# Protocol Documentation <a name="top"></a> ## 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) <a name="session/service.proto"></a> <p align="right"><a href="#top">Top</a></p> ## session/service.proto <a name="session.Session"></a> ### 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) | <!-- end services --> <a name="session.CreateRequest"></a> ### Message CreateRequest CreateRequest carries an information necessary for opening a session | Field | Type | Label | Description | | ----- | ---- | ----- | ----------- | | OwnerID | [refs.OwnerID](#refs.OwnerID) | | OwnerID carries an identifier of a session initiator. | | Lifetime | [service.TokenLifetime](#service.TokenLifetime) | | Lifetime carries a lifetime of the session | | Meta | [service.RequestMetaHeader](#service.RequestMetaHeader) | | RequestMetaHeader contains information about request meta headers (should be embedded into message) | | Verify | [service.RequestVerificationHeader](#service.RequestVerificationHeader) | | RequestVerificationHeader is a set of signatures of every NeoFS Node that processed request (should be embedded into message) | <a name="session.CreateResponse"></a> ### Message CreateResponse CreateResponse carries an information about the opened session | Field | Type | Label | Description | | ----- | ---- | ----- | ----------- | | ID | [bytes](#bytes) | | ID carries an identifier of session token | | SessionKey | [bytes](#bytes) | | SessionKey carries a session public key | <!-- end messages --> <!-- end enums --> ## Scalar Value Types | .proto Type | Notes | C++ Type | Java Type | Python Type | | ----------- | ----- | -------- | --------- | ----------- | | <a name="double" /> double | | double | double | float | | <a name="float" /> float | | float | float | float | | <a name="int32" /> 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 | | <a name="int64" /> 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 | | <a name="uint32" /> uint32 | Uses variable-length encoding. | uint32 | int | int/long | | <a name="uint64" /> uint64 | Uses variable-length encoding. | uint64 | long | int/long | | <a name="sint32" /> sint32 | Uses variable-length encoding. Signed int value. These more efficiently encode negative numbers than regular int32s. | int32 | int | int | | <a name="sint64" /> sint64 | Uses variable-length encoding. Signed int value. These more efficiently encode negative numbers than regular int64s. | int64 | long | int/long | | <a name="fixed32" /> fixed32 | Always four bytes. More efficient than uint32 if values are often greater than 2^28. | uint32 | int | int | | <a name="fixed64" /> fixed64 | Always eight bytes. More efficient than uint64 if values are often greater than 2^56. | uint64 | long | int/long | | <a name="sfixed32" /> sfixed32 | Always four bytes. | int32 | int | int | | <a name="sfixed64" /> sfixed64 | Always eight bytes. | int64 | long | int/long | | <a name="bool" /> bool | | bool | boolean | boolean | | <a name="string" /> string | A string must always contain UTF-8 encoded or 7-bit ASCII text. | string | String | str/unicode | | <a name="bytes" /> bytes | May contain any arbitrary sequence of bytes. | string | ByteString | str |