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$GOPATH环境目录$ p7 c8 i( o5 ~4 e; s3 i
1.2 启动并配置好bytom节点,参考:bytom readme.md
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:4 ^: M6 O- o3 y9 Y
$ git clone https://github.com/Bytom/shuttle.git $GOPATH/src/github.com/shuttle3 ~5 x1 H- R! H' v+ V7 \
$ cd $GOPATH/src/github.com/shuttle
$ make install- |0 @, [* S) u- Z% \; B2 N2 A4 ^
Shuttle help 相关命令如下:, o! H0 M# g! z ~) N7 Y7 p% h* z
$ swap -h
swap is a commond line client for bytom contract
Usage:3 |/ C9 s+ ]% W9 A/ U" j
swap [flags]3 i7 a2 x2 d, h8 q
swap [command]0 b+ U+ J$ J/ c% {- }
vailable Commands:7 w4 W8 G+ n2 E
callHTLC call HTLC contract for asset swapping$ }5 @, m, i2 }/ `" ?/ J: j
callTradeoff call tradeoff contract for asset swapping
cancelHTLC cancel HTLC contract for asset swapping
cancelTradeoff cancel tradeoff contract for asset swapping
deployHTLC deploy HTLC contract$ F. k; W3 A7 S* Y. ^4 ~
deployTradeoff deploy tradeoff contract/ j2 T+ K: p: n
help Help about any command
Flags:" I+ ^" S' D9 h" V% ~# P
-h, --help help for swap
Use "swap [command] --help" for more information about a command.9 i6 C0 |3 h$ y# v- A
第二步:同一条链上进行跨链资产交换5 s/ u# B3 |* o2 n) }2 z l: M
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:' S3 O6 G s0 `4 J
首先我们启动bytom节点,为了测试,你可以启动solnet节点:
$ bytomd init --chain_id=solonet --home $HOME/bytom/solonet # init bytom solonet node# Z2 f. X- j; W0 d! U# w$ ]
$ bytomd node --home $HOME/bytom/solonet --mining # launch bytom solonet node and start mining
搭建完测试节点以后,可以在区块链上创建账户,发行资产(issue asset)用来测试$ X' \" T+ l( |
创建账户参考1 `) z: |& K8 Q3 L
发行资产参考
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。
####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)9 B, U3 W; Q+ i5 |& z
$ swap deployTradeoff -h, m ~6 ^) M' I8 G' ?$ ^
deploy tradeoff contract/ E2 `8 \1 N$ J$ `; F5 K
Usage:1 c+ {6 j( o$ O
swap deployTradeoff [contract flags(paramenters and locked value)] [txFee flag] [URL flags(ip and port)] [flags]
Flags:# h& K: a8 N& _
--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) s1 j e- H! _, h6 L5 f. @
--assetLocked string tradeoff contract locked value with assetID //资产ID
--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# p" A( Q6 o$ `; U6 P$ s
-h, --help help for deployTradeoff/ s5 g0 ]/ c- ]3 q- N- I4 z
--ip string network address (default "127.0.0.1")1 |% w+ ~) O! x4 h# m/ U H3 J: g( S
--port string network port (default "9888")' G% _( E5 m; V( H3 P ]5 b0 M
--seller string tradeoff contract paramenter with seller control-program% q& f3 C1 ]" O( i6 \
--txFee uint contract transaction fee (default 40000000)/ I' j" c0 x! U# y* s
下面是实例化部署合约的过程:% f d& ^) r* N F
$ swap deployTradeoff 10CJPO1HG0A02 12345 --amountLocked 20000000000 --amountRequested 1000000000 --assetLocked bae7e17bb8f5d0cfbfd87a92f3204da082d388d4c9b10e8dcd36b3d0a18ceb3a --assetRequested ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff --cancelKey 3e5d7d52d334964eef173021ef6a04dc0807ac8c41700fe718f5a80c2109f79e --seller 00145dd7b82556226d563b6e7d573fe61d23bd461c1f --txFee 40000000
