本文介绍了如何访问Hyperledger Fabric交易历史中的'eventEmitted'字段的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我正在使用Hyperledger Fabric.我想访问Hyperledger Fabric交易历史中的"eventEmitted"字段.
I am working on hyperledger fabric.I want to access the 'eventEmitted' field in transaction history of hyperledger fabric.
/*transaction history*/
"transactionType": "com.acn.hps.aops.ims.addingEvidence",
"eventsEmitted": [
{
"$class": "com.acn.hps.aops.ims.BasicEvent",
"evidenceId": "100",
"eventId":
"b66fd1c38754519339172905d916497376029ad9620ba5f19999fb73cf1d8b58#0",
"timestamp": "2018-03-01T08:36:41.164Z"
}
]
我能够查询交易类型并得到结果，但是现在可以访问eventEmitted中的证据ID字段，如果我传递_ $ evidenceId并与eventEmitted中的证据字段ID相匹配，查询将如何进行
I was able to query the Transaction type and got the result, but now to access the evidence id field in eventEmitted how the query will be if i pass _$evidenceId and it matches with the field evidenceId in eventEmitted
query showEvidenceAllHistorians {
description: "get all assetDoc transactions"
statement: SELECT org.hyperledger.composer.system.HistorianRecord
WHERE (transactionType == 'com.acn.hps.aops.ims.addingEvidence')
}
推荐答案
我不知道CONTAINS不是您想要的答案吗?但是您可以尝试一下
I do not know CONTAINS is not the answer you want? But you can give it a try
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