HTTP API Functions

GET

• Purpose: Retrieve data from the server.
• Usage: Fetch resources like HTML pages, JSON data, images, etc.
• Example Use Case: A client requests user data from a server, and the server responds with the user information in JSON format.

POST

• Purpose: Send data to the server to create a new resource.
• Usage: Submit form data, upload files, etc.
• Example Use Case: A client submits a registration form with user details, and the server creates a new user in the database.

PUT

• Purpose: Update existing resources on the server.
• Usage: Update a user profile, modify product details, etc.
• Example Use Case: A client sends updated user information, and the server updates the corresponding user record in the database.

DELETE

• Purpose: Remove resources from the server.
• Usage: Delete a user account, remove a blog post, etc.
• Example Use Case: A client sends a request to delete a user, and the server removes the user from the database.

PATCH

• Purpose: Partially update a resource on the server.
• Usage: Modify specific fields in a record.
• Example Use Case: A client updates only the email address of a user, and the server modifies the email field of the corresponding user record.

Node.js, known for its asynchronous and event-driven architecture, is a popular choice for building scalable server-side applications. One of its primary uses is to create and manage APIs (Application Programming Interfaces). APIs allow different software systems to communicate and share data with each other. In Node.js, API functions can be categorized based on their nature, usage, and the type of data they handle. This article explores various types of API functions in Node.js, providing insights into their functionalities and use cases.