--> contractUTXOID: 34996b0838108de8c614bc018e8fdbbfc08a47ffbe0fd6d7f41892b90de3999f* Y5 ]+ S( S- ]6 O
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。
2.2 调用tradeoff合约(下面是调用合约的命令)
$ swap callTradeoff -h0 I3 X% E- x1 l5 `
call tradeoff contract for asset swapping
Usage:% K) y( ]3 F) \0 o8 ~" r# u1 Q
swap callTradeoff [txFee flag] [URL flags(ip and port)] [flags]& ~+ N1 _, D7 F; \7 e$ {
Flags:
-h, --help help for callTradeoff9 r' I3 ^1 {7 I/ m7 D
--ip string network address (default "127.0.0.1")
--port string network port (default "9888")# q1 o2 G% _' p3 A/ Y
--txFee uint contract transaction fee (default 40000000)% w2 Z; V. |6 _) ~( f, q( o0 [
调用合约实例化参数如下:+ D2 | b3 P& ]/ H2 x3 v4 i3 ^
$ swap callTradeoff 10CKAD3000A02 12345 00140fdee108543d305308097019ceb5aec3da60ec66 34996b0838108de8c614bc018e8fdbbfc08a47ffbe0fd6d7f41892b90de3999f
--> 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:3 Q3 O4 w4 y- w# I y
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)
如果有人想取消tradeoff合约交易,可以调用该命令取消,如下:5 Q& K1 m% ]4 O- n" T. c6 C( \6 c
$ swap cancelTradeoff -h' Q! z A# d0 h( ^. X* Z4 U& z" Z+ ?
cancel tradeoff contract for asset swapping
Usage:, o+ z' B+ R( j9 {
swap cancelTradeoff [txFee flag] [URL flags(ip and port)] [flags]8 x) q# H: C, K# B2 m7 K9 M: R' `
Flags:+ O3 C3 y9 I" Y% p0 P% P0 e9 e
-h, --help help for cancelTradeoff
--ip string network address (default "127.0.0.1")" I6 g, B# B5 `3 E- ?2 I
--port string network port (default "9888")
--txFee uint contract transaction fee (default 40000000)
取消tradeoff合约的实例化如下:# c) l+ e; C' K9 }$ F" _- C
$ swap deployTradeoff 10CJPO1HG0A02 12345 --amountLocked 20000000000 --amountRequested 1000000000 --assetLocked bae7e17bb8f5d0cfbfd87a92f3204da082d388d4c9b10e8dcd36b3d0a18ceb3a --assetRequested ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff --cancelKey 3e5d7d52d334964eef173021ef6a04dc0807ac8c41700fe718f5a80c2109f79e --seller 00145dd7b82556226d563b6e7d573fe61d23bd461c1f --txFee 40000000: k" K4 d5 @: s6 _2 I% W8 H1 L
--> contractUTXOID: e898ea907f8586b3211a46b69d0cddd363f8a850f559656570eb6afc6ac382c5
$ swap cancelTradeoff 10CJPO1HG0A02 12345 00145b0a81adc5c2d68a9967082a09c96e82d62aa058 e898ea907f8586b3211a46b69d0cddd363f8a850f559656570eb6afc6ac382c5
--> 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。
第三步:不同链上资产进行交换: M% j: j3 ?' X9 i( t8 Z# p
你可以使用该工具在bytom和vapor上交换资产:) I2 A3 a! ^9 P" o0 l5 a" ~ u
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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
启动bytom solonet 节点:
$ 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
启动vapor solonet 节点:
$ vapord init --chain_id=solonet --home $HOME/bytom/vapor-solonet # init vapor solonet node
$ vapord node --home $HOME/bytom/vapor-solonet --mining # launch vapor solonet node and start mining( D! @! J! K1 a& w
3.2 部署HTLC合约(合约的部署命令如下)
$ swap deployHTLC -h; Y5 v, o' B/ U r
deploy HTLC contract) H+ F5 V! W3 e$ @- |
Usage:
