Hyperledger Explorer config example for Hyperledger Fabric basic-network sample (assumes ~/fabric/fabric-samples) (original: https://github.com/hyperledger/blockchain-explorer/blob/release-3.8/app/platform/fabric/config.json)

config.json

{
  "network-configs": {
    "network-1": {
      "version": "1.0",
      "clients": {
        "client-1": {
          "tlsEnable": false,
          "organization": "Org1MSP",
          "channel": "mychannel",
          "credentialStore": {
            "path": "./tmp/credentialStore_Org1/credential",
            "cryptoStore": {
              "path": "./tmp/credentialStore_Org1/crypto"
            }
          }
        }
      },
      "channels": {
        "mychannel": {
          "peers": {
            "peer0.org1.example.com": {}
          },
          "connection": {
            "timeout": {
              "peer": {
                "endorser": "6000",
                "eventHub": "6000",
                "eventReg": "6000"
              }
            }
          }
        }
      },
      "organizations": {
        "Org1MSP": {
          "mspid": "Org1MSP",
          "fullpath": false,
          "adminPrivateKey": {
            "path": "/home/vagrant/fabric/fabric-samples/basic-network/crypto-config/peerOrganizations/org1.example.com/users/Admin@org1.example.com/msp/keystore"
          },
          "signedCert": {
            "path": "/home/vagrant/fabric/fabric-samples/basic-network/crypto-config/peerOrganizations/org1.example.com/users/Admin@org1.example.com/msp/signcerts"
          }
        },
        "OrdererMSP": {
          "mspid": "OrdererMSP",
          "adminPrivateKey": {
            "path": "/home/vagrant/fabric/fabric-samples/basic-network/crypto-config/ordererOrganizations/example.com/users/Admin@example.com/msp/keystore"
          }
        }
      },
      "peers": {
        "peer0.org1.example.com": {
          "url": "grpc://localhost:7051",
          "eventUrl": "grpc://localhost:7053",
          "grpcOptions": {
            "ssl-target-name-override": "peer0.org1.example.com"
          }
        }
      },
      "orderers": {
        "orderer.example.com": {
          "url": "grpc://localhost:7050"
        }
      }
    },
    "network-2": {}
  },
  "configtxgenToolPath": "/home/vagrant/fabric/fabric-samples/bin",
  "license": "Apache-2.0"
}