Bytom交易说明（帐户管理模式）

时间 2019-12-06

标签 bytom 交易说明帐户管理模式繁體版

原文原文链接

该部分主要针对用户使用bytom自带的帐户模式发送交易git

一、构建交易

API接口 build-transaction，代码api/transact.go#L120github

以标准的非BTM资产转帐交易为例，资产ID为全F表示BTM资产，在该示例中BTM资产仅做为手续费，该交易表示花费99个特定的资产到指定地址中。其中构建交易的输入请求json格式以下：npm

{
  "base_transaction": null,
  "actions": [
    {
      "account_id": "0ER7MEFGG0A02",
      "amount": 20000000,
      "asset_id": "ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff",
      "type": "spend_account"
    },
    {
      "account_id": "0ER7MEFGG0A02",
      "amount": 99,
      "asset_id": "42275aacbeda1522cd41580f875c3c452daf5174b17ba062bf0ab71a568c123f",
      "type": "spend_account"
    },
    {
      "amount": 99,
      "asset_id": "42275aacbeda1522cd41580f875c3c452daf5174b17ba062bf0ab71a568c123f",
      "address": "sm1qxe4jwhkekgnxkezu7xutu5gqnnpmyc8ppq98me",
      "type": "control_address"
    }
  ],
  "ttl": 0,
  "time_range": 0
}

对应源代码的请求对象以下：json

// BuildRequest is main struct when building transactions
type BuildRequest struct {
    Tx        *types.TxData            `json:"base_transaction"`
    Actions   []map[string]interface{} `json:"actions"`
    TTL       json.Duration            `json:"ttl"`
    TimeRange uint64                   `json:"time_range"`
}

结构字段说明以下：api

Tx 交易的TxData部分，该字段为预留字段，为空便可
TTL 构建交易的生存时间（单位为毫秒），意味着在该时间范围内，已经缓存的utxo不能用于再一次build交易，除非剩余的utxo足以构建一笔新的交易，不然会报错。当ttl为0时会被默认设置为600s，即5分钟
TimeRange 时间戳，意味着该交易将在该时间戳（区块高度）以后不会被提交上链，为了防止交易在网络中传输延迟而等待过久时间，若是交易没有在特定的时间范围内被打包，该交易便会自动失效
Actions 交易的actions结构，全部的交易都是由action构成的，map类型的interface{}保证了action类型的可扩展性。其中action中必须包含type字段，用于区分不一样的action类型，action主要包含input和output两种类型，其详细介绍以下：数组
- input action 类型：缓存
  - issue 发行资产
  - spend_account 以帐户的模式花费utxo
  - spend_account_unspent_output 直接花费指定的utxo
- output action 类型：服务器
  - control_address 接收方式为地址模式
  - control_program 接收方式为（program）合约模式
  - retire 销毁资产

注意事项：网络

一个交易必须至少包含一个input和output（coinbase交易除外，由于coinbase交易是由系统产生，故不在此加以描述），不然交易将会报错。
除了BTM资产（全部交易都是以BTM资产做为手续费）以外，其余资产在构建input和output时，全部输入和输出的资产总和必须相等，不然交易会报出输入输出不平衡的错误信息。
交易的手续费：全部inputs的BTM资产数量 - 全部outputs的BTM资产数量
交易中的资产amount都是neu为单位的，BTM的单位换算以下：1 BTM = 1000 mBTM = 100000000 neu

action简介

下面对构建交易时用到的各类action类型进行详细说明：ui

issue

issueAction结构体源代码以下：

type issueAction struct {
    assets *Registry
    bc.AssetAmount
}

type AssetAmount struct {
    AssetId *AssetID `protobuf:"bytes,1,opt,name=asset_id,json=assetId" json:"asset_id,omitempty"`
    Amount  uint64   `protobuf:"varint,2,opt,name=amount" json:"amount,omitempty"`
}

