frostfs-api/proto-docs/container.md

Protocol Documentation

Table of Contents

• container/service.proto

• Services

  • ContainerService

• Messages

  • DeleteRequest
  • DeleteRequest.Body
  • DeleteResponse
  • DeleteResponse.Body
  • GetExtendedACLRequest
  • GetExtendedACLRequest.Body
  • GetExtendedACLResponse
  • GetExtendedACLResponse.Body
  • GetRequest
  • GetRequest.Body
  • GetResponse
  • GetResponse.Body
  • ListRequest
  • ListRequest.Body
  • ListResponse
  • ListResponse.Body
  • PutRequest
  • PutRequest.Body
  • PutResponse
  • PutResponse.Body
  • SetExtendedACLRequest
  • SetExtendedACLRequest.Body
  • SetExtendedACLResponse
  • SetExtendedACLResponse.Body

• container/types.proto

  • Messages
    • Container
    • Container.Attribute

• Scalar Value Types

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container/service.proto

Service "neo.fs.v2.container.ContainerService"

ContainerService provides API to access container smart-contract in morph chain via NeoFS node.

rpc Put(PutRequest) returns (PutResponse);
rpc Delete(DeleteRequest) returns (DeleteResponse);
rpc Get(GetRequest) returns (GetResponse);
rpc List(ListRequest) returns (ListResponse);
rpc SetExtendedACL(SetExtendedACLRequest) returns (SetExtendedACLResponse);
rpc GetExtendedACL(GetExtendedACLRequest) returns (GetExtendedACLResponse);

Method Put

Put invokes 'Put' method in container smart-contract and returns response immediately. After new block in morph chain, request is verified by inner ring nodes. After one more block in morph chain, container added into smart-contract storage.

Name	Input	Output
Put	PutRequest	PutResponse

Method Delete

Delete invokes 'Delete' method in container smart-contract and returns response immediately. After new block in morph chain, request is verified by inner ring nodes. After one more block in morph chain, container removed from smart-contract storage.

Name	Input	Output
Delete	DeleteRequest	DeleteResponse

Method Get

Get returns container from container smart-contract storage.

Name	Input	Output
Get	GetRequest	GetResponse

Method List

List returns all owner's containers from container smart-contract storage.

Name	Input	Output
List	ListRequest	ListResponse

Method SetExtendedACL

SetExtendedACL invokes 'SetEACL' method in container smart-contract and returns response immediately. After new block in morph chain, Extended ACL added into smart-contract storage.

Name	Input	Output
SetExtendedACL	SetExtendedACLRequest	SetExtendedACLResponse

Method GetExtendedACL

GetExtendedACL returns Extended ACL table and signature from container smart-contract storage.

Name	Input	Output
GetExtendedACL	GetExtendedACLRequest	GetExtendedACLResponse

Message DeleteRequest

Container removal request

Field	Type	Label	Description
body	DeleteRequest.Body		Body of container delete request message.
meta_header	neo.fs.v2.session.RequestMetaHeader		Carries request meta information. Header data is used only to regulate message transport and does not affect request execution.
verify_header	neo.fs.v2.session.RequestVerificationHeader		Carries request verification information. This header is used to authenticate the nodes of the message route and check the correctness of transmission.

Message DeleteRequest.Body

Request body

Field	Type	Label	Description
container_id	neo.fs.v2.refs.ContainerID		container_id carries identifier of the container to delete from NeoFS.
signature	neo.fs.v2.refs.Signature		Signature of container id according to RFC-6979.

Message DeleteResponse

DeleteResponse is empty because delete operation is asynchronous and done via consensus in inner ring nodes

Field	Type	Label	Description
body	DeleteResponse.Body		Body of container delete response message.
meta_header	neo.fs.v2.session.ResponseMetaHeader		Carries response meta information. Header data is used only to regulate message transport and does not affect request execution.
verify_header	neo.fs.v2.session.ResponseVerificationHeader		Carries response verification information. This header is used to authenticate the nodes of the message route and check the correctness of transmission.

Message DeleteResponse.Body

Response body

Message GetExtendedACLRequest

Get Extended ACL

Field	Type	Label	Description
body	GetExtendedACLRequest.Body		Body of get extended acl request message.
meta_header	neo.fs.v2.session.RequestMetaHeader		Carries request meta information. Header data is used only to regulate message transport and does not affect request execution.
verify_header	neo.fs.v2.session.RequestVerificationHeader		Carries request verification information. This header is used to authenticate the nodes of the message route and check the correctness of transmission.

Message GetExtendedACLRequest.Body

Request body

Field	Type	Label	Description
container_id	neo.fs.v2.refs.ContainerID		container_id carries identifier of the container that has Extended ACL.

Message GetExtendedACLResponse

Get Extended ACL

Field	Type	Label	Description
body	GetExtendedACLResponse.Body		Body of get extended acl response message.
meta_header	neo.fs.v2.session.ResponseMetaHeader		Carries response meta information. Header data is used only to regulate message transport and does not affect request execution.
verify_header	neo.fs.v2.session.ResponseVerificationHeader		Carries response verification information. This header is used to authenticate the nodes of the message route and check the correctness of transmission.

Message GetExtendedACLResponse.Body

Response body

Field	Type	Label	Description
eacl	neo.fs.v2.acl.EACLTable		Extended ACL that has been requested if it was set up.
signature	neo.fs.v2.refs.Signature		Signature of stable-marshalled Extended ACL according to RFC-6979.

