
3:20
the async await syntax for
working with promises.
3:25
So be sure to review the teachers notes
with this video if you need a refresher on
3:28
any of these topics.
3:31
You need to sign up for Treehouse in order to download course files.
Sign up