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转载请标明出处：
https://blog.csdn.net/qq_27818541/article/details/78361292
本文出自:【BigManing的博客】
前言
使用sdk安装chaincode时需要指定以下参数
- chaincode名称
- chaincode版本
- chaincode文件路径
在本文示例中传递的chaincode的路径为github.com/example_cc ，系统会加载gopath路径下src目录里面的github.com/example_cc下面的chaincode文件。设置gopath的操作，在具体实现里面提及到。
路由
app.js
//在指定peer上安装chaincode
app.post('/chaincodes', function(req, res) {
//1 校验参数
logger.debug('==================== INSTALL CHAINCODE ==================');
var peers = req.body.peers;
var chaincodeName = req.body.chaincodeName;
var chaincodePath = req.body.chaincodePath;
var chaincodeVersion = req.body.chaincodeVersion;
//需要安装chaincode的peer
logger.debug('peers : ' + peers); // target peers list
//指定chaincode名称
logger.debug('chaincodeName : ' + chaincodeName);
//chaincode路径
logger.debug('chaincodePath : ' + chaincodePath);
//chaincode版本
logger.debug('chaincodeVersion : ' + chaincodeVersion);
if (!peers || peers.length == 0) {
res.json(getErrorMessage('\'peers\''));
return;
}
if (!chaincodeName) {
res.json(getErrorMessage('\'chaincodeName\''));
return;
}
if (!chaincodePath) {
res.json(getErrorMessage('\'chaincodePath\''));
return;
}
if (!chaincodeVersion) {
res.json(getErrorMessage('\'chaincodeVersion\''));
return;
}
// 2 由install-chaincode.js来具体实现
install.installChaincode(peers, chaincodeName, chaincodePath, chaincodeVersion, req.username, req.orgname)
.then(function(message) {
res.send(message);
});
});这个路由只做了两件事
- 必要参数校验
- 调用封装好的
installChaincode方法来具体实现安装chaincode
具体实现
install-chaincode.js
var path = require('path');
var fs = require('fs');
var util = require('util');
var config = require('../config.json');
var helper = require('./helper.js');
var logger = helper.getLogger('install-chaincode');
var tx_id = null;
var installChaincode = function(peers, chaincodeName, chaincodePath,
chaincodeVersion, username, org) {
logger.debug(
'\n============ Install chaincode on organizations ============\n');
// 设置gopath变量路径指向balance-transfer/artifacts/ 加载chaincode使用
helper.setupChaincodeDeploy();
var channel = helper.getChannelForOrg(org);
var client = helper.getClientForOrg(org);
//1 获取该组织的admin
return helper.getOrgAdmin(org).then((user) => {
//2 封装request
var request = {
targets: helper.newPeers(peers, org), // peer对应的rpc地址
chaincodePath: chaincodePath,
chaincodeId: chaincodeName,
chaincodeVersion: chaincodeVersion
};
//3 发送请求，安装chaincode
return client.installChaincode(request);
}, (err) => {
logger.error('Failed to enroll user \'' + username + '\'. ' + err);
throw new Error('Failed to enroll user \'' + username + '\'. ' + err);
}).then((results) => {
var proposalResponses = results[0];
var proposal = results[1];
var all_good = true;
// 4 处理返回的结果
for (var i in proposalResponses) {
let one_good = false;
if (proposalResponses && proposalResponses[i].response &&
proposalResponses[i].response.status === 200) {
one_good = true;
logger.info('install proposal was good');
} else {
logger.error('install proposal was bad');
}
all_good = all_good & one_good;
}
// 是否都安装成功
if (all_good) {
logger.info(util.format(
'Successfully sent install Proposal and received ProposalResponse: Status - %s',
proposalResponses[0].response.status));
logger.debug('\nSuccessfully Installed chaincode on organization ' + org +
'\n');
return 'Successfully Installed chaincode on organization ' + org;
} else {
logger.error(
'Failed to send install Proposal or receive valid response. Response null or status is not 200. exiting...'
