java-basic-blockchain

Proof-of-concept block chain implementation in Java

This project is a java POC implementation of a python basic block chain implementation

Usage

Build the block chain jar file using make.ps1 (on Windows) or make.sh (on Unix), this will create the jar file basic-blockchain.jar

Now run the following command:

java -jar basic-blockchain.jar

This will start the block chain node at http://localhost:3088

Now to run a second basic block chain node:

java -jar basic-blockchain.jar http://localhost:3088

This will start the second block chain node at http://localhost:3089 and uses the node at http://localhost:3088 as the seed node to broadcast its ip address.

The following api is available for the block chain:

• http://localhost:3088/mine: mine by running proof-of-work in the current node
• http://localhost:3088/nodes/resolve: achieve consensus in the block chain network by resolving conflicts
• http://localhost:3088/transactions/new: add a new transaction to the current node
• http://localhost:3088/chain: return the chain stored in the current node
• http://localhost:3088/nodes: return the list of nodes participating in the block chain