结构字段说明以下：

assets 主要用于资产的管理，无需用户设置参数
AssetAmount 表示用户须要发行的资产ID和对应的资产数目，这里的AssetID须要经过create-asset建立，而且这里不能使用BTM的资产ID

issueAction的json格式为：

{
  "amount": 100000000,
  "asset_id": "3152a15da72be51b330e1c0f8e1c0db669269809da4f16443ff266e07cc43680",
  "type": "issue"
}

例如发行一笔资产的交易示例以下：
（该交易表示发行数量为900000000个assetID的42275aacbeda1522cd41580f875c3c452daf5174b17ba062bf0ab71a568c123f的资产到接收地址sm1qxe4jwhkekgnxkezu7xutu5gqnnpmyc8ppq98me中, 其中手续费为20000000neu的BTM资产）

{
  "base_transaction": null,
  "actions": [
    {
      "account_id": "0ER7MEFGG0A02",
      "amount": 20000000,
      "asset_id": "ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff",
      "type": "spend_account"
    },
    {
      "amount": 900000000,
      "asset_id": "42275aacbeda1522cd41580f875c3c452daf5174b17ba062bf0ab71a568c123f",
      "type": "issue"
    },
    {
      "amount": 900000000,
      "asset_id": "42275aacbeda1522cd41580f875c3c452daf5174b17ba062bf0ab71a568c123f",
      "address": "sm1qxe4jwhkekgnxkezu7xutu5gqnnpmyc8ppq98me",
      "type": "control_address"
    }
  ],
  "ttl": 0,
  "time_range": 0
}

spend_account

spendAction结构体源代码以下：

type spendAction struct {
    accounts *Manager
    bc.AssetAmount
    AccountID   string  `json:"account_id"`
    ClientToken *string `json:"client_token"`
}

type AssetAmount struct {
    AssetId *AssetID `protobuf:"bytes,1,opt,name=asset_id,json=assetId" json:"asset_id,omitempty"`
    Amount  uint64   `protobuf:"varint,2,opt,name=amount" json:"amount,omitempty"`
}

结构字段说明以下：

accounts 主要用于帐户的管理，无需用户设置参数
AccountID 表示须要花费资产的帐户ID
AssetAmount 表示花费的资产ID和对应的资产数目
ClientToken 表示Reserve用户UTXO的限制条件，目前不填或为空便可

spendAction的json格式为：

{
  "account_id": "0BF63M2U00A04",
  "amount": 2000000000,
  "asset_id": "ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff",
  "type": "spend_account"
}

例如转帐一笔资产的交易示例以下：
（该交易表示经过帐户的方式转帐100000000neu的BTM资产到地址sm1qxe4jwhkekgnxkezu7xutu5gqnnpmyc8ppq98me中, 其中手续费20000000neu = 输入BTM资产数量 - 输出BTM资产数量）

{
  "base_transaction": null,
  "actions": [
    {
      "account_id": "0ER7MEFGG0A02",
      "amount": 120000000,
      "asset_id": "ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff",
      "type": "spend_account"
    },
    {
      "amount": 100000000,
      "asset_id": "ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff",
      "address": "sm1qxe4jwhkekgnxkezu7xutu5gqnnpmyc8ppq98me",
      "type": "control_address"
    }
  ],
  "ttl": 0,
  "time_range": 0
}

spend_account_unspent_output

spendUTXOAction结构体源代码以下：

type spendUTXOAction struct {
    accounts *Manager
    OutputID *bc.Hash `json:"output_id"`
    ClientToken *string `json:"client_token"`
}

结构字段说明以下：

accounts 主要用于帐户的管理，无需用户设置参数
OutputID 表示须要花费的UTXO的ID，能够根据list-unspent-outputs查询可用的UTXO，其中OutputID对应该API返回结果的id字段
ClientToken 表示Reserve用户UTXO的限制条件，目前不填或为空便可

spendUTXOAction的json格式为：

{
  "type": "spend_account_unspent_output",
  "output_id": "58f29f0f85f7bd2a91088bcbe536dee41cd0642dfb1480d3a88589bdbfd642d9"
}

