  AstroDS is a distributed storage for Cosmic Ray Astrophysics. The primary
goal of Astro DS is to gather data measured by the instruments of various
physical experiments such as TAIGA, TUNKA, KASCADE into global storage and
provide the users with a standardized user-friendly interface to search for the
datasets that match certain conditions. AstroDS consists of a set of
distributed microservices components that communicate with each other through
the Internet via REST API. The core component of AstroDS is the Data
Aggregation Service that orchestrates other components to provide access to
data. The development process of AstroDS started in 2019. This paper describes
the current design and implementation of the Data Aggregation Service and also
the benefits it brings to the astrophysical community in the early state.
