Hyperledger Fabric SDK 示例 fabric-samples-《balance-transfer》之简介

前言

官网的fabric-samples示例在不断的变更中，本文以及后续系列文章是以作者当时下载的版本来讲述的，请各位知晓。如果有不一致的地方以官网现在的示例为准。

这个示例是在fabric-samples里面，主要介绍了如何使用SDK与fabric网络进行交互。这个示例是用node.js来写的，定义了与fabric网络交互的各种操作，在后续文章中我们会一一详解这些操作。现在我们来看看目录总体结构。

balance-transfer├── app  // 与fabric网络交互的实现│   ├── create-channel.js│   ├── helper.js│   ├── install-chaincode.js│   ├── instantiate-chaincode.js│   ├── invoke-transaction.js│   ├── join-channel.js│   ├── network-config-aws.json│   ├── network-config.json│   └── query.js├── app.js   // 定义与fabric网络交互的API├── artifacts  // 启动fabric网络需要的资料│   ├── base.yaml│   ├── channel│   ├── docker-compose.yaml│   └── src├── config.js├── config.json├── node_modules│   └── .......├── package.json├── package-lock.json├── README.md├── runApp.sh└── testAPIs.sh

运行示例

下载示例

git clone https://github.com/hyperledger/fabric-samples.gitcd fabric-samples

启动脚本

进入到balance-transfer目录，运行runApp.sh脚本，fabric网络以及node服务都会运行起来：

CONTAINER ID        IMAGE                        COMMAND                  CREATED             STATUS              PORTS                                            NAMESef2334d2fe02        hyperledger/fabric-peer      "peer node start"        3 minutes ago       Up 3 minutes        0.0.0.0:8051->7051/tcp, 0.0.0.0:8053->7053/tcp   peer0.org2.example.comac9021864ea5        hyperledger/fabric-peer      "peer node start"        3 minutes ago       Up 3 minutes        0.0.0.0:8056->7051/tcp, 0.0.0.0:8058->7053/tcp   peer1.org2.example.com645a9da7b7b9        hyperledger/fabric-peer      "peer node start"        3 minutes ago       Up 3 minutes        0.0.0.0:7056->7051/tcp, 0.0.0.0:7058->7053/tcp   peer1.org1.example.com25301acccda5        hyperledger/fabric-peer      "peer node start"        3 minutes ago       Up 3 minutes        0.0.0.0:7051->7051/tcp, 0.0.0.0:7053->7053/tcp   peer0.org1.example.com0d7846059984        hyperledger/fabric-orderer   "orderer"                3 minutes ago       Up 3 minutes        0.0.0.0:7050->7050/tcp                           orderer.example.com5e62de6f1387        hyperledger/fabric-ca        "sh -c 'fabric-ca-..."   3 minutes ago       Up 3 minutes        0.0.0.0:8054->7054/tcp                           ca_peerOrg2feb37a20e3b7        hyperledger/fabric-ca        "sh -c 'fabric-ca-..."   3 minutes ago       Up 3 minutes        0.0.0.0:7054->7054/tcp                           ca_peerOrg1

============== node modules installed already =============......constructor, no super class specified, using config: fabric-client/lib/impl/FileKeyValueStore.js[2017-10-16 11:00:42.213] [INFO] SampleWebApp - ****************** SERVER STARTED ************************[2017-10-16 11:00:42.214] [INFO] SampleWebApp - **************  http://localhost:4000  ******************