);
return 'Failed to send install Proposal or receive valid response. Response null or status is not 200. exiting...';
}
}, (err) => {
logger.error('Failed to send install proposal due to error: ' + err.stack ?
err.stack : err);
throw new Error('Failed to send install proposal due to error: ' + err.stack ?
err.stack : err);
});
};
exports.installChaincode = installChaincode;
基本流程
API访问
github.com/example_cc 这个路径会从gopath环境变量中查找。
echo "POST Install chaincode on Org1"
echo
curl -s -X POST \
http://localhost:4000/chaincodes \
-H "authorization: Bearer $ORG1_TOKEN" \
-H "content-type: application/json" \
-d '{
"peers": ["peer1", "peer2"],
"chaincodeName":"mycc",
"chaincodePath":"github.com/example_cc",
"chaincodeVersion":"v0"
}'
echo
echo
控制台打印：
POST Install chaincode on Org1
Successfully Installed chaincode on organization org1
后台打印：
[2017-10-16 11:07:12.352] [DEBUG] SampleWebApp - Decoded from JWT token: username - Jim, orgname - org1
[2017-10-16 11:07:12.352] [DEBUG] SampleWebApp - ==================== INSTALL CHAINCODE ==================
[2017-10-16 11:07:12.352] [DEBUG] SampleWebApp - peers : peer1,peer2
[2017-10-16 11:07:12.352] [DEBUG] SampleWebApp - chaincodeName : mycc
[2017-10-16 11:07:12.353] [DEBUG] SampleWebApp - chaincodePath : github.com/example_cc
[2017-10-16 11:07:12.353] [DEBUG] SampleWebApp - chaincodeVersion : v0
[2017-10-16 11:07:12.353] [DEBUG] install-chaincode -
============ Install chaincode on organizations ============
[2017-10-16 11:07:12.353] [DEBUG] Helper - [crypto_ecdsa_aes]: constructor, keySize: 256
[2017-10-16 11:07:12.354] [DEBUG] Helper - [crypto_ecdsa_aes]: Hash algorithm: SHA2, hash output size: 256
[2017-10-16 11:07:12.354] [DEBUG] Helper - [utils.CryptoKeyStore]: CryptoKeyStore, constructor - start
[2017-10-16 11:07:12.354] [DEBUG] Helper - [utils.CryptoKeyStore]: constructor, no super class specified, using config: fabric-client/lib/impl/FileKeyValueStore.js
[2017-10-16 11:07:12.354] [DEBUG] Helper - [FileKeyValueStore.js]: FileKeyValueStore.js - constructor
[2017-10-16 11:07:12.354] [DEBUG] Helper - Msp ID : Org1MSP
[2017-10-16 11:07:12.354] [DEBUG] Helper - [crypto_ecdsa_aes]: importKey - start
[2017-10-16 11:07:12.355] [DEBUG] Helper - [crypto_ecdsa_aes]: importKey - have the key [Circular]
[2017-10-16 11:07:12.355] [DEBUG] Helper - [utils.CryptoKeyStore]: This class requires a CryptoKeyStore to save keys, using the store: {"opts":{"path":"/tmp/fabric-client-kvs_peerOrg1"}}
[2017-10-16 11:07:12.355] [DEBUG] Helper - [FileKeyValueStore.js]: FileKeyValueStore.js - constructor
[2017-10-16 11:07:12.356] [DEBUG] Helper - [utils.CryptoKeyStore]: _getKeyStore returning ks
