Hyperledger Explorer

Hyperledger Explorer is a simple, powerful, easy-to-use, highly maintainable, open source browser for viewing activity on the underlying blockchain network.

Directory Structure

├── app                    fabric GRPC interface
├── db			   the mysql script and help class
├── explorer_client        Web Ui
├── first-network	Basic fabric network setup
├── listener               websocket listener
├── metrics                metrics about tx count per minute and block count per minute
├── service                the service 
├── socket		   push real time data to front end
├── timer                  Timer to post information periodically  
└── utils                  Various utility scripts

Requirements

Following are the software dependencies required to install and run hyperledger explorer

nodejs 6.9.x (Note that v7.x is not yet supported)
mysql 5.7 or greater

Hyperledger Explorer works with Hyperledger Fabric 1.0. Install the following software dependencies to manage fabric network.

docker 17.06.2-ce [https://www.docker.com/community-edition]
docker-compose 1.14.0 [https://docs.docker.com/compose/]

Clone Repository

Clone this repository to get the latest using the following command.

git clone https://github.com/hyperledger/blockchain-explorer.git
cd blockchain-explorer

Database setup

Run the database setup scripts located under db/fabricexplorer.sql

mysql -u<username> -p < db/fabricexplorer.sql

Fabric network setup

Setup your own network using Build your network tutorial from Fabric. Once you setup the network, please modify the values in config.json accordingly.

Running blockchain-explorer

On another terminal,

cd blockchain-explorer
Modify config.json to update network-config Change "fabric-path" to your fabric network path, example "/home/user1/workspace/fabric-samples" for the following keys: "tls_cacerts", "key", "cert". Final path for key "tls_cacerts" will be "/home/user1/workspace/fabric-samples/first-network/crypto-config/peerOrganizations/org1.example.com/peers/peer0.org1.example.com/tls/ca.crt"
Modify config.json to update one of the channel
- mysql host, username, password details

 "channel": "mychannel",
 "mysql":{
      "host":"127.0.0.1",
      "database":"fabricexplorer",
      "username":"root",
      "passwd":"123456"
   }

If you are connecting to a non TLS fabric peer, please modify the protocol (grpcs->grpc) and port (9051-> 9050) in the peer url and remove the tls_cacerts. Depending on this key, the application decides whether to go TLS or non TLS route.

npm install
./start.sh

Launch the URL http://localhost:8080 on a browser.