例如经过花费UTXO的方式转帐一笔资产的交易示例以下：
（该交易表示经过直接花费UTXO的方式转帐100000000neu的BTM资产到地址sm1qxe4jwhkekgnxkezu7xutu5gqnnpmyc8ppq98me中, 其中手续费 = 输入BTM资产的UTXO值 - 输出BTM资产数量）

{
  "base_transaction": null,
  "actions": [
    {
      "output_id": "58f29f0f85f7bd2a91088bcbe536dee41cd0642dfb1480d3a88589bdbfd642d9",
      "type": "spend_account_unspent_output"
    },
    {
      "amount": 100000000,
      "asset_id": "ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff",
      "address": "sm1qxe4jwhkekgnxkezu7xutu5gqnnpmyc8ppq98me",
      "type": "control_address"
    }
  ],
  "ttl": 0,
  "time_range": 0
}

control_address

controlAddressAction结构体源代码以下：

type controlAddressAction struct {
    bc.AssetAmount
    Address string `json:"address"`
}

type AssetAmount struct {
    AssetId *AssetID `protobuf:"bytes,1,opt,name=asset_id,json=assetId" json:"asset_id,omitempty"`
    Amount  uint64   `protobuf:"varint,2,opt,name=amount" json:"amount,omitempty"`
}

结构字段说明以下：

Address 表示接收资产的地址，能够根据 create-account-receiver API接口建立地址
AssetAmount 表示接收的资产ID和对应的资产数目

controlAddressAction的json格式为：

{
  "amount": 100000000,
  "asset_id": "ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff",
  "address": "bm1q50u3z8empm5ke0g3ngl2t3sqtr6sd7cepd3z68",
  "type": "control_address"
}

例如转帐一笔资产的交易示例以下：
（该交易表示经过帐户的方式转帐100000000neu的BTM资产到地址sm1qxe4jwhkekgnxkezu7xutu5gqnnpmyc8ppq98me中, 其中control_address类型表示以地址做为接收方式）

{
  "base_transaction": null,
  "actions": [
    {
      "account_id": "0ER7MEFGG0A02",
      "amount": 120000000,
      "asset_id": "ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff",
      "type": "spend_account"
    },
    {
      "amount": 100000000,
      "asset_id": "ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff",
      "address": "sm1qxe4jwhkekgnxkezu7xutu5gqnnpmyc8ppq98me",
      "type": "control_address"
    }
  ],
  "ttl": 0,
  "time_range": 0
}

control_program

controlProgramAction结构体源代码以下：

type controlProgramAction struct {
    bc.AssetAmount
    Program json.HexBytes `json:"control_program"`
}

type AssetAmount struct {
    AssetId *AssetID `protobuf:"bytes,1,opt,name=asset_id,json=assetId" json:"asset_id,omitempty"`
    Amount  uint64   `protobuf:"varint,2,opt,name=amount" json:"amount,omitempty"`
}

结构字段说明以下：

Program 表示接收资产的合约脚本，能够根据 create-account-receiver API接口建立接收program（返回结果的 program 和 address 是一一对应的）
AssetAmount 表示接收的资产ID和对应的资产数目

controlProgramAction的json格式为：

{
  "amount": 100000000,
  "asset_id": "ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff",
  "control_program":"0014a3f9111f3b0ee96cbd119a3ea5c60058f506fb19",
  "type": "control_program"
}

例如转帐一笔资产的交易示例以下：
（该交易表示经过帐户的方式转帐100000000neu的BTM资产到接收program（跟address是一一对应的）0014a3f9111f3b0ee96cbd119a3ea5c60058f506fb19中, 其中control_program类型表示以program做为接收方式）

