使用shuttle实现bytom上跨链资产交换
蕙质兰心283
发表于 2023-1-10 02:30:43
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该工具主要的功能是实现不同资产在比原链上交换,首先是在比原链上不同资产进行交换。这个主要使用币币交换合约来进行资产的交换。如果是在比原的主侧链上进行跨链资产交换,则使用的是哈希时间锁合约来完成两条不同链上的资产交换。
下面我们来看一下操作的具体步骤:
第一步: 首先搭建节点环境
1.1 golang的版本高于1.12,同时设置好的$GOPATH环境目录 c) s! ]. e& v+ Q5 \* Y0 A: h
1.2 启动并配置好bytom节点,参考:bytom readme.md+ M8 E; E$ P5 h! \; O- G
1.3 源码构建:Shuttle仍处于测试阶段,因此存储库代码将经常更改。您可以直接从源代码构建工具。参考下面的命令:
$ git clone https://github.com/Bytom/shuttle.git $GOPATH/src/github.com/shuttle
$ cd $GOPATH/src/github.com/shuttle3 _. f7 ]0 P* o! N* o& c' }
$ make install
Shuttle help 相关命令如下:+ C) ?' i+ c$ N2 R7 u) ?9 m
$ swap -h
swap is a commond line client for bytom contract
Usage:( ]$ H8 t1 G+ `) h2 r
swap [flags]" b. W4 w% e* D
swap [command]
vailable Commands:
callHTLC call HTLC contract for asset swapping
callTradeoff call tradeoff contract for asset swapping, B. I2 H9 A7 k6 ]. O9 d
cancelHTLC cancel HTLC contract for asset swapping& ~0 v# ~ b# f2 ^9 H6 A8 z
cancelTradeoff cancel tradeoff contract for asset swapping
deployHTLC deploy HTLC contract" I% P; U3 V `- U: K. w0 u. Y
deployTradeoff deploy tradeoff contract
help Help about any command( {4 Z2 m5 |5 {, F3 x5 s
Flags:( F, u# }% z4 n4 i* G2 f8 K
-h, --help help for swap
Use "swap [command] --help" for more information about a command.
第二步:同一条链上进行跨链资产交换
如果你想在单一一条链上交换比原资产,不论是bytom主链还是vapor侧链,都直接使用Tradeoff合约可以实现资产的交换,整个交换流程图如下:
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首先我们启动bytom节点,为了测试,你可以启动solnet节点:' ?* a# C& }4 t4 {! V
$ bytomd init --chain_id=solonet --home $HOME/bytom/solonet # init bytom solonet node
$ bytomd node --home $HOME/bytom/solonet --mining # launch bytom solonet node and start mining% G6 ~* e. F! _7 o7 @1 }! I
搭建完测试节点以后,可以在区块链上创建账户,发行资产(issue asset)用来测试
创建账户参考
发行资产参考, |) \. x6 j# M+ W$ d
例如:在bytom主链上,账户A有200BTC,账户B有10个BTM,他们就可以是用shuttle工具进行交换。% `( L6 D# ]( R9 T: K8 D5 g
####2.1 下面正式部署 tradeoff合约(下面是合约部署相关命令以及相关参数)
$ swap deployTradeoff -h5 X9 t( Y; ~; _! M' K6 n) ?