[2017-10-16 11:07:12.356] [DEBUG] Helper - [ecdsa/key.js]: ECDSA curve param X: 0a66f3503a3322b2ca8e9dce03322d486ee6ec5970efaad3f153bc13aa2d942c
[2017-10-16 11:07:12.356] [DEBUG] Helper - [ecdsa/key.js]: ECDSA curve param Y: 312ad05190fa592fb9e8ac2dcdb23c84df7f49e4ee295c2aa1200a50c9146c46
[2017-10-16 11:07:12.356] [DEBUG] Helper - [FileKeyValueStore.js]: FileKeyValueStore -- setValue
[2017-10-16 11:07:12.357] [DEBUG] Helper - [crypto_ecdsa_aes]: importKey - start
[2017-10-16 11:07:12.357] [DEBUG] Helper - [crypto_ecdsa_aes]: importKey - have the key [Circular]
[2017-10-16 11:07:12.358] [DEBUG] Helper - [utils.CryptoKeyStore]: _getKeyStore resolving store
[2017-10-16 11:07:12.358] [DEBUG] Helper - [ecdsa/key.js]: ECDSA curve param X: 0a66f3503a3322b2ca8e9dce03322d486ee6ec5970efaad3f153bc13aa2d942c
[2017-10-16 11:07:12.359] [DEBUG] Helper - [ecdsa/key.js]: ECDSA curve param Y: 312ad05190fa592fb9e8ac2dcdb23c84df7f49e4ee295c2aa1200a50c9146c46
[2017-10-16 11:07:12.360] [DEBUG] Helper - [FileKeyValueStore.js]: FileKeyValueStore -- setValue
[2017-10-16 11:07:12.363] [DEBUG] Helper - [ecdsa/key.js]: ECDSA curve param X: 0a66f3503a3322b2ca8e9dce03322d486ee6ec5970efaad3f153bc13aa2d942c
[2017-10-16 11:07:12.363] [DEBUG] Helper - [ecdsa/key.js]: ECDSA curve param Y: 312ad05190fa592fb9e8ac2dcdb23c84df7f49e4ee295c2aa1200a50c9146c46
[2017-10-16 11:07:12.363] [DEBUG] Helper - [ecdsa/key.js]: ECDSA curve param X: 0a66f3503a3322b2ca8e9dce03322d486ee6ec5970efaad3f153bc13aa2d942c
[2017-10-16 11:07:12.363] [DEBUG] Helper - [ecdsa/key.js]: ECDSA curve param Y: 312ad05190fa592fb9e8ac2dcdb23c84df7f49e4ee295c2aa1200a50c9146c46
[2017-10-16 11:07:12.363] [DEBUG] Helper - [ecdsa/key.js]: ECDSA curve param X: 0a66f3503a3322b2ca8e9dce03322d486ee6ec5970efaad3f153bc13aa2d942c
[2017-10-16 11:07:12.363] [DEBUG] Helper - [ecdsa/key.js]: ECDSA curve param Y: 312ad05190fa592fb9e8ac2dcdb23c84df7f49e4ee295c2aa1200a50c9146c46
[2017-10-16 11:07:12.363] [DEBUG] Helper - [FileKeyValueStore.js]: FileKeyValueStore -- setValue
info: [packager/Golang.js]: packaging GOLANG from github.com/example_cc
[2017-10-16 11:07:12.384] [DEBUG] Helper - [crypto_ecdsa_aes]: ecdsa signature: Signature {
r: <BN: 98e0e079bcad1db53e72e6e001b03f8c76c50c499bc0237a1b8db341231a6341>,
s: <BN: 23b0d0657eeaccc22def7a429c888c08a83dec55e56bc89fe34964319d6ac875>,
recoveryParam: 1 }
[2017-10-16 11:07:12.400] [INFO] install-chaincode - install proposal was good
[2017-10-16 11:07:12.400] [INFO] install-chaincode - install proposal was good
[2017-10-16 11:07:12.401] [INFO] install-chaincode - Successfully sent install Proposal and received ProposalResponse: Status - 200
[2017-10-16 11:07:12.401] [DEBUG] install-chaincode -
Successfully Installed chaincode on organization org1