测试脚本

运行testAPIs.sh测试脚本，使用API来操作fabric网络，它主要做了：

• 创建channel
• 安装chaincode
• 初始化chaincode
• 执行chaincode
• 各种查询

运行结果：

POST request Enroll on Org1  ...{"success":true,"secret":"xDfluXIPURbu","message":"Jim enrolled Successfully","token":"eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJleHAiOjE1MDgxNTkyMjQsInVzZXJuYW1lIjoiSmltIiwib3JnTmFtZSI6Im9yZzEiLCJpYXQiOjE1MDgxMjMyMjR9.rE5UuViSzmDcdHNZRXt22izpopY5eVkJ7YbfXILjSQk"}ORG1 token is eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJleHAiOjE1MDgxNTkyMjQsInVzZXJuYW1lIjoiSmltIiwib3JnTmFtZSI6Im9yZzEiLCJpYXQiOjE1MDgxMjMyMjR9.rE5UuViSzmDcdHNZRXt22izpopY5eVkJ7YbfXILjSQkPOST request Enroll on Org2 ...{"success":true,"secret":"rLXMcohUQOeR","message":"Barry enrolled Successfully","token":"eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJleHAiOjE1MDgxNTkyMjUsInVzZXJuYW1lIjoiQmFycnkiLCJvcmdOYW1lIjoib3JnMiIsImlhdCI6MTUwODEyMzIyNX0.FJBM3okCaL7ZHKDtX0QdhJjniRq9rCXekp4IQKd6RbI"}ORG2 token is eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJleHAiOjE1MDgxNTkyMjUsInVzZXJuYW1lIjoiQmFycnkiLCJvcmdOYW1lIjoib3JnMiIsImlhdCI6MTUwODEyMzIyNX0.FJBM3okCaL7ZHKDtX0QdhJjniRq9rCXekp4IQKd6RbIPOST request Create channel  ...{"success":true,"message":"Channel 'mychannel' created Successfully"}POST request Join channel on Org1{"success":true,"message":"Successfully joined peers in organization org1 to the channel 'mychannel'"}POST request Join channel on Org2{"success":true,"message":"Successfully joined peers in organization org2 to the channel 'mychannel'"}POST Install chaincode on Org1Successfully Installed chaincode on organization org1POST Install chaincode on Org2Successfully Installed chaincode on organization org2POST instantiate chaincode on peer1 of Org1Chaincode Instantiation is SUCCESSPOST invoke chaincode on peers of Org1 and Org2Transacton ID is eb058850e7247ad0bc25ec57ced1cd1255666c390ca0c9300858ce6e57175221GET query chaincode on peer1 of Org1a now has 90 after the moveGET query Block by blockNumber{"header":{"number":{"low":1,"high":0,"unsigned":true},"previous_hash":"d4630656e5704810b3637b25b94ce95a47d0929602b9d241e37a58176848a667","data_hash":"d3625dbc705806e98a309ae8c324e8f6d807914cabb31cb1973f60eda9bd21e1"},"data":{"data":[{"signature":{"type":"Buffer","data":[48,69,2,33,0,205,121,109,25,5,213,63,198,97,159,42,141,61,89,125,142,69,222,114,100,176,190,3,36,68,120,70,81,11,245,175,55,2,32,5,248,239,184,51,179,125,45,122,20,26,149,43,72,41,51,169,185,186,102,83,195,144,32,162,158,45,255,89,214,254,70]},"payload":{"header":{"channel_header":{"type":"ENDORSER_TRANSACTION","version":3,"timestamp":"Mon Oct 16 2017 11:07:12 GMT+0800 (CST)","channel_id":"mychannel","tx_id":"67b9645f86e5085516f86c4cdbd117614bf7b597889c5ff778e5a9aee6291b02","epoch":0,"extension":{"type":"Buffer","data":[18,6,18,4,108,115,99,99]}},"signature_header":{"creator":{"Mspid":"Org1MSP","IdBytes":"-----BEGIN 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CERTIFICATE-----\n"},"nonce":{"type":"Buffer","data":[209,157,141,55,219,50,184,51,248,42,28,75,15,107,80,10,229,77,244,240,72,74,253,220]}},"payload":{"chaincode_proposal_payload":{"input":{"type":"Buffer","data":[10,115,8,1,18,6,18,4,108,115,99,99,26,103,10,6,100,101,112,108,111,121,10,9,109,121,99,104,97,110,110,101,108,10,40,10,38,8,1,18,10,18,4,109,121,99,99,26,2,118,48,26,22,10,4,105,110,105,116,10,1,97,10,3,49,48,48,10,1,98,10,3,50,48,48,10,40,18,12,18,10,8,1,18,2,8,0,18,2,8,1,26,11,18,9,10,7,79,114,103,49,77,83,80,26,11,18