deploy tradeoff contract- F1 v" x) o4 H/ U5 E
Usage:
swap deployTradeoff [contract flags(paramenters and locked value)] [txFee flag] [URL flags(ip and port)] [flags]4 x& G9 L, i% J/ ?. H6 L# d
Flags:$ J0 t: E4 y3 z% M# @6 f9 K
--amountLocked uint tradeoff contract locked value with amount //锁定资产的数量
--amountRequested uint tradeoff contract paramenter with requested amount //锁定需要兑换的资产数量
--assetLocked string tradeoff contract locked value with assetID //资产ID& |/ [2 q# \- r, x
--assetRequested string tradeoff contract paramenter with requested assetID //兑换的资产ID
--cancelKey string tradeoff contract paramenter with seller pubkey for cancelling the contract //解锁合约需要用到的pubkey
-h, --help help for deployTradeoff
--ip string network address (default "127.0.0.1")
--port string network port (default "9888")9 _/ b1 f6 M: U& H2 f( ]
--seller string tradeoff contract paramenter with seller control-program) s8 \8 p9 Q: g" Y" \( r
--txFee uint contract transaction fee (default 40000000)# l% e$ k2 Z( N* g2 B* H3 G$ ?' L4 Q
下面是实例化部署合约的过程:
$ swap deployTradeoff 10CJPO1HG0A02 12345 --amountLocked 20000000000 --amountRequested 1000000000 --assetLocked bae7e17bb8f5d0cfbfd87a92f3204da082d388d4c9b10e8dcd36b3d0a18ceb3a --assetRequested ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff --cancelKey 3e5d7d52d334964eef173021ef6a04dc0807ac8c41700fe718f5a80c2109f79e --seller 00145dd7b82556226d563b6e7d573fe61d23bd461c1f --txFee 400000009 ?2 l+ F5 w6 c9 X2 r- Z
--> contractUTXOID: 34996b0838108de8c614bc018e8fdbbfc08a47ffbe0fd6d7f41892b90de3999f
合约部署好了以后,2.5 分钟后,比原链上的一个新的区块被矿工打包后,部署的合约就可以被认证。7 G, S8 t! ]& k/ P
2.2 调用tradeoff合约(下面是调用合约的命令), h# J9 G) e1 N3 a! J7 T4 n
$ swap callTradeoff -h
call tradeoff contract for asset swapping
Usage:3 u. f/ u l- a5 a
swap callTradeoff [txFee flag] [URL flags(ip and port)] [flags]
Flags:! [. @1 Q8 S# z) a
-h, --help help for callTradeoff! r$ @2 G8 X% I1 Y
--ip string network address (default "127.0.0.1")
--port string network port (default "9888")
--txFee uint contract transaction fee (default 40000000)' e) f4 A m) p( V0 V" ], W; @
调用合约实例化参数如下:
$ swap callTradeoff 10CKAD3000A02 12345 00140fdee108543d305308097019ceb5aec3da60ec66 34996b0838108de8c614bc018e8fdbbfc08a47ffbe0fd6d7f41892b90de3999f5 S" k: A& U8 T% _
--> txID: 55e43274d2d92504a903a13e3f6517d63434fc19a2fa0e1fc0a9a5c8c75e8f6c
调用完以后,当交易在新的区块中被确认,整个资产交换过程就完成,如下图:
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交换完成后,现在账户账户A有200个BTC,账户B有10个BTM。
2.3 取消tradeoff合约(下面是取消tradeoff合约的相关命令)& r2 N1 u& D) C. x
如果有人想取消tradeoff合约交易,可以调用该命令取消,如下:8 ~8 b4 V& c: W- C$ _, O
$ swap cancelTradeoff -h. \ ~6 K8 y( h& f1 R! L E) V* ]
cancel tradeoff contract for asset swapping
Usage:
swap cancelTradeoff [txFee flag] [URL flags(ip and port)] [flags]
Flags:- M% W- e* w8 f) K) P. [