swap deployHTLC [contract flags(paramenters and locked value)] [txFee flag] [URL flags(ip and port)] [flags]' u9 J; |' R7 B3 T
Flags:& a( [- K/ a7 D* T+ l2 R
--amountLocked uint HTLC contract locked value with amount
--assetLocked string HTLC contract locked value with assetID( h7 f& J. J8 Q( Y1 s+ ^/ I+ Y
--blockHeight uint HTLC contract locked value with blockHeight
--hash string HTLC contract locked value with hash; B6 U2 z0 F& R1 S( k/ X
-h, --help help for deployHTLC
--ip string network address (default "127.0.0.1")
--port string network port (default "9888"): |4 w( r5 R7 d$ [) n5 \
--recipient string HTLC contract paramenter with recipientPublicKey
--sender string HTLC contract paramenter with sender PublicKey# I8 Y0 r& `1 Y$ ^+ c! y
--txFee uint contract transaction fee (default 40000000)& t/ f9 d! v$ @+ h! A
部署HTLC合约的实例参数如下:( X% `0 R' p2 ^1 f
$ swap deployHTLC 11BB7TC8G0A02 12345 --sender 7262584844d4c14f512d1b6c9838e62c320e1d7887e7185bfea920c72a944e44 --recipient 562013c2f9082f1db52a2571034428921dd6eec8c010c2b2387f5b6125ff4aa7 --blockHeight 1200 --hash 2cf24dba5fb0a30e26e83b2ac5b9e29e1b161e5c1fa7425e73043362938b9824 --assetLocked bae7e17bb8f5d0cfbfd87a92f3204da082d388d4c9b10e8dcd36b3d0a18ceb3a --amountLocked 200000000005 H0 w4 L x; B! E( z
--> contractUTXOID: e1b104a03f4135b45d1c4c5fabbdca4dd0555653a588b71d790d45c4ffb2c50e
3.3 调用HTLC合约
$ swap callHTLC -h
call HTLC contract for asset swapping
Usage:
swap callHTLC [txFee flag] [URL flags(ip and port)] [flags]
Flags:, i& D* }, J' C( m! a/ C: m
-h, --help help for callHTLC4 P$ u0 L) N% N' G( e7 [
--ip string network address (default "127.0.0.1")* H" {$ T, \& ?7 r. Y- h1 B0 g! L
--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:
$ swap callHTLC 11BB86V300A04 12345 0014230cb75fcfcc70c580ce7f1d21c1e374d27334a8 68656c6c6f e1b104a03f4135b45d1c4c5fabbdca4dd0555653a588b71d790d45c4ffb2c50e
--> txID: df57b7906684e3d85adf59073ccbc0a3c5114b165626e9791f3269e9e57c319e
实际的交换过程如下:
: ]6 B- t5 q+ T+ l2 B
3.4 取消HTLC合约(命令参数如下)
$ swap cancelHTLC -h
cancel HTLC contract for asset swapping6 L0 G+ L9 w7 u0 f' z
Usage:0 s N1 k' o# r! O: O+ B
swap cancelHTLC [txFee flag] [URL flags(ip and port)] [flags]3 n; X8 k* d1 R! n2 C8 y! Q
Flags:
-h, --help help for cancelHTLC& T' @6 ]1 d6 K$ D! p& z
--ip string network address (default "127.0.0.1")/ y9 N* A- p9 @6 M8 o3 Y' \2 _
--port string network port (default "9888")
--txFee uint contract transaction fee (default 40000000)
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! S8 x& F! `+ U' R
--> contractUTXOID: 68ed6b948b93544ea135482f1acd93d6b10cdc88f52d44133d264a5ee86b1ebd
$ swap cancelHTLC 11BB7TC8G0A02 12345 001434fec270871c1f3420db85831f59511b2dd2a026 68ed6b948b93544ea135482f1acd93d6b10cdc88f52d44133d264a5ee86b1ebd+ I9 {( l2 K) J7 @
--> txID: c70a467e94b287d29c6d91a2cb6f8ef3c7ef4dba315d99acf2dc9ff698996270 % T" I* g1 V3 P' Y: ^) ?
示例图如下:
取消HTLC合约以后,a4发起HTLC合约兑换的资产自动返回账户。8 I& H- ^1 r# _% ]
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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