Scope and Priority of Attributes

Scope of Attributes

Some attributes, such as [Header], can be applied to interfaces, methods, and parameters, with slightly different meanings and results depending on where they are used:

When applied to an interface, it means that all methods under the interface will have this request header added before the request is made. When applied to a method, it means that this method will have this request header added before the request is made. When applied to a parameter, it means that the value of the parameter will be used as the value of the request header, which can be dynamically passed in by the caller.

Priority of Attributes

Method-level attributes have higher priority than interface-level attributes. When AllowMultiple is set to true, both method-level and interface-level attributes take effect. When AllowMultiple is set to false, only the method-level attribute takes effect, and the interface-level attribute is ignored.