,9,10,7,79,114,103,50,77,83,80]}},"action":{"proposal_response_payload":{"proposal_hash":"4e4159787b219394892fa4ec007a34c16d3aa44cdf4ded5f56bbd1e25b98a327","extension":{"results":{"data_model":0,"ns_rwset":[{"namespace":"lscc","rwset":{"reads":[{"key":"mycc","version":null}],"range_queries_info":[],"writes":[{"key":"mycc","is_delete":false,"value":"\n\u0004mycc\u0012\u0002v0\u001a\u0004escc\"\u0004vscc*(\u0012\f\u0012\n\b\u0001\u0012\u0002\b\u0000\u0012\u0002\b\u0001\u001a\u000b\u0012\t\n\u0007Org1MSP\u001a\u000b\u0012\t\n\u0007Org2MSP2D\n 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-----\n"},"signature":{"type":"Buffer","data":[48,68,2,32,53,175,47,213,145,239,141,185,232,177,37,83,215,130,19,85,244,146,114,234,151,107,4,87,218,179,100,59,91,21,99,215,2,32,35,200,206,164,189,219,49,64,112,47,245,92,104,49,133,67,155,63,166,39,119,44,142,233,220,133,13,98,196,52,174,210]}},{"endorser":{"Mspid":"Org1MSP","IdBytes":"-----BEGIN 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-----\n"},"signature":{"type":"Buffer","data":[48,68,2,32,49,202,231,101,244,203,225,202,230,130,68,144,86,215,248,29,212,45,30,53,252,235,47,97,196,34,47,54,244,61,235,138,2,32,108,206,246,139,231,118,64,222,217,72,255,122,247,140,42,179,245,0,121,247,29,144,10,85,126,108,64,239,40,210,95,55]}}]}}}]}}}]},"metadata":{"metadata":[{"value":"","signatures":[{"signature_header":{"creator":{"Mspid":"OrdererMSP","IdBytes":"-----BEGIN 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-----\n"},"nonce":{"type":"Buffer","data":[42,196,94,140,132,249,107,239,115,100,207,74,238,65,73,153,42,76,71,99,33,135,138,160]}},"signature":{"type":"Buffer","data":[48,68,2,32,37,118,87,237,154,168,159,238,222,217,182,188,97,70,172,216,74,24,177,18,107,78,24,11,254,90,198,6,178,16,8,246,2,32,12,197,28,86,154,195,54,13,130,206,7,201,233,127,14,90,40,255,112,90,112,86,172,78,150,121,153,145,255,183,56,254]}}]},{"value":{"index":{"low":0,"high":0,"unsigned":true}},"signatures":[{"signature_header":{"creator":{"Mspid":"OrdererMSP","IdBytes":"-----BEGIN -----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\n7A==\n-----END -----\n"},"nonce":{"type":"Buffer","data":[101,237,86,161,237,72,245,90,132,37,151,195,55,93,252,137,201,244,205,55,168,50,105,215]}},"signature":{"type":"Buffer","data":[48,69,2,33,0,133,132,112,132,183,121,20,114,203,82,140,195,26,111,80,190,191,145,27,38,81,59,70,187,47,226,3,206,49,48,113,53,2,32,116,89,154,23,170,133,67,107,183,164,180,171,192,220,85,198,248,143,26,64,156,131,69,158,233,118,28,98,163,211,78,234]}}]},[0]]}}GET query Transaction by TransactionID{"validationCode":0,"transactionEnvelope":{"signature":{"type":"Buffer","data":[48,69,2,33,0,177,26,37,152,112,224,187,240,114,88,79,53,58,177,81,95,71,89,200,84,235,71,91,237,204,186,56,181,195,98,164,215,2,32,102,121,110,5,234,233,1,94,99,238,162,8,112,138,154,142,145,133,56,33,199,34,26,132,60,75,208,125,235,250,233,124]},"payload":{"header":{"channel_header":{"type":"ENDORSER_TRANSACTION","version":3,"timestamp":"Mon Oct 16 2017 11:07:40 GMT+0800 (CST)","channel_id":"mychannel","tx_id":"eb058850e7247ad0bc25ec57ced1cd1255666c390ca0c9300858ce6e57175221","epoch":0,"extension":{"type":"Buffer","data":[18,6,18,4,109,121,99,99]}},"signature_header":{"creator":{"Mspid":"Org1MSP","IdBytes":"-----BEGIN CERTIFICATE-----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\nsX26SgxX8YIiKWpL0t+OYEqjsw==\n-----END