EOS纯技术上手学习
罗宾虚汉
发表于 2022-11-4 20:37:25
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主要内容:: n/ A) j- U" O1 S# j
EOS Docker快速部署
EOSC使用/ g) @& S5 J/ |! D/ r/ P* T }
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创建钱包
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将私钥导入钱包) t; D) n; l+ L$ i+ e% ?/ `
锁定和解锁钱包
创建账户8 S& F: e7 z, b- _) J' k
内置转账
查询交易历史
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测试合约 - currency r( V2 ?2 {% M/ T z3 y
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调用合约6 M# o1 m v4 W3 ?& g" i
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查询合约$ N7 s5 i+ F8 m/ m
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链接特定的节点
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链接独立钱包服务
免签名验证% M9 {+ Z' E# R5 O {3 k
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其他RPC调用# o/ W# X2 ?/ K. \' x" G2 ]' `
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EOS Docker快速部署 I2 b/ }" a+ U# n
构建eos镜像
git clone https://github.com/EOSIO/eos.git --recursive" W/ t; V2 C, z, A8 Q3 l
cd eos% Y" ^3 {( L: Q
cp genesis.json Docker 7 i5 m' F N! c' `% |% u" s
docker build -t eosio/eos -f Docker/Dockerfile .
启动容器* T6 }! l4 c# W; H* a' _6 m5 z
sudo rm -rf /data/store/eos # options
sudo mkdir -p /data/store/eos4 ?- B& r2 H0 m" [, L# P
docker-compose -f Docker/docker-compose.yml up# p2 ?+ G$ _$ f4 [1 K/ T- M8 q
如果 docker-compose 启动有报错, 可能需要给文件存储目录赋予用户读写权限
sudo chown -R SYSTEM_USER /data/store/eos# z' m5 B% w! y7 j9 t: R4 x
验证,查询区块链状态信息
curl http://127.0.0.1:8888/v1/chain/get_info
如果想使用多节点环境,可使用yml文件启动5 k/ [( r, G8 H8 Y3 T
version: "2"
services:$ P$ a9 ] K' m
node1:+ [3 n, K1 B, b v
image: eosio/eos
ports:
- "8888:8888" q2 `$ b; \ v! y0 w% t
- "9876:9876"% k$ x! i: u8 c5 X1 b- r
volumes:
- ./node1/data:/opt/eos/bin/data-dir( ^ J0 i0 y6 p
node2:
image: eosio/eos
ports:
- "8889:8889": j3 K" ^0 z- V* D( E
- "9877:9877"
volumes:, j% z/ ~/ @2 v
- ./node2/data:/opt/eos/bin/data-dir* P4 R+ b; H, M3 t
depends_on:
- "node1"' s: s3 r& [+ g1 N! _, {* x4 O7 k
EOSC使用% |# Q& @) E8 N5 _' p% G. V
EOSC是EOS的核心进程EOSD对外暴露的RESTAPI命令行工具。EOSC的使用会利用到一些内置插件,插件在EOSD的配置文件config.ini中进行设置,如与链的交互需要使用’plugin = eos::chain_api_plugin’。为了签署交易并发送到区块链上,需要使用‘plugin = eos::wallet_api_plugin’。为了查询交易和历史记录,需要使用’eos::account_history_api_plugin’ 。 r1 R: w2 C7 [$ b4 {
# Plugin(s) to enable, may be specified multiple times( j1 P6 f$ `. y
plugin =
eos::producer_plugin) u% D% H; ? l4 A; M
plugin =
eos::chain_api_plugin
plugin =
eos::wallet_api_plugin
plugin =* s0 ^/ u; t5 z- p* I
eos::account_history_api_plugin) s& Y3 r& @! a! ^" u& K5 i" _
启动eosd后,可以使用EOSC查询当前的区块链状态
docker exec docker_node1_1 eosc get info8 w- Y. z. B! ^! u9 |/ e Q$ k6 g
{
"head_block_num": 23449,
"last_irreversible_block_num": 23432,, T9 ~5 I+ W) {- _8 |8 S* ~% `
"head_block_id": "00005b996cc85962b28537c3d72696a012d1071638f5e4bad1809cf9afc9abb6",
"head_block_time": "2017-09-29T01:53:33",1 W- w6 ]4 [7 W, J4 c: D2 u' x! Z6 A
"head_block_producer": "initi",
"recent_slots": "1111111111111111111111111111111111111111111111111111111111111111",' N4 K( D* P7 ]3 X
"participation_rate": "1.00000000000000000"# ?5 z& a! Z' d) }
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创建钱包
任何发送到区块链的交易都需要由所有者持有的私钥进行签名。首先,我们需要一个钱包来储存和管理私钥,使用EOSC命令创建一个钱包。
docker exec docker_node1_1 eosc wallet create* J1 V1 E# S! N; x1 N5 }
Creating wallet: default
Save password to use in the future to unlock this wallet.
