# Protocol Documentation <a name="top"></a> ## Table of Contents - [bootstrap/types.proto](#bootstrap/types.proto) - Messages - [NodeInfo](#bootstrap.NodeInfo) - [NodeInfo.Attribute](#bootstrap.NodeInfo.Attribute) - [Scalar Value Types](#scalar-value-types) <a name="bootstrap/types.proto"></a> <p align="right"><a href="#top">Top</a></p> ## bootstrap/types.proto <!-- end services --> <a name="bootstrap.NodeInfo"></a> ### Message NodeInfo Groups the information about the NeoFS node. | Field | Type | Label | Description | | ----- | ---- | ----- | ----------- | | Address | [string](#string) | | Carries network address of the NeoFS node. | | PublicKey | [bytes](#bytes) | | Carries public key of the NeoFS node in a binary format. | | Attributes | [NodeInfo.Attribute](#bootstrap.NodeInfo.Attribute) | repeated | Carries list of the NeoFS node attributes in a string key-value format. | | state | [NodeInfo.State](#bootstrap.NodeInfo.State) | | Carries state of the NeoFS node. | <a name="bootstrap.NodeInfo.Attribute"></a> ### Message NodeInfo.Attribute Groups attributes of the NeoFS node. | Field | Type | Label | Description | | ----- | ---- | ----- | ----------- | | Key | [string](#string) | | Carries string key to the node attribute. | | Value | [string](#string) | | Carries string value of the node attribute. | <!-- end messages --> <a name="bootstrap.NodeInfo.State"></a> ### NodeInfo.State Represents the enumeration of various states of the NeoFS node. | Name | Number | Description | | ---- | ------ | ----------- | | Unknown | 0 | Undefined state. | | Online | 1 | Active state on the network. | | Offline | 2 | Network unavailable state. | <!-- 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 |