167 lines
6.9 KiB
Markdown
167 lines
6.9 KiB
Markdown
# Protocol Documentation
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<a name="top"></a>
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## Table of Contents
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- [accounting/service.proto](#accounting/service.proto)
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- Services
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- [AccountingService](#neo.fs.v2.accounting.AccountingService)
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- Messages
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- [BalanceRequest](#neo.fs.v2.accounting.BalanceRequest)
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- [BalanceRequest.Body](#neo.fs.v2.accounting.BalanceRequest.Body)
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- [BalanceResponse](#neo.fs.v2.accounting.BalanceResponse)
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- [BalanceResponse.Body](#neo.fs.v2.accounting.BalanceResponse.Body)
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- [accounting/types.proto](#accounting/types.proto)
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- Messages
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- [Decimal](#neo.fs.v2.accounting.Decimal)
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- [Scalar Value Types](#scalar-value-types)
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<a name="accounting/service.proto"></a>
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<p align="right"><a href="#top">Top</a></p>
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## accounting/service.proto
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<a name="neo.fs.v2.accounting.AccountingService"></a>
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### Service "neo.fs.v2.accounting.AccountingService"
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Accounting service provides methods for interaction with NeoFS sidechain via
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other NeoFS nodes to get information about the account balance. Deposit and
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Withdraw operations can't be implemented here, as they require Mainnet NeoFS
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smart contract invocation. Transfer operations between internal NeoFS
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accounts are possible, if both use the same token type.
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```
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rpc Balance(BalanceRequest) returns (BalanceResponse);
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```
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#### Method Balance
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Returns the amount of funds in GAS token for the requested NeoFS account.
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| Name | Input | Output |
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| ---- | ----- | ------ |
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| Balance | [BalanceRequest](#neo.fs.v2.accounting.BalanceRequest) | [BalanceResponse](#neo.fs.v2.accounting.BalanceResponse) |
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<!-- end services -->
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<a name="neo.fs.v2.accounting.BalanceRequest"></a>
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### Message BalanceRequest
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BalanceRequest message
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| Field | Type | Label | Description |
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| ----- | ---- | ----- | ----------- |
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| body | [BalanceRequest.Body](#neo.fs.v2.accounting.BalanceRequest.Body) | | Body of the balance request message. |
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| meta_header | [neo.fs.v2.session.RequestMetaHeader](#neo.fs.v2.session.RequestMetaHeader) | | Carries request meta information. Header data is used only to regulate message transport and does not affect request execution. |
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| verify_header | [neo.fs.v2.session.RequestVerificationHeader](#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. |
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<a name="neo.fs.v2.accounting.BalanceRequest.Body"></a>
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### Message BalanceRequest.Body
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To indicate the account for which the balance is requested, it's identifier
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is used. It can be any existing account in NeoFS sidechain `Balance` smart
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contract. If omitted, client implementation MUST set it to the request's
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signer `OwnerID`.
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| Field | Type | Label | Description |
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| ----- | ---- | ----- | ----------- |
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| owner_id | [neo.fs.v2.refs.OwnerID](#neo.fs.v2.refs.OwnerID) | | Valid user identifier in `OwnerID` format for which the balance is requested. Required field. |
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<a name="neo.fs.v2.accounting.BalanceResponse"></a>
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### Message BalanceResponse
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BalanceResponse message
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| Field | Type | Label | Description |
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| ----- | ---- | ----- | ----------- |
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| body | [BalanceResponse.Body](#neo.fs.v2.accounting.BalanceResponse.Body) | | Body of the balance response message. |
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| meta_header | [neo.fs.v2.session.ResponseMetaHeader](#neo.fs.v2.session.ResponseMetaHeader) | | Carries response meta information. Header data is used only to regulate message transport and does not affect request execution. |
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| verify_header | [neo.fs.v2.session.ResponseVerificationHeader](#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. |
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<a name="neo.fs.v2.accounting.BalanceResponse.Body"></a>
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### Message BalanceResponse.Body
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The amount of funds in GAS token for the `OwnerID`'s account requested.
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Balance is `Decimal` format to avoid precision issues with rounding.
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| Field | Type | Label | Description |
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| ----- | ---- | ----- | ----------- |
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| balance | [Decimal](#neo.fs.v2.accounting.Decimal) | | Amount of funds in GAS token for the requested account. |
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<!-- end messages -->
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<!-- end enums -->
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<a name="accounting/types.proto"></a>
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<p align="right"><a href="#top">Top</a></p>
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## accounting/types.proto
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<!-- end services -->
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<a name="neo.fs.v2.accounting.Decimal"></a>
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### Message Decimal
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Standard floating point data type can't be used in NeoFS due to inexactness
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of the result when doing lots of small number operations. To solve the lost
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precision issue, special `Decimal` format is used for monetary computations.
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Please see [The General Decimal Arithmetic
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Specification](http://speleotrove.com/decimal/) for detailed problem
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description.
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| Field | Type | Label | Description |
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| ----- | ---- | ----- | ----------- |
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| value | [int64](#int64) | | Number in smallest Token fractions. |
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| precision | [uint32](#uint32) | | Precision value indicating how many smallest fractions can be in one integer. |
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<!-- end messages -->
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<!-- end enums -->
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## Scalar Value Types
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| .proto Type | Notes | C++ Type | Java Type | Python Type |
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| ----------- | ----- | -------- | --------- | ----------- |
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| <a name="double" /> double | | double | double | float |
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| <a name="float" /> float | | float | float | float |
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| <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 |
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| <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 |
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| <a name="uint32" /> uint32 | Uses variable-length encoding. | uint32 | int | int/long |
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| <a name="uint64" /> uint64 | Uses variable-length encoding. | uint64 | long | int/long |
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| <a name="sint32" /> sint32 | Uses variable-length encoding. Signed int value. These more efficiently encode negative numbers than regular int32s. | int32 | int | int |
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| <a name="sint64" /> sint64 | Uses variable-length encoding. Signed int value. These more efficiently encode negative numbers than regular int64s. | int64 | long | int/long |
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| <a name="fixed32" /> fixed32 | Always four bytes. More efficient than uint32 if values are often greater than 2^28. | uint32 | int | int |
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| <a name="fixed64" /> fixed64 | Always eight bytes. More efficient than uint64 if values are often greater than 2^56. | uint64 | long | int/long |
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| <a name="sfixed32" /> sfixed32 | Always four bytes. | int32 | int | int |
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| <a name="sfixed64" /> sfixed64 | Always eight bytes. | int64 | long | int/long |
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| <a name="bool" /> bool | | bool | boolean | boolean |
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| <a name="string" /> string | A string must always contain UTF-8 encoded or 7-bit ASCII text. | string | String | str/unicode |
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| <a name="bytes" /> bytes | May contain any arbitrary sequence of bytes. | string | ByteString | str |
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