Without password imported keys will not be retrievable.4 k0 f" ~9 D* a4 {1 X
"PW5JXSxkHqNEwRKCpG2JUTLqkR8SNCBXofkAwaFDLwQkNdqaSXwC8"
命令执行完成,会在eos-walletd中创建一个名为‘default’的钱包,并返回钱包密码。, m4 z, H# X* q
这时候可以查看钱包列表
docker exec docker_node1_1 eosc wallet list2 E! p: I& f% [
Wallets: " P8 q0 Z! Q( M5 g
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"default *"+ z) Q2 s& }# t" g4 i% G' N) A" v
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如果你没有指定钱包名称,默认都操作的是‘default’钱包
将私钥导入钱包 y9 K# x, j& f; F# k
如果你想授权某个钱包可以由某人来管理和控制,需要导入该授权者的私钥。6 |8 G; X5 ?, q6 }
docker exec docker_node1_1 eosc wallet import 5KQwrPbwdL6PhXujxW37FSSQZ1JiwsST4cqQzDeyXtP79zkvFD3
imported private key for:4 q/ A/ a$ H" ^$ |$ x" E0 m' V
EOS6MRyAjQq8ud7hVNYcfnVPJqcVpscN5So8BhtHuGYqET5GDW5CV
导入后,可以查询钱包已经导入的私钥和对应的公钥
docker exec docker_node1_1 eosc wallet keys4 y& ]3 f2 {# C6 J* X- M$ T# w
[[
"EOS6MRyAjQq8ud7hVNYcfnVPJqcVpscN5So8BhtHuGYqET5GDW5CV",
"5KQwrPbwdL6PhXujxW37FSSQZ1JiwsST4cqQzDeyXtP79zkvFD3"2 H3 A% ~& r6 h0 E$ ~6 c* i
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锁定和解锁钱包* L- n) Z, t! k2 t
日常使用,为了保证私钥安全,可临时锁定钱包,锁定后查看钱包列表是不可见的
docker exec docker_node1_1 eosc wallet lock
Locked: 'default'
当想要使用时,可以用创建钱包时生成的密码来解锁钱包
docker exec docker_node1_1 eosc wallet unlock --password PW5KVWrn81Y8PLAb52gr2FyXCanVavcrj9d5TC9C3yKhqq1PJYRPk
Unlocked: 'default'
解锁后,可以在列表重新看到default钱包了3 O; o0 c$ f: W3 i# V
docker exec docker_node1_1 eosc wallet list
Wallets: . _* I( a7 p2 `' [5 X0 p
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"default *"8 w6 r0 ~4 V+ U% B7 ?
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创建账户' a: {! i4 K2 H# ~9 e7 Z
创建账户需要有两组密钥:owner和active。EOS使用EOSC工具来创建密钥对
1)owner key.
