frostfs-api/proto-docs/service.md
2020-04-23 13:34:06 +03:00

5.3 KiB

Protocol Documentation

Table of Contents

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service/meta.proto

Message RequestMetaHeader

RequestMetaHeader contains information about request meta headers (should be embedded into message)

Field Type Label Description
TTL uint32 TTL must be larger than zero, it decreased in every NeoFS Node
Epoch uint64 Epoch for user can be empty, because node sets epoch to the actual value
Version uint32 Version defines protocol version TODO: not used for now, should be implemented in future
Raw bool Raw determines whether the request is raw or not

Message ResponseMetaHeader

ResponseMetaHeader contains meta information based on request processing by server (should be embedded into message)

Field Type Label Description
Epoch uint64 Current NeoFS epoch on server
Version uint32 Version defines protocol version TODO: not used for now, should be implemented in future

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service/verify.proto

Message RequestVerificationHeader

RequestVerificationHeader is a set of signatures of every NeoFS Node that processed request (should be embedded into message).

Field Type Label Description
Signatures RequestVerificationHeader.Signature repeated Signatures is a set of signatures of every passed NeoFS Node

Message RequestVerificationHeader.Sign

Field Type Label Description
Sign bytes Sign is signature of the request or session key.
Peer bytes Peer is compressed public key used for signature.

Message RequestVerificationHeader.Signature

Field Type Label Description
Sign RequestVerificationHeader.Sign Sign is a signature and public key of the request.
Origin RequestVerificationHeader.Sign Origin used for requests, when trusted node changes it and re-sign with session key. If session key used for signature request, then Origin should contain public key of user and signed session 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