超级账本入门(三): Hyperledger 应用案例

双方交易案例

两方(如 a 和 b)之间进行价值的转移。

集群启动后,进入一个 VP 节点。以 pbft 模式为例,节点名称为 pbft_vp0_1

$ docker exec -it pbft_vp0_1 bash

部署 chaincode example02。

$ peer chaincode deploy -p github.com/hyperledger/fabric/examples/chaincode/go/chaincode_example02 -c '{"Function":"init", "Args": ["a","100", "b", "200"]}'
03:08:44.740 [chaincodeCmd] chaincodeDeploy -> INFO 001 Deploy result: type:GOLANG chaincodeID:<path:"github.com/hyperledger/fabric/examples/chaincode/go/chaincode_example02" name:"ee5b24a1f17c356dd5f6e37307922e39ddba12e5d2e203ed93401d7d05eb0dd194fb9070549c5dc31eb63f4e654dbd5a1d86cbb30c48e3ab1812590cd0f78539" > ctorMsg:<args:"init" args:"a" args:"100" args:"b" args:"200" >
Deploy chaincode: ee5b24a1f17c356dd5f6e37307922e39ddba12e5d2e203ed93401d7d05eb0dd194fb9070549c5dc31eb63f4e654dbd5a1d86cbb30c48e3ab1812590cd0f78539
03:08:44.740 [main] main -> INFO 002 Exiting.....

返回 chaincode id 为 ee5b24a1f17c356dd5f6e37307922e39ddba12e5d2e203ed93401d7d05eb0dd194fb9070549c5dc31eb63f4e654dbd5a1d86cbb30c48e3ab1812590cd0f78539,后面将用这个 id 来标识这次交易。为了方便,把它记录到环境变量 CC_ID 中。

$ CC_ID="ee5b24a1f17c356dd5f6e37307922e39ddba12e5d2e203ed93401d7d05eb0dd194fb9070549c5dc31eb63f4e654dbd5a1d86cbb30c48e3ab1812590cd0f78539"

部署成功后,系统中会自动生成几个 chaincode 容器,例如

CONTAINER ID        IMAGE                                                                                                                                      COMMAND                  CREATED             STATUS              PORTS                                   NAMES
e86c26bad76f        dev-vp1-ee5b24a1f17c356dd5f6e37307922e39ddba12e5d2e203ed93401d7d05eb0dd194fb9070549c5dc31eb63f4e654dbd5a1d86cbb30c48e3ab1812590cd0f78539   "/opt/gopath/bin/ee5b"   2 minutes ago       Up 2 minutes                                                dev-vp1-ee5b24a1f17c356dd5f6e37307922e39ddba12e5d2e203ed93401d7d05eb0dd194fb9070549c5dc31eb63f4e654dbd5a1d86cbb30c48e3ab1812590cd0f78539
597ebaf929a0        dev-vp2-ee5b24a1f17c356dd5f6e37307922e39ddba12e5d2e203ed93401d7d05eb0dd194fb9070549c5dc31eb63f4e654dbd5a1d86cbb30c48e3ab1812590cd0f78539   "/opt/gopath/bin/ee5b"   2 minutes ago       Up 2 minutes                                                dev-vp2-ee5b24a1f17c356dd5f6e37307922e39ddba12e5d2e203ed93401d7d05eb0dd194fb9070549c5dc31eb63f4e654dbd5a1d86cbb30c48e3ab1812590cd0f78539
8748a3b47312        dev-vp3-ee5b24a1f17c356dd5f6e37307922e39ddba12e5d2e203ed93401d7d05eb0dd194fb9070549c5dc31eb63f4e654dbd5a1d86cbb30c48e3ab1812590cd0f78539   "/opt/gopath/bin/ee5b"   2 minutes ago       Up 2 minutes                                                dev-vp3-ee5b24a1f17c356dd5f6e37307922e39ddba12e5d2e203ed93401d7d05eb0dd194fb9070549c5dc31eb63f4e654dbd5a1d86cbb30c48e3ab1812590cd0f78539
cf6e762f6a2e        dev-vp0-ee5b24a1f17c356dd5f6e37307922e39ddba12e5d2e203ed93401d7d05eb0dd194fb9070549c5dc31eb63f4e654dbd5a1d86cbb30c48e3ab1812590cd0f78539   "/opt/gopath/bin/ee5b"   2 minutes ago       Up 2 minutes                                                dev-vp0-ee5b24a1f17c356dd5f6e37307922e39ddba12e5d2e203ed93401d7d05eb0dd194fb9070549c5dc31eb63f4e654dbd5a1d86cbb30c48e3ab1812590cd0f78539

查询 a 手头的价值,为初始值 100。

+
$ peer chaincode query -n ${CC_ID} -c '{"Function": "query", "Args": ["a"]}'
03:22:31.420 [chaincodeCmd] chaincodeInvokeOrQuery -> INFO 001 Successfully queried transaction: chaincodeSpec:<type:GOLANG chaincodeID:<name:"ee5b24a1f17c356dd5f6e37307922e39ddba12e5d2e203ed93401d7d05eb0dd194fb9070549c5dc31eb63f4e654dbd5a1d86cbb30c48e3ab1812590cd0f78539" > ctorMsg:<args:"query" args:"a" > >
Query Result: 100
03:22:31.420 [main] main -> INFO 002 Exiting.....

a 向 b 转账 10 元。

$ peer chaincode invoke -n ${CC_ID} -c '{"Function": "invoke", "Args": ["a", "b", "10"]}'
03:22:57.345 [chaincodeCmd] chaincodeInvokeOrQuery -> INFO 001 Successfully invoked transaction: chaincodeSpec:<type:GOLANG chaincodeID:<name:"ee5b24a1f17c356dd5f6e37307922e39ddba12e5d2e203ed93401d7d05eb0dd194fb9070549c5dc31eb63f4e654dbd5a1d86cbb30c48e3ab1812590cd0f78539" > ctorMsg:<args:"invoke" args:"a" args:"b" args:"10" > > (fc298ffb-c763-4ed0-9da2-072de2ab20b1)
03:22:57.345 [main] main -> INFO 002 Exiting.....

查询 a 手头的价值,为新的值 90。

“`sh $ peer chaincode query -n ${CC_ID} -c ‘{“Function”: “query”, “Args”: [“a”]}’ 03:23:33.045 [chaincodeCmd] chaincodeInvokeOrQuery -> INFO 001 Successfully queried transaction: chaincodeSpec: ctorMsg:<args:”query” args:”a”=””> > Query Result: 90 03:23:33.045 [main] main -> INFO 002 Exiting….. ···

为您推荐

发表评论

8条评论

  1. Pingback: Www.CryptoInvest.is
  2. Pingback: Lace Front Wigs
  3. Pingback: try these out
  4. Pingback: 카지노 먹튀
  5. Pingback: Super essays
  6. Pingback: ts911betsoccer.com
  7. Pingback: bandar togel online
  8. Pingback: home decoration