内容简介:该部分主要针对用户使用bytom自带的账户模式发送交易API接口 build-transaction,代码以标准的非BTM资产转账交易为例,资产ID为全F表示BTM资产,在该示例中BTM资产仅作为手续费,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格式如下:
该部分主要针对用户使用bytom自带的账户模式发送交易
1、构建交易
API接口 build-transaction,代码 api/transact.go#L120
以标准的非BTM资产转账交易为例,资产ID为全F表示BTM资产,在该示例中BTM资产仅作为手续费,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格式如下:
{ "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如下:
// 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"` }
结构字段说明如下:
-
Tx
交易的TxData
部分,该字段为预留字段,为空即可 -
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,否则会报错。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)之后不会被提交上链,为了防止交易在网络中传输延迟而等待太久时间,如果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,所有的交易都是由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,用于区分不同的action类型,action
主要包含input
和output
两种类型,其详细介绍如下:-
input action
类型:- issue 发行资产
- spend_account 以账户的模式花费utxo
- spend_account_unspent_output 直接花费指定的utxo
-
output action
类型:- 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 :
- 一个交易必须至少包含一个input和output(coinbase交易除外,因为coinbase交易是由系统产生,故不在此加以描述),否则交易将会报错。
- 除了BTM资产(所有交易都是以BTM资产作为手续费)之外,其他资产在构建input和output时,所有输入和输出的资产总和必须相等,否则交易会报出输入输出不平衡的错误信息。
- 交易的手续费: 所有inputs的BTM资产数量 - 所有outputs的BTM资产数量
- 交易中的资产amount都是neu为单位的,BTM的单位换算如下:1 BTM = 1000 mBTM = 100000000 neu
action简介
下面对构建交易时用到的各种 action
类型进行详细说明:
issue
issueAction
结构体源代码如下:
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"` }
结构字段说明如下:
-
assets
主要用于资产的管理,无需用户设置参数 -
AssetAmount
表示用户需要发行的资产ID和对应的资产数目,这里的AssetID
需要通过create-asset
创建,并且这里不能使用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如下:
(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 20000000
neu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
结构体源代码如下:
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"` }
结构字段说明如下:
accounts AccountID AssetAmount ClientToken
spendAction
的 json
格式为:
{ "account_id": "0BF63M2U00A04", "amount": 2000000000, "asset_id": "ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff", "type": "spend_account" }
例如转账一笔资产的交易示例如下:
(该交易表示通过账户的方式转账 100000000
neu的BTM资产到地址 sm1qxe4jwhkekgnxkezu7xutu5gqnnpmyc8ppq98me
中, 其中手续费 20000000
neu = 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
结构体源代码如下:
type spendUTXOAction struct { accounts *Manager OutputID *bc.Hash `json:"output_id"` ClientToken *string `json:"client_token"` }
结构字段说明如下:
-
accounts
主要用于账户的管理,无需用户设置参数 -
OutputID
表示需要花费的UTXO的ID,可以根据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,目前不填或为空即可
spendUTXOAction
的 json
格式为:
{ "type": "spend_account_unspent_output", "output_id": "58f29f0f85f7bd2a91088bcbe536dee41cd0642dfb1480d3a88589bdbfd642d9" }
例如通过花费UTXO的方式转账一笔资产的交易示例如下:
(该交易表示通过直接花费UTXO的方式转账 100000000
neu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
结构体源代码如下:
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"` }
结构字段说明如下:
-
Address
表示接收资产的地址,可以根据create-account-receiver
API接口创建地址 -
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" }
例如转账一笔资产的交易示例如下:
(该交易表示通过账户的方式转账 100000000
neu的BTM资产到地址 sm1qxe4jwhkekgnxkezu7xutu5gqnnpmyc8ppq98me
中, 其中 control_address
类型表示以地址作为接收方式)
{ "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
结构体源代码如下:
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"` }
结构字段说明如下:
-
Program
表示接收资产的合约脚本,可以根据create-account-receiver
API接口创建接收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" }
例如转账一笔资产的交易示例如下:
(该交易表示通过账户的方式转账 100000000
neu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
作为接收方式)
{ "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
结构体源代码如下:
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"` }
结构字段说明如下:
-
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如下:
