What are the main functions of Protobuf?

The main features of Protobuf include:

1. Protobuf can serialize structured data objects into binary format for use in network transmission or storage, and also deserialize binary data back into data objects.
2. Cross-platform and cross-language support: Protobuf defines a platform-agnostic and language-independent data format and encoding method, allowing Protobuf data to be used and parsed in different platforms and programming languages.
3. Data structure definition and version control: Protobuf utilizes .proto files to define data structures, which can specify message types, fields, and labels. Additionally, Protobuf supports version control, allowing for the evolution and upgrading of data structures by modifying the .proto files.
4. Efficient data compression and transmission: Due to its binary encoding and compact data format, Protobuf allows for efficient compression and transmission of data, reducing the usage of network bandwidth and storage space.
5. Scalability and flexibility: Protobuf allows for the extension of data structures, enabling the addition of new fields or message types without disrupting existing data. It also supports custom extension mechanisms for more complex data processing needs.