# Protocol Documentation ## Table of Contents - [session/service.proto](#session/service.proto) - Services - [Session](#session.Session) - Messages - [CreateRequest](#session.CreateRequest) - [CreateResponse](#session.CreateResponse) - [Scalar Value Types](#scalar-value-types)

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## session/service.proto ### Service "session.Session" ``` rpc Create(CreateRequest) returns (CreateResponse); ``` #### Method Create Create opens new session between the client and the server. | Name | Input | Output | | ---- | ----- | ------ | | Create | [CreateRequest](#session.CreateRequest) | [CreateResponse](#session.CreateResponse) | ### Message CreateRequest CreateRequest carries an information necessary for opening a session. | Field | Type | Label | Description | | ----- | ---- | ----- | ----------- | | owner_id | [refs.OwnerID](#refs.OwnerID) | | Carries an identifier of a session initiator. | | lifetime | [service.TokenLifetime](#service.TokenLifetime) | | Carries a lifetime of the session. | | meta_header | [service.RequestMetaHeader](#service.RequestMetaHeader) | | Carries request meta information. Header data is used only to regulate message transport and does not affect request execution. | | verify_header | [service.RequestVerificationHeader](#service.RequestVerificationHeader) | | Carries request verification information. This header is used to authenticate the nodes of the message route and check the correctness of transmission. | ### Message CreateResponse CreateResponse carries an information about the opened session. | Field | Type | Label | Description | | ----- | ---- | ----- | ----------- | | id | [bytes](#bytes) | | id carries an identifier of session token. | | session_key | [bytes](#bytes) | | session_key carries a session public key. | ## Scalar Value Types | .proto Type | Notes | C++ Type | Java Type | Python Type | | ----------- | ----- | -------- | --------- | ----------- | | double | | double | double | float | | float | | float | float | float | | int32 | Uses variable-length encoding. Inefficient for encoding negative numbers – if your field is likely to have negative values, use sint32 instead. | int32 | int | int | | int64 | Uses variable-length encoding. Inefficient for encoding negative numbers – if your field is likely to have negative values, use sint64 instead. | int64 | long | int/long | | uint32 | Uses variable-length encoding. | uint32 | int | int/long | | uint64 | Uses variable-length encoding. | uint64 | long | int/long | | sint32 | Uses variable-length encoding. Signed int value. These more efficiently encode negative numbers than regular int32s. | int32 | int | int | | sint64 | Uses variable-length encoding. Signed int value. These more efficiently encode negative numbers than regular int64s. | int64 | long | int/long | | fixed32 | Always four bytes. More efficient than uint32 if values are often greater than 2^28. | uint32 | int | int | | fixed64 | Always eight bytes. More efficient than uint64 if values are often greater than 2^56. | uint64 | long | int/long | | sfixed32 | Always four bytes. | int32 | int | int | | sfixed64 | Always eight bytes. | int64 | long | int/long | | bool | | bool | boolean | boolean | | string | A string must always contain UTF-8 encoded or 7-bit ASCII text. | string | String | str/unicode | | bytes | May contain any arbitrary sequence of bytes. | string | ByteString | str |