找不到newEventHub函数 [英] unable to find newEventHub function

问题描述

我是Hyperledger面料的新手.我已经下载了Fabric v1.2.0，并且尝试从fabric-sample文件夹运行fabcar示例.我对chaincode的查询进行得很好，但是当我尝试调用chaincode时，我从cmd中收到以下错误.

I am new to hyperledger fabric. I have downloaded the fabric v1.2.0 and I tried to run fabcar example from the fabric-sample folder. My querying on the chaincode went well, but when I tried to invoke the chaincode I got the below error from the cmd.

这是我对锁码的要求

var request = {
    //targets: let default to the peer assigned to the client
    chaincodeId: 'fabcar',
    fcn: 'changeCarOwner',
    args: ['CAR4', 'Dave'],
    chainId: 'mychannel',
    txId: tx_id
};

错误:

无法成功调用:: TypeError:fabric_client.newEventHub不是函数

Failed to invoke successfully :: TypeError: fabric_client.newEventHub is not a function

当我尝试在 index.t.ds 中找到newEventHub时，找不到该函数.有人可以帮我吗.谢谢.

When I tried to find newEventHub in index.t.ds, I could not find the function. Can anyone help me with this.Thanks in advance.

推荐答案

我认为他们已将EventHub类替换为 ChannelEventHub .

I think they've replaced the EventHub class with ChannelEventHub.

您可以使用以下命令更新invoke.js文件:

You can update the invoke.js file with following:

第105行:

let event_hub = channel.newChannelEventHub('localhost:7051');
// event_hub.setPeerAddr('grpc://localhost:7053');

第130行:

console.log('The transaction has been committed on peer ' + event_hub.getPeerAddr());

那应该解决它.

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