Message GetRequest

Get container structure

Field	Type	Label	Description
body	GetRequest.Body		Body of container get request message.
meta_header	neo.fs.v2.session.RequestMetaHeader		Carries request meta information. Header data is used only to regulate message transport and does not affect request execution.
verify_header	neo.fs.v2.session.RequestVerificationHeader		Carries request verification information. This header is used to authenticate the nodes of the message route and check the correctness of transmission.

Message GetRequest.Body

Request body

Field	Type	Label	Description
container_id	neo.fs.v2.refs.ContainerID		container_id carries identifier of the container to get.

Message GetResponse

Get container structure

Field	Type	Label	Description
body	GetResponse.Body		Body of container get response message.
meta_header	neo.fs.v2.session.ResponseMetaHeader		Carries response meta information. Header data is used only to regulate message transport and does not affect request execution.
verify_header	neo.fs.v2.session.ResponseVerificationHeader		Carries response verification information. This header is used to authenticate the nodes of the message route and check the correctness of transmission.

Message GetResponse.Body

Response body

Field	Type	Label	Description
container	Container		Container that has been requested.

Message ListRequest

List containers

Field	Type	Label	Description
body	ListRequest.Body		Body of list containers request message.
meta_header	neo.fs.v2.session.RequestMetaHeader		Carries request meta information. Header data is used only to regulate message transport and does not affect request execution.
verify_header	neo.fs.v2.session.RequestVerificationHeader		Carries request verification information. This header is used to authenticate the nodes of the message route and check the correctness of transmission.

Message ListRequest.Body

Request body

Field	Type	Label	Description
owner_id	neo.fs.v2.refs.OwnerID		owner_id carries identifier of the container owner.

Message ListResponse

List containers

Field	Type	Label	Description
body	ListResponse.Body		Body of list containers response message.
meta_header	neo.fs.v2.session.ResponseMetaHeader		Carries response meta information. Header data is used only to regulate message transport and does not affect request execution.
verify_header	neo.fs.v2.session.ResponseVerificationHeader		Carries response verification information. This header is used to authenticate the nodes of the message route and check the correctness of transmission.

Message ListResponse.Body

Response body

Field	Type	Label	Description
container_ids	neo.fs.v2.refs.ContainerID	repeated	ContainerIDs carries list of identifiers of the containers that belong to the owner.

Message PutRequest

New NeoFS Container creation request

Field	Type	Label	Description
body	PutRequest.Body		Body of container put request message.
meta_header	neo.fs.v2.session.RequestMetaHeader		Carries request meta information. Header data is used only to regulate message transport and does not affect request execution.
verify_header	neo.fs.v2.session.RequestVerificationHeader		Carries request verification information. This header is used to authenticate the nodes of the message route and check the correctness of transmission.

Message PutRequest.Body

Request body

Field	Type	Label	Description
container	Container		Container to create in NeoFS.
signature	neo.fs.v2.refs.Signature		Signature of stable-marshalled container according to RFC-6979.

Message PutResponse

New NeoFS Container creation response

Field	Type	Label	Description
body	PutResponse.Body		Body of container put response message.
meta_header	neo.fs.v2.session.ResponseMetaHeader		Carries response meta information. Header data is used only to regulate message transport and does not affect request execution.
verify_header	neo.fs.v2.session.ResponseVerificationHeader		Carries response verification information. This header is used to authenticate the nodes of the message route and check the correctness of transmission.

Message PutResponse.Body

Response body

Field	Type	Label	Description
container_id	neo.fs.v2.refs.ContainerID		container_id carries identifier of the new container.

Message SetExtendedACLRequest

Set Extended ACL

Field	Type	Label	Description
body	SetExtendedACLRequest.Body		Body of set extended acl request message.
meta_header	neo.fs.v2.session.RequestMetaHeader		Carries request meta information. Header data is used only to regulate message transport and does not affect request execution.
verify_header	neo.fs.v2.session.RequestVerificationHeader		Carries request verification information. This header is used to authenticate the nodes of the message route and check the correctness of transmission.

Message SetExtendedACLRequest.Body

Request body

Field	Type	Label	Description
eacl	neo.fs.v2.acl.EACLTable		Extended ACL to set for the container.
signature	neo.fs.v2.refs.Signature		Signature of stable-marshalled Extended ACL according to RFC-6979.

Message SetExtendedACLResponse

Set Extended ACL

Field	Type	Label	Description
body	SetExtendedACLResponse.Body		Body of set extended acl response message.
meta_header	neo.fs.v2.session.ResponseMetaHeader		Carries response meta information. Header data is used only to regulate message transport and does not affect request execution.
verify_header	neo.fs.v2.session.ResponseVerificationHeader		Carries response verification information. This header is used to authenticate the nodes of the message route and check the correctness of transmission.

Message SetExtendedACLResponse.Body

Response body

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container/types.proto

Message Container

Container is a structure that defines object placement behaviour. Objects can be stored only within containers. They define placement rule, attributes and access control information. ID of the container is a 32 byte long SHA256 hash of stable-marshalled container message.

Field	Type	Label	Description
version	neo.fs.v2.refs.Version		Container format version. Effectively the version of API library used to create container
owner_id	neo.fs.v2.refs.OwnerID		OwnerID carries identifier of the container owner.
nonce	bytes		Nonce is a 16 byte UUID, used to avoid collisions of container id.
basic_acl	uint32		BasicACL contains access control rules for owner, system, others groups and permission bits for bearer token and Extended ACL.
attributes	Container.Attribute	repeated	Attributes define any immutable characteristics of container.
placement_policy	neo.fs.v2.netmap.PlacementPolicy		Placement policy for the object inside the container.

Message Container.Attribute

Attribute is a key-value pair of strings.

Field	Type	Label	Description
key	string		Key of immutable container attribute.
value	string		Value of immutable container attribute.

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