-h, --help help for cancelTradeoff
--ip string network address (default "127.0.0.1")
--port string network port (default "9888")1 w4 m9 I0 u2 e7 ^% G% g% l% w5 o
--txFee uint contract transaction fee (default 40000000)
取消tradeoff合约的实例化如下:
$ swap deployTradeoff 10CJPO1HG0A02 12345 --amountLocked 20000000000 --amountRequested 1000000000 --assetLocked bae7e17bb8f5d0cfbfd87a92f3204da082d388d4c9b10e8dcd36b3d0a18ceb3a --assetRequested ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff --cancelKey 3e5d7d52d334964eef173021ef6a04dc0807ac8c41700fe718f5a80c2109f79e --seller 00145dd7b82556226d563b6e7d573fe61d23bd461c1f --txFee 40000000# g; B1 M% m9 G0 ]# O* t
--> contractUTXOID: e898ea907f8586b3211a46b69d0cddd363f8a850f559656570eb6afc6ac382c5
$ swap cancelTradeoff 10CJPO1HG0A02 12345 00145b0a81adc5c2d68a9967082a09c96e82d62aa058 e898ea907f8586b3211a46b69d0cddd363f8a850f559656570eb6afc6ac382c5 0 }3 ?8 A Q7 ?6 E! P% _
--> txID: 0f75db743196b8b2e514c49d6483dfba9bd5ab8e913a7559ecaea0324977313f
示例图如下:
上面整个流程就是在同一条链上不同资产进行交换的整个过程,下面我们来看一下不同链上的两个资产进行交换,假设以bytom和vapor为例。. J) t; J8 K" v$ u* ]; h# u& q% u
第三步:不同链上资产进行交换
你可以使用该工具在bytom和vapor上交换资产:/ ~2 `1 i5 r6 b* \% c
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3.1 搭建并启动bytom和vapor节点
为了方便测试。你可以启动bytom和vapor的solonet节点% c3 O- X% r# Q! b
启动bytom solonet 节点: c) L, k9 {3 F4 a$ O4 f5 L! z: t
$ bytomd init --chain_id=solonet --home $HOME/bytom/solonet # init bytom solonet node/ I) E' S1 I4 a/ Y8 I% h' {
$ bytomd node --home $HOME/bytom/solonet --mining # launch bytom solonet node and start mining! t' e; P& U+ l1 F! j5 l4 n. c5 L0 W
启动vapor solonet 节点:7 e8 Z/ C0 v& Z' K
$ vapord init --chain_id=solonet --home $HOME/bytom/vapor-solonet # init vapor solonet node. O- q5 g! i6 H7 o* x) |7 V
$ vapord node --home $HOME/bytom/vapor-solonet --mining # launch vapor solonet node and start mining& A% P5 R2 y+ f/ S4 y; Q R
3.2 部署HTLC合约(合约的部署命令如下)
$ swap deployHTLC -h
deploy HTLC contract
Usage:
swap deployHTLC [contract flags(paramenters and locked value)] [txFee flag] [URL flags(ip and port)] [flags], v! b0 t p% y3 C. G, y' F3 I
Flags:! _" e0 Z3 l3 t: N( M" A
--amountLocked uint HTLC contract locked value with amount9 ^. h8 y7 T9 ?0 u& h
--assetLocked string HTLC contract locked value with assetID
--blockHeight uint HTLC contract locked value with blockHeight4 X; w+ V& g1 X! a9 S3 v
--hash string HTLC contract locked value with hash. b* N* W: b: m. O, C
-h, --help help for deployHTLC
--ip string network address (default "127.0.0.1")
--port string network port (default "9888")! h0 h8 n! U. B% u6 o z
--recipient string HTLC contract paramenter with recipientPublicKey# |+ i1 m4 ~+ [1 e$ I: U+ [" W; {7 S: E
--sender string HTLC contract paramenter with sender PublicKey
--txFee uint contract transaction fee (default 40000000)
