Function defaultSendingMethodHandler

mcp/shared.go:94–119

(ctx context.Context, method string, req Request)

}

func defaultSendingMethodHandler(ctx context.Context, method string, req Request) (Result, error) {
	info, ok := req.GetSession().sendingMethodInfos()[method]
	if !ok {
		// This can be called from user code, with an arbitrary value for method.
		return nil, jsonrpc2.ErrNotHandled
	}
	params := req.GetParams()
	if initParams, ok := params.(*InitializeParams); ok {
		// Fix the marshaling of initialize params, to work around #607.
		//
		// The initialize params we produce should never be nil, nor have nil
		// capabilities, so any panic here is a bug.
		params = initParams.toV2()
	}
	// Notifications don't have results.
	if strings.HasPrefix(method, "notifications/") {
		return nil, req.GetSession().getConn().Notify(ctx, method, params)
	}
	// Create the result to unmarshal into.
	// The concrete type of the result is the return type of the receiving function.
	res := info.newResult()
	if err := call(ctx, req.GetSession().getConn(), method, params, res); err != nil {
		return nil, err
	}
	return res, nil
}

// Helper method to avoid typed nil.
func orZero[T any, P *U, U any](p P) T {