本文已在我的公众号Fabric技术分享原创首发。
转载请标明出处：
https://blog.csdn.net/qq_27818541/article/details/78517110
本文出自:【BigManing的博客】
前言
根据交易id查询交易详细信息。需要如下参数：
- 交易id
- peer节点
- channel
我们可以复用第六篇文章中的交易ideb058850e7247ad0bc25ec57ced1cd1255666c390ca0c9300858ce6e57175221。
路由
接收指定的peer以及交易id，校验参数后传入到具体的实现中。
app.js
//根据交易id 查询交易详情 Query Get Transaction by Transaction ID
app.get('/channels/:channelName/transactions/:trxnId', function(req, res) {
logger.debug(
'================ GET TRANSACTION BY TRANSACTION_ID ======================'
);
logger.debug('channelName : ' + req.params.channelName);
let trxnId = req.params.trxnId;
let peer = req.query.peer;
if (!trxnId) {
res.json(getErrorMessage('\'trxnId\''));
return;
}
// 具体实现
query.getTransactionByID(peer, trxnId, req.username, req.orgname)
.then(function(message) {
res.send(message);
});
});具体实现
query.js
var getTransactionByID = function(peer, trxnID, username, org) {
//1 peer节点地址
var target = buildTarget(peer, org);
//2 获取channel
var channel = helper.getChannelForOrg(org);
//3 获取注册用户
return helper.getRegisteredUsers(username, org).then((member) => {
//4 查询交易详情
return channel.queryTransaction(trxnID, target);
}, (err) => {
logger.info('Failed to get submitter "' + username + '"');
return 'Failed to get submitter "' + username + '". Error: ' + err.stack ?
err.stack : err;
}).then((response_payloads) => {
//5 处理响应
if (response_payloads) {
logger.debug(response_payloads);
return response_payloads;
} else {
logger.error('response_payloads is null');
return 'response_payloads is null';
}
}, (err) => {
logger.error('Failed to send query due to error: ' + err.stack ? err.stack :
err);
return 'Failed to send query due to error: ' + err.stack ? err.stack : err;
}).catch((err) => {
logger.error('Failed to query with error:' + err.stack ? err.stack : err);
return 'Failed to query with error:' + err.stack ? err.stack : err;
});
};基本流程
API访问
echo "GET query Transaction by TransactionID"
echo
curl -s -X GET http://localhost:4000/channels/mychannel/transactions/eb058850e7247ad0bc25ec57ced1cd1255666c390ca0c9300858ce6e57175221?peer=peer1 \
-H "authorization: Bearer $ORG1_TOKEN" \
-H "content-type: application/json"
echo
echo控制台打印：
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 -----\nMIICGDCCAb+gAwIBAgIQPcMFFEB/vq6mEL6vXV7aUTAKBggqhkjOPQQDAjBzMQsw\nCQYDVQQGEwJVUzETMBEGA1UECBMKQ2FsaWZvcm5pYTEWMBQGA1UEBxMNU2FuIEZy\nYW5jaXNjbzEZMBcGA1UEChMQb3JnMS5leGFtcGxlLmNvbTEcMBoGA1UEAxMTY2Eu\nb3JnMS5leGFtcGxlLmNvbTAeFw0xNzA2MjMxMjMzMTlaFw0yNzA2MjExMjMzMTla\nMFsxCzAJBgNVBAYTAlVTMRMwEQYDVQQIEwpDYWxpZm9ybmlhMRYwFAYDVQQHEw1T\nYW4gRnJhbmNpc2NvMR8wHQYDVQQDExZwZWVyMC5vcmcxLmV4YW1wbGUuY29tMFkw\nEwYHKoZIzj0CAQYIKoZIzj0DAQcDQgAEzS9k2gCKHcat8Wj4T2nB1uyC8R2zg3um\nxdTL7nmgFWp0uyCCbQQxD/VS+8R/3DNvEFkvzhcjc9NU/nRqMirpLqNNMEswDgYD\nVR0PAQH/BAQDAgeAMAwGA1UdEwEB/wQCMAAwKwYDVR0jBCQwIoAgDnKSJOiz8xeE\nyKk8W4729MHJHZ5uV3xFwzFjYJ/kABEwCgYIKoZIzj0EAwIDRwAwRAIgHBdxbHUG\nrFUzKPX9UmmN3SwigWcRUREUy/GTb3hDIAsCIEF1BxTqv8ilQYE8ql0wJL4mTber\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]}}]}}}]}}}}