{
  "base_transaction": null,
  "actions": [
    {
      "account_id": "0ER7MEFGG0A02",
      "amount": 120000000,
      "asset_id": "ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff",
      "type": "spend_account"
    },
    {
      "amount": 100000000,
      "asset_id": "ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff",
      "control_program": "0014a3f9111f3b0ee96cbd119a3ea5c60058f506fb19",
      "type": "control_program"
    }
  ],
  "ttl": 0,
  "time_range": 0
}

retire

retireAction结构体源代码以下：

type retireAction struct {
    bc.AssetAmount
}

type AssetAmount struct {
    AssetId *AssetID `protobuf:"bytes,1,opt,name=asset_id,json=assetId" json:"asset_id,omitempty"`
    Amount  uint64   `protobuf:"varint,2,opt,name=amount" json:"amount,omitempty"`
}

结构字段说明以下：

AssetAmount 表示销毁的资产ID和对应的资产数目

retireAction的json格式为：

{
  "amount": 900000000,
  "asset_id": "3152a15da72be51b330e1c0f8e1c0db669269809da4f16443ff266e07cc43680",
  "type": "retire"
}

例如销毁一笔资产的交易示例以下：
（该交易表示经过帐户的方式将100000000neu的BTM资产销毁, retire表示销毁指定数量的资产）

{
  "base_transaction": null,
  "actions": [
    {
      "account_id": "0ER7MEFGG0A02",
      "amount": 120000000,
      "asset_id": "ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff",
      "type": "spend_account"
    },
    {
      "amount": 100000000,
      "asset_id": "ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff",
      "type": "retire"
    }
  ],
  "ttl": 0,
  "time_range": 0
}

build-transaction的输入构造完成以后，即可以经过http的调用方式进行发送交易，构建交易请求成功以后返回的json结果以下：

{
  "allow_additional_actions": false,
  "raw_transaction": "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",
  "signing_instructions": [
    {
      "position": 0,
      "witness_components": [
        {
          "keys": [
            {
              "derivation_path": [
                "010100000000000000",
                "0100000000000000"
              ],
              "xpub": "de0db655c091b2838ccb6cddb675779b0a9a4204b122e61699b339867dd10eb0dbdc926882ff6dd75c099c181c60d63eab0033a4b0a4d0a8c78079e39d7ad1d8"
            }
          ],
          "quorum": 1,
          "signatures": null,
          "type": "raw_tx_signature"
        },
        {
          "type": "data",
          "value": "d174db6506e35f2decb5be148c2984bfd0f6c67f043365bf642d1af387c04fd5"
        }
      ]
    },
    {
      "position": 1,
      "witness_components": [
        {
          "keys": [
            {
              "derivation_path": [
                "010100000000000000",
                "0800000000000000"
              ],
              "xpub": "de0db655c091b2838ccb6cddb675779b0a9a4204b122e61699b339867dd10eb0dbdc926882ff6dd75c099c181c60d63eab0033a4b0a4d0a8c78079e39d7ad1d8"
            }
          ],
          "quorum": 1,
          "signatures": null,
          "type": "raw_tx_signature"
        },
        {
          "type": "data",
          "value": "05cdbcc705f07ad87521835bbba226ad7b430cc24e5e3f008edbe61540535419"
        }
      ]
    }
  ]
}

对应响应对象的源代码以下：

// Template represents a partially- or fully-signed transaction.
type Template struct {
    Transaction         *types.Tx             `json:"raw_transaction"`
    SigningInstructions []*SigningInstruction `json:"signing_instructions"`

    // AllowAdditional affects whether Sign commits to the tx sighash or
    // to individual details of the tx so far. When true, signatures
    // commit to tx details, and new details may be added but existing
    // ones cannot be changed. When false, signatures commit to the tx
    // as a whole, and any change to the tx invalidates the signature.
    AllowAdditional bool `json:"allow_additional_actions"`
}