(该交易表示通过账户的方式将 100000000
neu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
的输入构造完成之后,便可以通过http的调用方式进行发送交易,构建交易请求成功之后返回的json结果如下:
{ "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如下:
// 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"` }
结构字段说明如下:
-
Transaction
交易相关信息,该字段包含TxData
和bc.Tx
两个部分:-
TxData
表示给用户展示的交易数据部分,该部分对用户可见Version SerializedSize TimeRange Inputs Outputs
-
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,故不做详细描述
-
-
SigningInstructions
交易的签名信息-
Position
对input action
签名的位置 -
WitnessComponents
对input action
签名需要的数据信息,其中build交易的signatures
为null
,表示没有签名; 如果交易签名成功,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种不同的类型:-
SignatureWitness
对交易模板Template
中交易input action
位置的合约program进行哈希,然后对hash值进行签名-
signatures
(数组类型)交易的签名,sign-transaction
执行完成之后才会有值存在 -
keys
(数组类型)包含主公钥xpub
和派生路径derivation_path
,通过它们可以在签名阶段找到对应的派生私钥child_xprv
,然后使用派生私钥进行签名 -
quorum
账户key
的个数,必须和上面的keys
的长度相等。如果quorum
等于1,则表示单签账户,否则为多签账户 -
program
签名的数据部分,program
的hash值作为签名数据。如果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,然后把它们作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,然后对hash值进行签名-
signatures
(数组类型)交易的签名,sign-transaction
执行完成之后才会有值存在 -
keys
(数组类型)包含主公钥xpub
和派生路径derivation_path
,通过它们可以在签名阶段找到对应的派生私钥child_xprv
,然后使用派生私钥进行签名 -
quorum
账户key
的个数,必须和上面的keys
的长度相等。如果quorum
等于1,则表示单签账户,否则为多签账户
-
-
DataWitness
该类型无需签名,验证合约program的附加数据
-
-
-
AllowAdditional
是否允许交易的附加数据,如果为true
,则交易的附加数据会添加到交易中,但是不会影响交易的执行的program
脚本,对签名结果不会造成影响; 如果为false
,则整个交易作为一个整体进行签名,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,估算的结果需要重新加到 build-transaction
的结果中,然后对交易进行签名和提交。其主要流程如下:
build - estimate - build - sign - submit
估算手续费的输入请求json格式如下:
{ "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如下:
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
接口成功之后返回的json结果如下:
{ "total_neu": 5000000, "storage_neu": 3840000, "vm_neu": 1419000 }
对应响应对象的源代码如下:
// EstimateTxGasResp estimate transaction consumed gas type EstimateTxGasResp struct { TotalNeu int64 `json:"total_neu"` StorageNeu int64 `json:"storage_neu"` VMNeu int64 `json:"vm_neu"` }
结构字段说明如下:
TotalNeu StorageNeu VMNeu
2、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格式如下:
{ "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如下:
type SignRequest struct { //function pseudohsmSignTemplates request Password string `json:"password"` Txs txbuilder.Template `json:"transaction"` }
结构字段说明如下:
-
Password
签名的密码,根据密码可以从节点服务器上解析出用户的私钥,然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
请求成功之后返回的json结果如下:
{ "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如下:
type signResp struct { Tx *txbuilder.Template `json:"transaction"` SignComplete bool `json:"sign_complete"` }
结构字段说明如下:
-
Tx
签名之后的交易模板txbuilder.Template
,如果签名成功则signatures
会由null变成签名的值,而raw_transaction
的长度会变长,是因为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,如果为true
表示签名完成,否则为false
表示签名未完成,单签的话一般可能为签名密码错误; 而多签的话一般为还需要其他签名。签名失败只需将签名的交易数据用正确的密码重新签名即可,无需再次build-transaction
构建交易
3、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格式如下:
{ "raw_transaction": "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" }
对应源代码的请求对象如下:
type SubmitRequest struct { //function submit request Tx types.Tx `json:"raw_transaction"` }
结构字段说明如下:
-
Tx
签名完成之后的交易信息。这里需要注意该字段中的raw_transaction
不是签名交易sign-transaction
的全部返回结果,而是签名交易返回结果中transaction
中的raw_transaction
字段。
submit-transaction
请求成功之后返回的json结果如下:
{ "tx_id": "2c0624a7d251c29d4d1ad14297c69919214e78d995affd57e73fbf84ece361cd" }
对应源代码的响应对象如下:
type submitTxResp struct { TxID *bc.Hash `json:"tx_id"` }
结构字段说明如下:
-
TxID
交易ID,当交易被提交到交易池之后会显示该信息,否则表示交易失败
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