Private key:5JRc8XxvodWey4StZ2zzkUhCQhDaHvGMkABtfHzQR2ie4qaUFJ76 E6 j7 ]4 p. ~. e2 L! L
Public key: EOS5mFEdAzxvMkHLQXt2v4naUjnBrPGmzMUCikymqhSR6m7QLGSTB8 l8 u! R" P' q- V( T' o" y
2)active key* E+ f! k, Q2 R1 v
Private key:5KNzFCbToz2a9Hztz9Qen5cyJcM3x5Wpq4GFiTYZgGhzntXdmYo6 U+ Y$ c" z* Y8 ?0 J
Public key: EOS5EdsvESpibWLJxupTqod1nswJnbiXQZuUcLiAWEEsqcZskymeB
EOSC不会保存生成的私钥
因为后续测试智能合约需要,我们创建一个名为currency的账号。目前这个版本,所有的账户都需要用已有账户来创建,所以我们用inita账户的owener key和active key来创建currency。 为了使inita获得发送交易的权限,需要先导入inita的私钥到钱包。(参见私钥导入钱包的步骤)6 N! E9 J, b, o9 {1 g* H
docker exec docker_node1_1 eosc create account inita currency EOS6NpEqWi177VKQkuJQL9V6Y3LqAAp9C2j
执行成功,会输出一串json的交易信息,打印账户创建相关内容7 V4 K( i* S7 i! l4 q! u# h+ j. E
我们可以查询inita可以创建了哪些用户& a0 {+ m0 r) ]
docker exec docker_node1_1 eosc get servants inita
{" a8 I$ b B. }& D) @& b( J
"controlled_accounts": [) L1 h. M! D0 v# T0 R
"currency"
]
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内置转账
创建账户之后,可以查看当前账户的状态,可以看到创建的测试账号没有余额,这样不少功能无法测试,我们需要试着给创建账户添加一些余额, }- s4 e) Q( U/ D) j
docker exec docker_node1_1 eosc get account currency
{- t% j2 N+ L! j, r l w
"name": "currency",
"eos_balance": "0.0000 EOS",; x( }6 y4 D3 k
"staked_balance": "0.0001 EOS",2 g2 M5 l- C% _% Y
"unstaking_balance": "0.0000 EOS",
"last_unstaking_time": "1969-12-31T23:59:59",/ J* M2 z5 n) t/ ~9 a+ H; q
"permissions": [{- `- g% m1 t5 U3 R6 z/ n
"name": "active",
"parent": "owner",4 U* o) ?3 a; N* E; Q
"required_auth": {5 e3 V& x9 c9 f2 [
"threshold": 1,6 w8 Q5 o9 Z+ d \
"keys": [{
"key": "EOS8ff42NMpJUybVj3nwUSnPpc3mMysKxyE4HVJy1E5o3fQv7knWf",% d, N4 j1 f! U+ h
"weight": 1
}
],
"accounts": []* y- O. \- Z" c3 s3 _
}
},{
"name": "owner",
"parent": "owner",
"required_auth": {
"threshold": 1,
"keys": [{
"key": "EOS5fQ4saiHV426EQ7AKrGoD2AVMBYe77bnGSq42JjXBUfipv7o3E",
"weight": 1
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"accounts": []. G" D9 u1 ]: x
}
}
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}; p+ ~* \0 Q0 J7 E
保存全网余额的创世账号是eos,查询余额状态
docker exec docker_node1_1 eosc get account eos
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"name": "eos"," h% C! J8 }7 p4 X) m$ s$ X
"eos_balance": "69000000.0000 EOS",
"staked_balance": "0.0000 EOS",( I1 d3 C1 f) w4 a" j) ?0 l
"unstaking_balance": "0.0000 EOS",
"last_unstaking_time": "1969-12-31T23:59:59",
"permissions": [{, ~( M, j, r) I7 S
"name": "active",- w2 j3 e3 W& I h- w5 h
"parent": "owner",0 K' r- S4 C! e! p
"required_auth": {/ ?( L' u6 ?1 ^! E: w6 M
"threshold": 1,, Q! k2 f- u% C* Z( p# }
"keys": [],
"accounts": []4 G+ \, G( g- ]$ e3 d9 ^
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},{: s6 V2 T) i9 Y* M- V2 H* c2 D+ _3 y
"name": "owner",
"parent": "owner",+ l' a& B- P+ U; _$ Z7 u N
"required_auth": {
"threshold": 1,
"keys": [],