部署HTLC合约的实例参数如下:, E3 t1 s% V+ P9 w
$ swap deployHTLC 11BB7TC8G0A02 12345 --sender 7262584844d4c14f512d1b6c9838e62c320e1d7887e7185bfea920c72a944e44 --recipient 562013c2f9082f1db52a2571034428921dd6eec8c010c2b2387f5b6125ff4aa7 --blockHeight 1200 --hash 2cf24dba5fb0a30e26e83b2ac5b9e29e1b161e5c1fa7425e73043362938b9824 --assetLocked bae7e17bb8f5d0cfbfd87a92f3204da082d388d4c9b10e8dcd36b3d0a18ceb3a --amountLocked 20000000000& t/ i9 z9 A, L
--> contractUTXOID: e1b104a03f4135b45d1c4c5fabbdca4dd0555653a588b71d790d45c4ffb2c50e, q. r7 I2 J7 A" p; a
3.3 调用HTLC合约$ X- Q5 V' \: W1 x# T) U: O
$ swap callHTLC -h+ Y6 M7 Q% l1 g
call HTLC contract for asset swapping
Usage:5 s; i$ e0 ~+ ]0 H
swap callHTLC [txFee flag] [URL flags(ip and port)] [flags]
Flags:
-h, --help help for callHTLC: X( O, [$ Y) z* ^" e# ~: R2 M
--ip string network address (default "127.0.0.1")3 V) _' N6 J0 }4 E% S2 t$ A% _
--port string network port (default "9888")
--txFee uint contract transaction fee (default 40000000)
调用HTLC合约的实力化参数如下:, g# O4 y: k( Q$ S
$ swap callHTLC 11BB86V300A04 12345 0014230cb75fcfcc70c580ce7f1d21c1e374d27334a8 68656c6c6f e1b104a03f4135b45d1c4c5fabbdca4dd0555653a588b71d790d45c4ffb2c50e
--> txID: df57b7906684e3d85adf59073ccbc0a3c5114b165626e9791f3269e9e57c319e+ L) C- U7 w& U$ J4 u% `
实际的交换过程如下:) ~. z" r9 }6 T7 V7 j( E
3.4 取消HTLC合约(命令参数如下)7 \; S" ]3 N" p- l I% p
$ swap cancelHTLC -h
cancel HTLC contract for asset swapping
Usage:
swap cancelHTLC [txFee flag] [URL flags(ip and port)] [flags]3 J: q. t/ A; h9 r" S
Flags: `6 q3 O ^; D5 y, W3 N6 @. H& h
-h, --help help for cancelHTLC% _8 A# E. W6 o, G, H5 b) T3 n
--ip string network address (default "127.0.0.1")
--port string network port (default "9888")
--txFee uint contract transaction fee (default 40000000)" P& I- J8 i9 Q7 E( A& T& s/ y% V
取消HTLC合约的实例化参数如下:
$ swap deployHTLC 11BB7TC8G0A02 12345 --sender 7262584844d4c14f512d1b6c9838e62c320e1d7887e7185bfea920c72a944e44 --recipient 562013c2f9082f1db52a2571034428921dd6eec8c010c2b2387f5b6125ff4aa7 --blockHeight 1200 --hash 2cf24dba5fb0a30e26e83b2ac5b9e29e1b161e5c1fa7425e73043362938b9824 --assetLocked bae7e17bb8f5d0cfbfd87a92f3204da082d388d4c9b10e8dcd36b3d0a18ceb3a --amountLocked 20000000000! q) G9 {5 N) u+ ~
--> contractUTXOID: 68ed6b948b93544ea135482f1acd93d6b10cdc88f52d44133d264a5ee86b1ebd8 x4 a$ c( z; A* q0 H: u3 [7 R9 b
$ swap cancelHTLC 11BB7TC8G0A02 12345 001434fec270871c1f3420db85831f59511b2dd2a026 68ed6b948b93544ea135482f1acd93d6b10cdc88f52d44133d264a5ee86b1ebd/ [0 P$ B4 v$ n4 v
--> txID: c70a467e94b287d29c6d91a2cb6f8ef3c7ef4dba315d99acf2dc9ff698996270
示例图如下:
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取消HTLC合约以后,a4发起HTLC合约兑换的资产自动返回账户。0 v ]$ n, R. l7 R0 W) X6 i& j
这些都是a账户在bytom上的操作,a5账户同时在侧链上实现相同的操作就可以了。
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