What is CRUD?
CRUD refers to the four basic operations a software application should be able to perform – Create, Read, Update, and Delete.
In such apps, users must be able to create data, have access to the data in the UI by reading the data, update or edit the data, and delete the data.
In full-fledged applications, CRUD apps consist of 3 parts: an API (or server), a database, and a user interface (UI).
The API contains the code and methods, the database stores and helps the user retrieve the information, while the user interface helps users interact with the app.
You can make a CRUD app with any of the programming languages out there. And the app doesn’t have to be full stack – you can make a CRUD app with client-side JavaScript.
In fact, the app with which I will be showing you how create, read, update and delete operations work is made with client-side JavaScript.
Each letter in the CRUD acronym has a corresponding HTTP request method.
| CRUD Operation | HTTP Request Method |
|---|---|
| Create | POST |
| Read | GET |
| Update | PUT or PATCH |
| Delete | DELETE |
Here a list “Products” is added to a form in power apps in one screen to edit or display items after certain operations.
Add a button to the form for submission of data to the app. After adding the data reset action will perform and navigate to screen 2.
Select the second screen and add a blank gallery on which we are adding different labels to display the records .
Add icons
1.create icon
2.view icon or Read icon
3.Edit icon or update icon
4.Delete icon
What is the CREATE Operation and How Does it Work?
In CRUD, the create operation does what the name implies. It means creating an entry. This entry could be an account, user information, a post, or a task.
In this article, I will show you what CRUD means, and what the individual terms mean and do. I will also show you how create, read, update, and delete operations work in the real world.
Here add the create action to the “+” icon to Add an item by navigating to the 1st screen.
What is the READ Operation and How Does it Work?
The READ operation means getting access to the inputs or entries in the UI. That is, seeing it. Again, the entry could be anything from user information to social media posts, and others.
This access could mean the user getting access to the created entries right after creating them, or searching for them. Searching is implemented to allow the user to filter out the entries they don’t need.
The HTTP protocol that implements a READ operation is the GET method.
What is the UPDATE Operation and How Does it Work?
UPDATE is the operation that allows you to modify existing data. That is, editing the data.
Unlike READ, the UPDATE operation alters the existing data by making changes to it.
PUT and PATCH are the HTTP protocols with which you can implement an UPDATE operation, depending on what you need.
PUT should be used when you want the entire entry updated, and PATCH if you don’t want the entire entry to be modified.
What is the DELETE Operation and How Does it Work?
To delete is to get rid of an entry from the UI and the database.
DELETE is the HTTP protocol for implementing a DELETE operation.