结构字段说明以下：

Transaction 交易相关信息，该字段包含TxData和bc.Tx两个部分：
- TxData 表示给用户展现的交易数据部分，该部分对用户可见
  - Version 交易版本
  - SerializedSize 交易序列化以后的size
  - TimeRange 交易提交上链的最大时间戳（区块高度）（主链区块高度到达该时间戳（区块高度）以后，若是交易没有被提交上链，该交易便会失效）
  - Inputs 交易输入
  - Outputs 交易输出
- bc.Tx 表示系统中处理交易用到的转换结构，该部分对用户不可见，故不作详细描述
SigningInstructions 交易的签名信息
- Position 对input action签名的位置
- WitnessComponents 对input action签名须要的数据信息，其中build交易的signatures为null，表示没有签名; 若是交易签名成功，则该字段会存在签名信息。该字段是一个interface接口，主要包含3种不一样的类型：
  - SignatureWitness 对交易模板Template中交易input action位置的合约program进行哈希，而后对hash值进行签名
    - signatures （数组类型）交易的签名，sign-transaction执行完成以后才会有值存在
    - keys （数组类型）包含主公钥xpub和派生路径derivation_path，经过它们能够在签名阶段找到对应的派生私钥child_xprv，而后使用派生私钥进行签名
    - quorum 帐户key 的个数，必须和上面的keys的长度相等。若是quorum 等于1，则表示单签帐户，不然为多签帐户
    - program 签名的数据部分，program的hash值做为签名数据。若是program为空，则会根据当前交易ID和对应action位置的InputID两部分生成一个hash，而后把它们做为指令数据自动构造一个program
  - RawTxSigWitness 对交易模板Template的交易ID和对应input action位置的InputID(该字段位于bc.Tx中)进行哈希，而后对hash值进行签名
    - signatures （数组类型）交易的签名，sign-transaction执行完成以后才会有值存在
    - keys （数组类型）包含主公钥xpub和派生路径derivation_path，经过它们能够在签名阶段找到对应的派生私钥child_xprv，而后使用派生私钥进行签名
    - quorum 帐户key的个数，必须和上面的keys 的长度相等。若是quorum 等于1，则表示单签帐户，不然为多签帐户
  - DataWitness 该类型无需签名，验证合约program的附加数据
AllowAdditional 是否容许交易的附加数据，若是为true，则交易的附加数据会添加到交易中，可是不会影响交易的执行的program脚本，对签名结果不会形成影响; 若是为false，则整个交易做为一个总体进行签名，任何数据的改变将影响整个交易的签名

估算手续费

估算手续费接口estimate-transaction-gas是对build-transaction的结果进行手续费的预估，估算的结果须要从新加到build-transaction的结果中，而后对交易进行签名和提交。其主要流程以下：

build - estimate - build - sign - submit

估算手续费的输入请求json格式以下：

{
  "transaction_template": {
    "allow_additional_actions": false,
    "raw_transaction": "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",
    "signing_instructions": [
      {
        "position": 0,
        "witness_components": [
          {
            "keys": [
              {
                "derivation_path": [
                  "010100000000000000",
                  "0100000000000000"
                ],
                "xpub": "de0db655c091b2838ccb6cddb675779b0a9a4204b122e61699b339867dd10eb0dbdc926882ff6dd75c099c181c60d63eab0033a4b0a4d0a8c78079e39d7ad1d8"
              }
            ],
            "quorum": 1,
            "signatures": null,
            "type": "raw_tx_signature"
          },
          {
            "type": "data",
            "value": "d174db6506e35f2decb5be148c2984bfd0f6c67f043365bf642d1af387c04fd5"
          }
        ]
      },
      {
        "position": 1,
        "witness_components": [
          {
            "keys": [
              {
                "derivation_path": [
                  "010100000000000000",
                  "0800000000000000"
                ],
                "xpub": "de0db655c091b2838ccb6cddb675779b0a9a4204b122e61699b339867dd10eb0dbdc926882ff6dd75c099c181c60d63eab0033a4b0a4d0a8c78079e39d7ad1d8"
              }
            ],
            "quorum": 1,
            "signatures": null,
            "type": "raw_tx_signature"
          },
          {
            "type": "data",
            "value": "05cdbcc705f07ad87521835bbba226ad7b430cc24e5e3f008edbe61540535419"
          }
        ]
      }
    ]
  }
}