后台打印：
[2017-10-16 11:07:43.140] [DEBUG] SampleWebApp - Decoded from JWT token: username - Jim, orgname - org1
[2017-10-16 11:07:43.140] [DEBUG] SampleWebApp - ================ GET TRANSACTION BY TRANSACTION_ID ======================
[2017-10-16 11:07:43.141] [DEBUG] SampleWebApp - channelName : mychannel
[2017-10-16 11:07:43.142] [DEBUG] Helper - [FileKeyValueStore.js]: FileKeyValueStore.js - constructor
[2017-10-16 11:07:43.144] [DEBUG] Helper - [FileKeyValueStore.js]: FileKeyValueStore -- getValue
[2017-10-16 11:07:43.145] [DEBUG] Helper - [crypto_ecdsa_aes]: importKey - start
[2017-10-16 11:07:43.146] [DEBUG] Helper - [crypto_ecdsa_aes]: importKey - have the key [Circular]
[2017-10-16 11:07:43.146] [DEBUG] Helper - [utils.CryptoKeyStore]: _getKeyStore resolving store
[2017-10-16 11:07:43.146] [DEBUG] Helper - [ecdsa/key.js]: ECDSA curve param X: b3e2a75b9a4fd2b081589b1c45bde49f583aea9d7d466798c7b765c4ca96973d
[2017-10-16 11:07:43.146] [DEBUG] Helper - [ecdsa/key.js]: ECDSA curve param Y: c58820e5a9db75ab17841ac158e9389ad0d130a6827dc0682dcb2d2c5dccb349
[2017-10-16 11:07:43.146] [DEBUG] Helper - [FileKeyValueStore.js]: FileKeyValueStore -- setValue
[2017-10-16 11:07:43.147] [DEBUG] Helper - [utils.CryptoKeyStore]: _getKeyStore resolving store
[2017-10-16 11:07:43.147] [DEBUG] Helper - [FileKeyValueStore.js]: FileKeyValueStore -- getValue
[2017-10-16 11:07:43.147] [DEBUG] Helper - [ecdsa/key.js]: ECDSA curve param X: b3e2a75b9a4fd2b081589b1c45bde49f583aea9d7d466798c7b765c4ca96973d
[2017-10-16 11:07:43.147] [DEBUG] Helper - [ecdsa/key.js]: ECDSA curve param Y: c58820e5a9db75ab17841ac158e9389ad0d130a6827dc0682dcb2d2c5dccb349
[2017-10-16 11:07:43.148] [DEBUG] Helper - [ecdsa/key.js]: ECDSA curve param X: b3e2a75b9a4fd2b081589b1c45bde49f583aea9d7d466798c7b765c4ca96973d
[2017-10-16 11:07:43.148] [DEBUG] Helper - [ecdsa/key.js]: ECDSA curve param Y: c58820e5a9db75ab17841ac158e9389ad0d130a6827dc0682dcb2d2c5dccb349
[2017-10-16 11:07:43.148] [DEBUG] Helper - [ecdsa/key.js]: ECDSA curve param X: b3e2a75b9a4fd2b081589b1c45bde49f583aea9d7d466798c7b765c4ca96973d
[2017-10-16 11:07:43.148] [DEBUG] Helper - [ecdsa/key.js]: ECDSA curve param Y: c58820e5a9db75ab17841ac158e9389ad0d130a6827dc0682dcb2d2c5dccb349
[2017-10-16 11:07:43.148] [DEBUG] Helper - [FileKeyValueStore.js]: FileKeyValueStore -- setValue
[2017-10-16 11:07:43.148] [INFO] Helper - Successfully loaded member from persistence
[2017-10-16 11:07:43.155] [DEBUG] Helper - [crypto_ecdsa_aes]: ecdsa signature: Signature {
r: <BN: 6d0ae79a06d8b5d9d593d8a22f9667e41ef41d7005f635e071d61730e4519868>,
s: <BN: 2aa650cffd0dcf227f76add8a490a94eae4717a572576e2f56105d58cb21d292>,
recoveryParam: 1 }
[2017-10-16 11:07:43.167] [DEBUG] Query - { validationCode: 0,
transactionEnvelope:
{ signature: <Buffer 30 45 02 21 00 b1 1a 25 98 70 e0 bb f0 72 58 4f 35 3a b1 51 5f 47 59 c8 54 eb 47 5b ed cc ba 38 b5 c3 62 a4 d7 02 20 66 79 6e 05 ea e9 01 5e 63 ee a2 ... >,
payload: { header: [Object], data: [Object] } } }