Create a Web API that supports CRUD (add-and-scan) operations

One: the preparatory work

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Crud refers to "create (C), read (R), update (U), and delete (D)", which are four basic database operations. Many HTTP services also emulate CRUD operations through rest or class rest APIs.

In this tutorial, we will build a very simple Web API to manage a list of products.

Each product contains a name, price, and category (for example, "Toys", "Hardware (Hardware)"), and a product ID.

Action Action	HTTP method http method	Relative URI Relative URI
Get a list of all products Get a full list of products	GET	/api/products
Get a product by ID Get a product by ID	GET	/api/products/id
Get a product by category Get Products by Category	GET	/api/products?category=category
Create a new product Create a new product	POST	/api/products
Update a product Update a product	PUT	/api/products/id
Delete a product Delete a product	DELETE	/api/products/id

 

Create a Web API that supports CRUD (add-and-scan) operations