Why can't you use only GET requests to build a system? What are the limitations of GET?

GET requests have several limitations that prevent them from being used to build the entire system:

• URL length restriction: browsers and servers limit the length of URLs (usually around 2000 characters), which restricts the amount of data transmitted.
• Security: data in GET requests are transmitted in the URL, which can lead to leakage of sensitive information through logs, browser history, or referrers.
• Idempotency and semantics: GET is intended for retrieving data without changing the server state. Using GET for operations that modify data (POST, PUT, DELETE) violates standards and can lead to caching and security issues.
• Caching: GET requests can be cached by browsers and proxies, which is not suitable for operations that change data.

Therefore, POST, PUT, DELETE are used for creating, updating, and deleting data, while GET is only for safe data retrieval.