"accounts": []
}, p# \* w W/ t+ F5 `- r
}
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我们可以通过创世块定义的创世账户使用EOSC给当前创建的账户转移余额
docker exec docker_node1_1 eosc transfer inita currency 100000000/ }1 @" q2 R g' a! R. [
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"transaction_id": "59575b8caf08eac7c00eb7483c048f12d0e7abf1ede839c3b2ed41dc6c5c7c5f",
"processed": {
"refBlockNum": 24199,: y9 L% u5 U# T4 Y& i+ @0 B
"refBlockPrefix": 1485651173,; c# `; W7 M/ C# }$ L* ~
"expiration": "2017-09-29T02:31:03",. I% O6 r( N* f) y G: [$ _
"scope": [3 Q* p4 H7 @' V% x# V
"currency",
"inita". p9 ~; n/ H" M; V e9 m
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"signatures": [6 f6 C3 q7 s% u4 ?1 J
"1f14229bdd4bfb927021bf96ff0651c8b0fa5666e9f5cf423a0270a1b91f2d2f690b573e179d8475ce2c6b160f5cd5507d58a44f8f6cf536348584efa8dd62ade0"
]," ~# m2 U+ f1 s H* p+ |; E
"messages": [{5 i5 ~$ G$ \# e3 e, L
"code": "eos",
"type": "transfer",$ o7 C- ^+ p+ ~" I6 ?" ~4 b
"authorization": [{
"account": "inita",8 {+ v! {6 [7 `# ^# J! V2 g1 T5 q# k6 f
"permission": "active"
}
],8 \- X( b) J. j8 x8 ~; j
"data": {
"from": "inita",
"to": "currency",7 K i1 T2 G" i; h6 J
"amount": 100000000,- }# b: e4 h3 h2 w9 X( [4 k5 y- o
"memo": ""
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"hex_data": "000000000093dd740000001e4d75af4600e1f5050000000000"
}
],
"output": [{
"notify": [{
"name": "currency",
"output": {
"notify": [],
"deferred_transactions": []" f' m7 i" A1 L8 Z7 L
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"name": "inita",3 S, f( P4 l" {4 ~; `
"output": {6 `( z% ~& e( m7 i7 X) F# W
"notify": [],
"deferred_transactions": []" M5 R6 r7 d/ }+ |7 d+ V, n5 r
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],
"deferred_transactions": []
}
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}
再通过执行get account 命令,验证余额已经成功转移到创建的账户下
查询交易历史
查询交易历史会使用到插件account_history_api_plugin,我们已经在config.ini中定义
docker exec docker_node1_1 eosc get transaction
如果需要查询一个特定账户最近一次的交易记录2 H" T* S2 U9 ]' b
docker exec docker_node1_1 eosc get transaction inita5 M" C1 j$ [6 Y4 Z" o( s6 S
创建智能合约
官方提供了一个示例合约currency,我们依然使用EOSC来创建并部署智能合约,合约代码位置contracts/currency。
1)为合约创建一个所有者账户。前文已经创建了currency账户; A$ n j" A; |% R& E, g
2)检查区块链上有无同名合约9 S2 e+ q4 _, h" X
docker exec docker_node1_1 eosc get code currency * S) s3 N/ B( s/ s0 P9 e
code hash: 0000000000000000000000000000000000000000000000000000000000000000
3)为了获得部署权限(发送交易请求)需要将currency的active key导入到钱包中
4)部署合约(.wast后缀文件)和他的abi(.abi后缀文件)
docker exec docker_node1_1 eosc set contract currency ../../contracts/currency/currency.wast ../../contracts/currency/currency.abi
Reading WAST...) U4 c! j! [2 {8 ]
Assembling WASM...
Publishing contract...( s0 R, @. T7 l1 Q- _
屏幕打印部署成功相关的信息,并查询合约hash5 @4 u8 i: P; J3 j; @. ?