对应响应对象的源代码以下：

type request struct{
    TxTemplate txbuilder.Template `json:"transaction_template"`
}

// Template represents a partially- or fully-signed transaction.
type Template struct {
    Transaction         *types.Tx             `json:"raw_transaction"`
    SigningInstructions []*SigningInstruction `json:"signing_instructions"`

    // AllowAdditional affects whether Sign commits to the tx sighash or
    // to individual details of the tx so far. When true, signatures
    // commit to tx details, and new details may be added but existing
    // ones cannot be changed. When false, signatures commit to the tx
    // as a whole, and any change to the tx invalidates the signature.
    AllowAdditional bool `json:"allow_additional_actions"`
}

其中TxTemplate相关字段的说明见build-transaction的结果描述

调用estimate-transaction-gas接口成功以后返回的json结果以下：

{
  "total_neu": 5000000,
  "storage_neu": 3840000,
  "vm_neu": 1419000
}

对应响应对象的源代码以下：

// EstimateTxGasResp estimate transaction consumed gas
type EstimateTxGasResp struct {
    TotalNeu   int64 `json:"total_neu"`
    StorageNeu int64 `json:"storage_neu"`
    VMNeu      int64 `json:"vm_neu"`
}

结构字段说明以下：

TotalNeu 预估的总手续费（单位为neu），该值直接加到build-transaction的BTM资产输入action中便可
StorageNeu 存储交易的手续费
VMNeu 运行虚拟机的手续费

二、签名交易

API接口 sign-transaction，代码api/hsm.go#L53

签名交易的输入请求json格式以下：

{
  "password": "123456",
  "transaction": {
    "allow_additional_actions": false,
    "raw_transaction": "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",
    "signing_instructions": [
      {
        "position": 0,
        "witness_components": [
          {
            "keys": [
              {
                "derivation_path": [
                  "010100000000000000",
                  "0100000000000000"
                ],
                "xpub": "de0db655c091b2838ccb6cddb675779b0a9a4204b122e61699b339867dd10eb0dbdc926882ff6dd75c099c181c60d63eab0033a4b0a4d0a8c78079e39d7ad1d8"
              }
            ],
            "quorum": 1,
            "signatures": null,
            "type": "raw_tx_signature"
          },
          {
            "type": "data",
            "value": "d174db6506e35f2decb5be148c2984bfd0f6c67f043365bf642d1af387c04fd5"
          }
        ]
      },
      {
        "position": 1,
        "witness_components": [
          {
            "keys": [
              {
                "derivation_path": [
                  "010100000000000000",
                  "0800000000000000"
                ],
                "xpub": "de0db655c091b2838ccb6cddb675779b0a9a4204b122e61699b339867dd10eb0dbdc926882ff6dd75c099c181c60d63eab0033a4b0a4d0a8c78079e39d7ad1d8"
              }
            ],
            "quorum": 1,
            "signatures": null,
            "type": "raw_tx_signature"
          },
          {
            "type": "data",
            "value": "05cdbcc705f07ad87521835bbba226ad7b430cc24e5e3f008edbe61540535419"
          }
        ]
      }
    ]
  }
}

对应请求对象的源代码以下：

type SignRequest struct {    //function pseudohsmSignTemplates request
    Password string             `json:"password"`
    Txs      txbuilder.Template `json:"transaction"`
}

