Add functionality to select/filter which fields to return with an $embed.
贡献者指南
技术栈
javascriptnodejsrest api
领域
backendapi
议题类型
feature
难度面向新贡献者的预计实现难度，1 表示很小改动，5 表示专家级工作。
3
预计时间有经验贡献者完成调查、实现、测试并准备 pull request 的粗略时间范围。
half day
活动状态议题当前的可参与程度：新鲜、活跃、陈旧、阻塞或等待维护者输入。
stale
清晰度议题是否清楚说明期望改动、验收标准和下一步。
mostly clear
前置要求
basic Node.js knowledgefamiliarity with REST APIsunderstanding of rest hapi's query system
新手友好度1-100 的估计分数，表示该议题对首次贡献者的友好程度。
65
研究方向
Start by examining the existing $embed implementation in rest hapi's source code, likely in files handling query parsing (e.g., 'lib/query.js' or similar). Understand how $embed currently includes entire related resources. Then design a syntax for field selection, e.g., '$embed select=field1,field2'. Modify the query parser to accept the new option and apply field filtering when building the embedded response. Consider edge cases like nested embeddings. Add tests and update documentation.
