The following illustration depicts the interaction between SDKs and Milvus through gRPC. Imagine that Milvus is a black box. Protocol Buffers are used to define the interfaces of the server and the structure of the information they carry. Therefore, all operations in the black box Milvus are defined by Protocol API.

The interaction between SDKs and Milvus through gRPC

Milvus Protocol API

Milvus Protocol API consists of milvus.proto, common.proto, and schema.proto, which are Protocol Buffers files suffixed with .proto. SDKs must interact with Milvus with these Protocol Buffers files to ensure proper operation.

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