docker exec docker_node1_1 eosc get code currency
code hash: c4023f74b3c7a3321d1641e4111b13584078fa7265c6ab12e1c19ff7ee800faf$ K p1 b1 s* p/ a0 z0 i. S9 [
调用合约5 M! V; J _$ A/ S5 G7 K3 {9 L* e
在合约部署到区块链上之后,所有的currency余额会分配给我们创建的currency账户。我们可以调用合约测试做一些转账交易。+ i8 ~8 b0 `3 U7 b4 A2 [6 ^
为了更好了解区块链合约的调用方式,我们可以通过.abi查看可以执行的操作列表和消息结构。
docker exec docker_node1_1 eosc get code -a currency.abi currency: g- A( V- S* t( j
code hash: c4023f74b3c7a3321d1641e4111b13584078fa7265c6ab12e1c19ff7ee800faf- P: ^4 f9 k% Z0 S& m/ d5 O- e
saving abi to currency.abi
cat currency.abi #查看) a& \6 {* g2 w# Q6 A9 q1 {
{7 h; s, p: r2 N" v7 v1 t1 N) v
"types": [{) m7 z, Q: t" E0 R8 u K
"newTypeName": "AccountName",
"type": "Name"
}
],) w; T) [! i6 z9 f) r3 T
"structs": [{
"name": "transfer",2 Q* p) L$ g% _# W! ]9 u _
"base": "",
"fields": {& w! _+ }( K J5 s, I* v6 {( W! {
"from": "AccountName",, O. k9 f) o3 t! I A( y
"to": "AccountName",
"amount": "UInt64"# ^* u% W; t' F8 i4 g, X% G
}
},{2 y, [9 u3 s- {) {; l& u/ O e7 n
"name": "account",
"base": "",
"fields": {
"account": "Name",; L; W" E& k2 s: ?& M, X! A1 m8 @9 H
"balance": "UInt64") x; T8 c" ?' e. g. g. O& b
}( s. [* Z5 E, s& ~: e. H4 S8 A
}
],
"actions": [{! x. H' N. [0 q% ~" j2 c4 G2 h8 n
"action": "transfer",
"type": "transfer"' e3 j+ E9 @$ t/ ^- T s
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],
"tables": [{& a) I N% w4 J& j
"table": "account",
"type": "account",7 G( D/ m( W% l3 s$ p: w$ S
"indextype": "i64",
"keynames" : ["account"],
"keytypes" : ["Name"]
}, k9 e/ m. Z) s W$ T
]
}! S q" Y5 z: W5 I
通过上面的abi我们可以看到currency合约可以执行transfer操作,消息格式为from,to和amount。我们调用合约从currency账户转移50个余额到inita账户
docker exec docker_node1_1 eosc push message currency transfer '{"from":"currency","to":"inita","amount":50}' --scop
执行完成,我们查询余额验证结果
docker exec docker_node1_1 eosc get table inita currency account
{2 E3 Q4 ]6 J/ R9 `) Z
"rows": [{
"account": "account",
"balance": 50 + E" X" ~0 ?- b/ v, e
}
],' A- l+ K& l4 C [. S& S" z$ ?8 Z( N
"more": false: F" @/ w7 K9 M
}
docker exec docker_node1_1 eosc get table currency currency account- `) n O, Z* n2 N: \1 v1 V
{. B2 b- f% X* ^+ Z/ ^' J4 C$ ?
"rows": [{0 h# x( ~% h% G# p p
"account": "account",* ?' Q/ K; g+ T$ R
"balance": 9999999505 y; y8 _" m. j" |5 e4 ~3 p7 F9 |
}
],+ V$ u+ m7 n. q8 w/ c
"more": false, _& {, h1 [4 y0 E9 k9 u
}
余额不足的账户尝试转账,会提示失败
docker exec docker_node1_1 eosc push message currency transfer '{"from":"tester","to":"inita","amount":50}'-S inita -S tester -p tester@active) U9 A; x3 y2 r: c7 u% N
3543610ms thread-0 main.cpp:271 operator() ] Converting argument to binary...( W# ?2 o' y6 s6 }& t5 u* \' U
3543615ms thread-0 main.cpp:311 main ] Failed with error: 10 assert_exception: Assert Exception' ` V5 `" M2 [* z3 d
status_code == 200: Error : 10 assert_exception: Assert Exception( b) T6 h) o# K5 O
test: assertion failed: integer underflow subtracting token balance# O9 _# \ x% M
{"s":"integer underflow subtracting token balance","ptr":176} thread-1 wasm_interface.cpp:248 assertnonei32i32 [...snipped...]