CERTIFICATE-----\n"},"nonce":{"type":"Buffer","data":[169,122,192,203,43,77,68,42,128,240,8,81,90,35,63,156,13,236,81,59,126,148,200,17]}}},"data":{"actions":[{"header":{"creator":{"Mspid":"Org1MSP","IdBytes":"-----BEGIN CERTIFICATE-----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\nsX26SgxX8YIiKWpL0t+OYEqjsw==\n-----END CERTIFICATE-----\n"},"nonce":{"type":"Buffer","data":[169,122,192,203,43,77,68,42,128,240,8,81,90,35,63,156,13,236,81,59,126,148,200,17]}},"payload":{"chaincode_proposal_payload":{"input":{"type":"Buffer","data":[10,28,8,1,18,6,18,4,109,121,99,99,26,16,10,4,109,111,118,101,10,1,97,10,1,98,10,2,49,48]}},"action":{"proposal_response_payload":{"proposal_hash":"36c833a60246db1941e7c403e1e3d3cf2f240bdc40c210da80278d463fb094c6","extension":{"results":{"data_model":0,"ns_rwset":[{"namespace":"lscc","rwset":{"reads":[{"key":"mycc","version":{"block_num":{"low":1,"high":0,"unsigned":true},"tx_num":{"low":0,"high":0,"unsigned":true}}}],"range_queries_info":[],"writes":[]}},{"namespace":"mycc","rwset":{"reads":[{"key":"a","version":{"block_num":{"low":1,"high":0,"unsigned":true},"tx_num":{"low":0,"high":0,"unsigned":true}}},{"key":"b","version":{"block_num":{"low":1,"high":0,"unsigned":true},"tx_num":{"low":0,"high":0,"unsigned":true}}}],"range_queries_info":[],"writes":[{"key":"a","is_delete":false,"value":"90"},{"key":"b","is_delete":false,"value":"210"}]}}]},"events":{"chaincode_id":"","tx_id":"","event_name":"","payload":{"type":"Buffer","data":[]}},"response":{"status":200,"message":"","payload":""}}},"endorsements":[{"endorser":{"Mspid":"Org1MSP","IdBytes":"-----BEGIN -----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\nHE6DFYvvBCUnicUh\n-----END -----\n"},"signature":{"type":"Buffer","data":[48,68,2,32,63,184,99,69,87,244,62,157,237,78,167,227,25,195,112,215,214,197,244,114,183,91,98,30,135,103,97,82,53,102,214,64,2,32,96,34,207,210,245,68,136,213,125,235,146,198,246,248,179,48,130,115,48,159,54,172,212,58,1,142,37,211,118,47,195,173]}},{"endorser":{"Mspid":"Org1MSP","IdBytes":"-----BEGIN -----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\nWMnq87KyqMLc6iRaJx0=\n-----END -----\n"},"signature":{"type":"Buffer","data":[48,68,2,32,76,217,173,123,31,20,202,218,178,182,34,209,106,247,120,120,18,17,185,185,79,107,181,134,40,40,117,89,215,41,176,186,2,32,1,76,239,78,145,183,212,170,26,111,86,80,140,178,212,198,166,201,33,28,86,181,198,25,15,79,227,97,43,56,101,216]}}]}}}]}}}}GET query ChainInfo{"height":{"low":3,"high":0,"unsigned":true},"currentBlockHash":{"buffer":{"type":"Buffer","data":[8,3,18,32,163,148,207,219,172,100,216,50,0,14,18,240,253,118,10,33,155,0,195,60,214,175,29,159,16,220,140,111,52,191,57,88,26,32,58,119,237,8,196,95,11,249,0,137,153,78,78,255,51,23,180,39,52,42,188,123,150,38,169,155,111,170,90,53,202,228]},"offset":4,"markedOffset":-1,"limit":36,"littleEndian":true,"noAssert":false},"previousBlockHash":{"buffer":{"type":"Buffer","data":[8,3,18,32,163,148,207,219,172,100,216,50,0,14,18,240,253,118,10,33,155,0,195,60,214,175,29,159,16,220,140,111,52,191,57,88,26,32,58,119,237,8,196,95,11,249,0,137,153,78,78,255,51,23,180,39,52,42,188,123,150,38,169,155,111,170,90,53,202,228]},"offset":38,"markedOffset":-1,"limit":70,"littleEndian":true,"noAssert":false}}GET query Installed chaincodes["name: mycc, version: v0, path: github.com/example_cc"]GET query Instantiated chaincodes["name: mycc, version: v0, path: github.com/example_cc"]GET query Channels{"channels":[{"channel_id":"mychannel"}]}Total execution time : 39 secs ...