middleware

type AuthHandler interface {
	//Skip defines a function to skip the middleware
	Skip(ctx context.Context, req *Request) bool
	// Before defines a function which is executed before Extracor and Parser
	// If this function return an error, the middleware will return the error and skip the rest of the process
	// HandleError will be ignored if Before return an error
	Before(ctx context.Context, req *Request) error
	// Extract defines a function which is used to extract data from request, and may return a new context to be used in parse
	Extract(ctx context.Context, req *Request) (context.Context, error)
	// Parse is used to parse data from context
	Parse(ctx context.Context) (any, error)
	// Success defines a function which is executed after Extracor and Parser when they return no error.
	// This function accepts the modified context, and the request.
	// If this function return an error, the middleware will return with the error and skip error handler.
	Success(ctx context.Context, req *Request) error
	// HandleError defines a function which is executed when Extractor or Parser return error.
	HandleError(ctx context.Context, req *Request, err error) error
}

type ClientTokenGetter interface {
	Get() (string, string)
}

type Middleware interface {
	Wrap(http.Handler) http.Handler
}

type Request struct {
	Procedure  string // for example, "/acme.foo.v1.FooService/Bar"
	ClientAddr string // client address, in IP:port format
	Protocol   string // connect.ProtocolConnect, connect.ProtocolGRPC, or connect.ProtocolGRPCWeb
	Header     http.Header
}

type ServiceHandlerType int