查询合约1 ?- }( \3 J( c. D: s
如上文验证步骤,在调用完合约后,可以通过查询表来验证每个帐户持有的余额。
docker exec docker_node1_1 eosc get table currency currency account
连接特定节点& V8 i$ B6 d+ H5 N; N
默认情况下,EOSC连接本地端口8888的节点。可以通过指定主机地址和端口来连接其他EOSD节点。同样的,钱包服务也可以指定特定的主机地址和端口。
docker exec docker_node1_1 eosc --host --port
链接独立钱包服务) t5 J4 m1 i- B/ s
除了使用EOSD内置的钱包服务,也可以独立部署钱包服务
docker exec docker_node1_1 eos-walletd --http-server-endpoint host:port
调用独立钱包服务需要添加如下选项
docker exec docker_node1_1 eosc --wallet-host --wallet-port7 P6 ^6 P' Q( d& K
免签名验证
开发者如果需要快速测试功能,可以跳过节点签名的步骤,这样可以解耦密码学的问题而关注应用功能# W9 t1 z% e' ~" Q9 O
启动时使用特定参数
eosd --skip-transaction-signatures
EOSC调用时添加-s 选项9 r$ P, S3 B# l1 s3 i* f$ R" S4 m( S5 r
docker exec docker_node1_1 eosc -s
其他RPC调用
EOSD RPC 包含通过HTTP RPC与eosd和注册其上的插件进行调用的方式.; t- G8 d1 k7 E: ]2 ^7 `% n1 F
1)区块链API 配置
想要查询eosd信息需要启用plugin = eos::chain_api_plugin插件并添加至config.ini中$ z. i W/ A9 }" e; @
2)get_info接口用于查询区块链的基础信息
curl http://127.0.0.1:8888/v1/chain/get_info 0 x) S' M5 N8 y7 ]& G2 M1 z$ ]- C
返回结果如下:
{"head_block_num":25028,"last_irreversible_block_num":25014,"head_block_id":"000061c443dd3e85932c442a8e5176b7ac822a0f6d09d034298f508e71c5ae6c","head_block_time":"2017-09-29T03:12:30","head_block_producer":"initm","recent_slots":"1111111111111111111111111111111111111111111111111111111111111111","participation_rate":"1.00000000000000000"}
get_block接口用于查询区块相关信息
curl http://localhost:8888/v1/chain/get_block -X POST -d '{"block_num_or_id":5}'$ x1 H1 S1 P% ?1 O7 W; n* d
curl http://localhost:8888/v1/chain/get_block -X POST -d '{"block_num_or_id":0000000445a9f27898383fd7de32835d5d6a978cc14ce40d9f327b5329de796b}'
返回结果如下:. b4 y: G+ Z/ {, Z
{"previous":"000000047aba47492d2143beebfdfba171192970a0f9248f0408a8614ff42dca","timestamp":"2017-09-28T06:21:21","transaction_merkle_root":"0000000000000000000000000000000000000000000000000000000000000000","producer":"initf","producer_changes":[],"producer_signature":"1f25a5b592b7f605ffdbd1cba90497e94b3e1c0e5805b70851de6875e0f33e20dd1f363cd1fcfd2dc8421fb918d694d260e255956cc7f8f554fa0be01d805a84ed","cycles":[],"id":"00000005bf39fd177fc2ea8ba6540d5f31e8b07218f054016123a34b16d0b30e","block_num":5,"refBlockPrefix":2347418239}! c5 y" g. x9 Z" }! ^
4)push_transaction接口,调用合约交易
该调用为JSON格式并会将结果更新到区块链上* T" h6 {' A7 _: N' G
执行正确的结果返回! B3 g {# s: k# E- Z- R: ^
返回 HTTP 200 和交易ID号
{
'transaction_id' : "..." 0 g5 ~3 ~7 |. B/ V z$ w
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执行错误的结果返回,一般为400错误(参数错误)或者500错误
HTTP/1.1 500 Internal Server Error
Content-Length: 1466, @# y1 F7 ^# D) X; N8 {! a
...error message.., Z, }1 O {- G" S+ |+ Q' ?9 Q" _
push_transaction 调用方法: F q e. f4 V2 u' m
curl http://localhost:8888/v1/chain/push_transaction -X POST -d '{"refBlockNum":"5","refBlockPrefix":"27728114","expiration":"2017-07-18T22:28:49","scope":["initb","initc"],"messages":[{"code":"currency","type":"transfer","recipients":["initb","initc"],"authorization":[{"account":"initb","permission":"active"}],"data":"c9252a0000000000050f14dc29000000d00700000000000008454f530000000000"}],"signatures":[],"authorizations":[]}'
此示例模拟一个转账交易。 refBlockNum和refBlockPrefix使用的前例block查询的结果
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