I have configured our Fabric network (v1.4) with Explorer (latest version).
node --version v8.16.0
No errors in db log No application level errors Explorer syncing process is going on continuously for the network Able to view the updated data in DB http://localhost:8080/api-docs/ (Explorer Swagger) works fine. However while accessing http://localhost:8080/ i am getting
Cannot GET / error.
Chrome inspect logs -
Failed to load resource: the server responded with a status of http://localhost:8080/ 404 (Not Found)
console logs -
[2020-01-28T22:30:53.167] [INFO] PgService - SSL to Postgresql disabled
[2020-01-28T22:30:53.167] [INFO] PgService - connecting to Postgresql postgres://hppoc:******@127.0.0.1:5432/fabricexplorer
[2020-01-28T22:30:54.285] [INFO] Platform - client_configs.name first-network client_configs.profile ./connection-profile/first-network.json
[2020-01-28T22:30:54.285] [INFO] Platform - FabricUtils.createFabricClient
[2020-01-28T22:30:54.286] [INFO] FabricConfig - config.client.tlsEnable true
[2020-01-28T22:30:54.287] [INFO] FabricGateway - peer0.org1.example.com
[2020-01-28T22:30:54.287] [INFO] FabricGateway - /path/fabric-samples/first-network/crypto-config/peerOrganizations/org1.example.com/users/[email protected]/msp/signcerts/[email protected]
adminPrivateKeyPath /path/fabric-samples/first-network/crypto-config/peerOrganizations/org1.example.com/users/[email protected]/msp/keystore/e65fa2dd29a69b2b28f9e439d1a8d555d411e9906e5a20d0a7341207a3a46424_sk
[2020-01-28T22:30:54.287] [INFO] FabricConfig - FabricConfig, this.config.channels mychannel
[2020-01-28T22:30:54.607] [INFO] FabricClient - FabricClient.discover_results endpoint { host: 'orderer.example.com', port: 7050 }
[2020-01-28T22:30:54.638] [INFO] Platform - FabricUtils.createDetachClient
[2020-01-28T22:30:54.640] [INFO] Platform - initializeListener, client_name, client first-network { name: 'first-network',
profile: './connection-profile/first-network.json' }
[2020-01-28T22:30:54.646] [INFO] main - Please open web browser to access ：http://localhost:8080/
[2020-01-28T22:30:54.646] [INFO] main - pid is 18213
[2020-01-28T22:30:54.782] [INFO] PgService - SSL to Postgresql disabled
[2020-01-28T22:30:54.782] [INFO] PgService - connecting to Postgresql postgres://hppoc:******@127.0.0.1:5432/fabricexplorer
[2020-01-28T22:30:55.397] [INFO] SyncPlatform - Updating the client network and other details to DB
[2020-01-28T22:30:55.404] [INFO] SyncServices - SyncServices.synchNetworkConfigToDB client first-network channel_name mychannel
[2020-01-28T22:30:55.427] [INFO] FabricClient - FabricClient.discover_results endpoint { host: 'orderer.example.com', port: 7050 }
[2020-01-28T22:30:55.528] [INFO] SyncPlatform - Sync process is started for the network : [first-network] and client : [first-network]
[2020-01-28T22:30:55.530] [INFO] FabricConfig - config.client.tlsEnable true
[2020-01-28T22:30:55.530] [INFO] FabricGateway - peer0.org1.example.com
[2020-01-28T22:30:55.530] [INFO] FabricGateway - /path/fabric-samples/first-network/crypto-config/peerOrganizations/org1.example.com/users/[email protected]/msp/signcerts/[email protected]
adminPrivateKeyPath /path/fabric-samples/first-network/crypto-config/peerOrganizations/org1.example.com/users/[email protected]/msp/keystore/e65fa2dd29a69b2b28f9e439d1a8d555d411e9906e5a20d0a7341207a3a46424_sk
[2020-01-28T22:30:55.530] [INFO] FabricConfig - FabricConfig, this.config.channels mychannel
[2020-01-28T22:30:55.798] [INFO] FabricClient - FabricClient.discover_results endpoint { host: 'orderer.example.com', port: 7050 }
[2020-01-28T22:30:55.833] [INFO] SyncServices - SyncServices.synchNetworkConfigToDB client first-network channel_name mychannel
[2020-01-28T22:30:55.865] [INFO] FabricClient - FabricClient.discover_results endpoint { host: 'orderer.example.com', port: 7050 }
[2020-01-28T22:30:55.883] [INFO] Sync - Synchronizer pid is 18220
[2020-01-28T22:30:55.901] [INFO] SyncServices - block_row.blocknum 4
[2020-01-28T22:30:58.200] [INFO] SyncPlatform - Updating the client network and other details to DB
[2020-01-28T22:30:58.209] [INFO] SyncServices - SyncServices.synchNetworkConfigToDB client first-network channel_name mychannel
[2020-01-28T22:30:58.241] [INFO] FabricClient - FabricClient.discover_results endpoint { host: 'orderer.example.com', port: 7050 }
So, I found the answer to the problem - Weirdly the problem was it shows everywhere that it serves on localhost:8080 but after a lot of research found out that node js cannot serve static pages which hyperledger explorer is on port 8080. So, needs to use "serve" to build and serve that page. I had did that 2 days back, it starts on port 5000 and it`s own IP address, but I was getting error on web browser for violation of "control security policy".
Solution :
$ cd ~/Hyperledger/blockchain-explorer/client
$ npm install
$ npm test -- -u --coverage
$ npm run build
$ npm install -g serve
$ serve -s build
Now it will show you the output something like :
┌────────────────────────────────────────────────────┐
│ │
│ Serving! │
│ │
│ - Local: http://localhost:5000 │
│ - On Your Network: http://160.33.244.178:5000 │
│ │
│ Copied local address to clipboard! │
│ │
└────────────────────────────────────────────────────┘
If you open up : http://localhost:5000 it will not show anything and in the network logs on inspect window will show you - "control security policy violation".
so use port 8080 instead like this :
- Local: http://localhost:8080 │
- On Your Network: http://160.33.244.178:8080
Also, you would need to start the hyperldger explorer server :
$ cd ~/<YourPath>/blockchain-explorer
$ ./start.sh
You will see login page with first network selected.
Use :
"adminUser" is the the admin user of the network, in this case it's fabric CA or an identity user.
"adminPassword" is the password for the admin user.
and you are in !