Internet retail, also known as e-commerce, is the largest sector of the electronics industry, generating an estimated $29 trillion in 2019. E-commerce platforms like Shopify and WooCommerce provide a suite of services to businesses of all sizes. Due to their prevalence, understanding the fundamental architecture of these platforms will benefit a full-stack web developer.
As a manager at an internet retail company I want a back end for my e-commerce website that uses the latest technologies so that my company can compete with other e-commerce companies
Build the back end for an e-commerce site by modifying starter code. You’ll configure a working Express.js API to use Sequelize to interact with a MySQL database.
The appropriate packages consists of
- npm i
- npm init
- npm install mysql2
- npm install doetenv
- npm install express
"dependencies": {
"dotenv": "^8.2.0",
"express": "^4.17.1",
"mysql2": "^2.2.5",
"sequelize": "^5.22.4"
}
database should contain the following four models, including the requirements listed for each model:
-
Category-
id-
Integer.
-
Doesn't allow null values.
-
Set as primary key.
-
Uses auto increment.
-
-
category_name-
String.
-
Doesn't allow null values.
-
-
-
Product-
id-
Integer.
-
Doesn't allow null values.
-
Set as primary key.
-
Uses auto increment.
-
-
product_name-
String.
-
Doesn't allow null values.
-
-
price-
Decimal.
-
Doesn't allow null values.
-
Validates that the value is a decimal.
-
-
stock-
Integer.
-
Doesn't allow null values.
-
Set a default value of
10. -
Validates that the value is numeric.
-
-
category_id-
Integer.
-
References the
Categorymodel'sid.
-
-
-
Tag-
id-
Integer.
-
Doesn't allow null values.
-
Set as primary key.
-
Uses auto increment.
-
-
tag_name- String.
-
-
ProductTag-
id-
Integer.
-
Doesn't allow null values.
-
Set as primary key.
-
Uses auto increment.
-
-
product_id-
Integer.
-
References the
Productmodel'sid.
-
-
tag_id-
Integer.
-
References the
Tagmodel'sid.
-
-
In Product.js initialize Product model (table) by extending off Sequelize's Model class
class Product extends Model {}
In Category.js initialize Category model (table) by extending off Sequelize's Model class
class Category extends Model {}
In ProductTag.js initialize ProductTag. model (table) by extending off Sequelize's Model class
class ProductTag extends Model {}
In Tag.js initialize Tag. model (table) by extending off Sequelize's Model class
class Tag extends Model {}
The seeds directory contains a seed for category, product, product-tag, tag, and index.js.
-- After running the
npm run seeds
command the ecommerce_db in mysql workbench was seeded and verified on mysql workbench.
In the index.js file of models directory the associations were created with these methods belongsTo, hasMany, belongsToMany were used to associate the appropriate tables
Insomnia Walk Through https://youtu.be/xQemFWT0NO8
https://sqlbolt.com/lesson/select_queries_introduction
https://guides.github.com/features/mastering-markdown/
https://sequelize.org/master/manual/model-querying-finders.html
-
A functional Express.js API will add my database name, MySQL username, and MySQL password to an environment variable file.
-
I am able to connect to a database using Sequelize
-
I enter schema and seed commands
-
A development database is created and is seeded with test data
-
I enter the command to invoke the application and my server is started and the Sequelize models are synced to the MySQL database
-
Open API GET routes in Insomnia Core for categories, products, or tags and the data for each of these routes is displayed in a formatted JSON
-
Test API POST, PUT, and DELETE routes in Insomnia Core and successfully create, update, and delete data in my database
Use the CLI to CRUD.
Add a comment prior to contribution
No testing on this app
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Copyright (c) [2021] [Greg Petropoulos]
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