Database API Functions

Query

• Purpose: Retrieve data from a database.
• Usage: Execute SQL or NoSQL queries to fetch data.
• Example Use Case: Retrieve all users from a database table.

Insert

• Purpose: Add new data to a database.
• Usage: Insert new records into tables or collections.
• Example Use Case: Save a new user registration into the database.

Update

• Purpose: Modify existing data in a database.
• Usage: Update records based on specific criteria.
• Example Use Case: Change a user’s email address in the database.

Delete

• Purpose: Remove data from a database.
• Usage: Delete records based on conditions.
• Example Use Case: Remove a user’s record when they delete their account.

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.