In which cases is it preferable to use the HTTP POST method in web development?

The HTTP POST method is preferably used when:

• Sending data to the server that changes state (creating, updating resources).
• Transmitting large volumes of data or data that should not be visible in the URL (e.g., passwords, forms).
• Performing non-idempotent operations (repeated POST may create duplicates).

Example: submitting a user registration form, uploading a file, creating a new record in a database.

Unlike GET, POST transmits data in the request body, which provides greater security and allows for complex data structures.