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

├── 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 

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 this repository to get the latest using the following command.

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

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

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

This repository comes with a sample network configuration to start with

1. cd first-network
2. ./bootstrap-1.0.2.sh - This is going to download the necessary binaries and hyperledger docker images.
3. mkdir -p ./channel-artifacts
4. ./byfn.sh -m generate -c mychannel
5. ./byfn.sh -m up -c mychannel

This brings up a 2 org network with channel name mychannel .

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

On another terminal,

1. cd blockchain-explorer
2. 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.

3. npm install
4. ./start.sh

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

This is how the blockchain-explorer looks like,