RestAPI
API设计的关键原则
1. Idempotent幂等性
A well-designed API should be idempotent which means calling it multiple times doesn't change the result, and it should always return the same result.
一个良好的API需要满足幂等性，这意味着多次调用同一个方法，都应该返回相同的结果
2. Pagination考虑分页
Common queries also include limit and offset for pagination which allows users or the client to retrieve specific sets of data without overwhelming the system.
通常查询方法需要包含limit和offset进行分页查询，以防止压垮系统
3. Backward Compatibility向后兼容
When modifying endpoints, it's important to maintain backward compatibility. A common practice is to introduce a new version of API.
修改API时，保持向后兼容性非常重要 一种常见的做法是引入新版本的 API
4. Rate Limitation 考虑限流
Rate Limitation is used to control the number of requests a user can make in a certain time. It prevents a single user from sending too many requests to a single API. For endpoints with expected high traffic, set rate limits in advance to protect the system.
速率限制用于控制用户在一定时间内可以发出的请求数。它可以防止单个用户向单个 API 发送过多的请求 对于可预期的访问量较高的接口，提前做好速率限制，以保护系统
5. CORS 跨域
Cross-origin policies can control which domains can access your API, preventing unwanted cross-site interactions.
跨域策略可以控制哪些域可以访问您的 API，从而防止不必要的跨站点交互