结构字段说明以下：

Password 签名的密码，根据密码能够从节点服务器上解析出用户的私钥，而后用私钥对交易进行签名
Txs 交易模板，build-transaction的返回结果，结构类型为 txbuilder.Template，相关字段的说明见build-transaction的结果描述

签名交易sign-transaction请求成功以后返回的json结果以下：

{
  "sign_complete": true,
  "transaction": {
    "allow_additional_actions": false,
    "raw_transaction": "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",
    "signing_instructions": [
      {
        "position": 0,
        "witness_components": [
          {
            "keys": [
              {
                "derivation_path": [
                  "010100000000000000",
                  "0100000000000000"
                ],
                "xpub": "de0db655c091b2838ccb6cddb675779b0a9a4204b122e61699b339867dd10eb0dbdc926882ff6dd75c099c181c60d63eab0033a4b0a4d0a8c78079e39d7ad1d8"
              }
            ],
            "quorum": 1,
            "signatures": [
              "273d5fc4fb06909fbc2968ea91c411fd20f690c88e74284ce2732052400129948538562fe432afd6cf17e590e8645b80edf80b9d9581d0a980d5f9f859e38806"
            ],
            "type": "raw_tx_signature"
          },
          {
            "type": "data",
            "value": "d174db6506e35f2decb5be148c2984bfd0f6c67f043365bf642d1af387c04fd5"
          }
        ]
      },
      {
        "position": 1,
        "witness_components": [
          {
            "keys": [
              {
                "derivation_path": [
                  "010100000000000000",
                  "0800000000000000"
                ],
                "xpub": "de0db655c091b2838ccb6cddb675779b0a9a4204b122e61699b339867dd10eb0dbdc926882ff6dd75c099c181c60d63eab0033a4b0a4d0a8c78079e39d7ad1d8"
              }
            ],
            "quorum": 1,
            "signatures": [
              "0cf0beefceaf9fbf1efadedeff7aee5b38ee7a25a20d78b630b01613bc2f8c9230555a6e09aaa11a82ba68c0fc9e98a47c852dfe3de851d93f9b2b7ce256f90d"
            ],
            "type": "raw_tx_signature"
          },
          {
            "type": "data",
            "value": "05cdbcc705f07ad87521835bbba226ad7b430cc24e5e3f008edbe61540535419"
          }
        ]
      }
    ]
  }
}

对应响应对象的源代码以下：

type signResp struct {
    Tx           *txbuilder.Template `json:"transaction"`
    SignComplete bool                `json:"sign_complete"`
}

结构字段说明以下：

Tx 签名以后的交易模板txbuilder.Template，若是签名成功则signatures会由null变成签名的值，而raw_transaction的长度会变长，是由于bc.Tx部分添加了验证签名的参数信息
SignComplete 签名是否完成标志，若是为true表示签名完成，不然为false表示签名未完成，单签的话通常可能为签名密码错误; 而多签的话通常为还须要其余签名。签名失败只需将签名的交易数据用正确的密码从新签名便可，无需再次build-transaction构建交易

三、提交交易

API接口 submit-transaction，代码api/transact.go#L135

提交交易的输入请求json格式以下：

{
  "raw_transaction": "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"
}

对应源代码的请求对象以下：

type SubmitRequest struct {    //function submit request
    Tx types.Tx `json:"raw_transaction"`
}

结构字段说明以下：

Tx 签名完成以后的交易信息。这里须要注意该字段中的raw_transaction不是签名交易sign-transaction的所有返回结果，而是签名交易返回结果中transaction中的raw_transaction字段。

submit-transaction请求成功以后返回的json结果以下：

{
  "tx_id": "2c0624a7d251c29d4d1ad14297c69919214e78d995affd57e73fbf84ece361cd"
}

对应源代码的响应对象以下：

type submitTxResp struct {
    TxID *bc.Hash `json:"tx_id"`
}

结构字段说明以下：

TxID 交易ID，当交易被提交到交易池以后会显示该信息，不然表示交易失败