Why Some Companies Require All APIs to Use POST Requests
The article explains the technical reasons behind mandating POST for all API endpoints, comparing GET and POST in terms of security, payload size, data types, caching, and typical use cases, and argues that a balanced approach is usually more appropriate.
When a company mandates that all interfaces use POST requests, the decision is often based on the technical differences between GET and POST methods.
POST is considered more secure because parameters are not placed in the URL, avoiding caching, logging, and browser history storage. It also supports larger payloads, bypasses URL length limits, and can transmit various data types beyond plain ASCII.
However, POST is slower and typically used for creating, updating, or deleting resources, while GET is suited for retrieving static resources or simple queries and benefits from caching for static content.
In practice, many developers follow the industry best practice of using get for simple read‑only queries and post for operations that modify data, rather than forcing all endpoints to use post .
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