Using Hyperledger composer with Hyperledger Blockchain explorer

Question

I have created a Business network using Hyperledger composer and now I want to integrate it with Hyperledger explorer that is available here: https://github.com/hyperledger/blockchain-explorer/

But I am not understanding how to make the configurations. Please help.

Answer 1

I was facing the same issue and I found this solution for configuration: 

blockchain-explorer/app/platform/fabric/config.json

    {

"network-config": {

    "org1": {

        "name": "Org1",

        "mspid": "Org1MSP",

        "peer1": {

            "requests": "grpc://127.0.0.1:7051",

            "events": "grpc://127.0.0.1:7053",

            "server-hostname": "peer0.org1.example.com"

        },

        "admin": {

            "key": "/home/rob/fabric-dev-servers/fabric-scripts/hlfv11/composer/crypto-config/peerOrganizations/org1.example.com/users/Admin@org1.example.com/msp/keystore",

            "cert": "/home/rob/fabric-dev-servers/fabric-scripts/hlfv11/composer/crypto-config/peerOrganizations/org1.example.com/users/Admin@org1.example.com/msp/signcerts"

        }

    }

},

"channel": "composerchannel",

"orderers":[

            {

            "mspid": "OrdererMSP",

            "server-hostname":"orderer.example.com",

            "requests":"grpc://127.0.0.1:7050"

            }

            ],

"keyValueStore": "/tmp/fabric-client-kvs",

"configtxgenToolPath": "fabric-path/fabric-samples/bin",

"eventWaitTime": "30000",

"license": "Apache-2.0",

"version": "1.1"

}

The changes made in the original file are follows:

1. name of the org ( "name": "Org1" ),
2. I removed the TLS certificate references since the Dev fabric doesn't use TLS,
3. I changed the urls to grpc instead of grpcs,
4. I pointed the admin cert and key to my locations.
5. Channel name.

Now to build the app, run these commands

cd blockchain-explorer/app/test

npm install

cd ../

npm install

cd test

npm run test

cd blockchain-explorer

npm install

cd client/

npm install

npm test -- -u --coverage

npm run build

It worked for me!

Comments

But how do we configure more than 1 channel in above config.json as Fabric supports multiple channels

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You can refer to this link: https://medium.com/@kctheservant/demo-of-multi-channel-network-in-hyperledger-fabric-640f7158e2d3

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Thank you very much for the wonderful solution. It worked for me with an older version of hyperledger explorer. version 0.3.5.1

Answer 2

First, clone blockchain explorer from git. Then in the blockchain-explorer/config.json include the channel/channel list that you want to use the explorer for. Then open a browser and type https://localhost:8080. You will be able to see details from explorer

Comments

Can I use the blockchain explorer from the official site? I have it already downloaded.

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Yes, you can use it to do the same. I usually prefer getting applications from github. Used to it :P

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Can't find blockchian explorer in github. Please provide link for the same.

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Hey @Daya. Maybe you didn't look for it enough. Here's the link: https://github.com/hyperledger/blockchain-explorer