MyBlockchain

A blockchain made from scratch using javascript

The blockchain created has various features like:

• There is self adjusting difficulty level to control the mining rate
• There is a broadcast facility to broadcast the block created to all the nodes
• There is a syncing feature that allows a newly added node to have access to all the previously mined blocks
• There is also a verification feature to check whether the block coming from the node/miner is valid or not
• It is based on the Publish-Subscribe Model
• It uses Postman app to write data onto the blocks
• There is also a feature which will automatically select the longest chain adhering to the primary feature of a blockchain

Steps to run this project

Step 1: Clone this project using git clone https://github.com/Rahul1227/MyBlockchain.git
Step 2: Install all the dependencies:

• npm init -y
• npm i [email protected] --save
• npm i express --save
• npm i nodemon --save-dev
• npm i body-parser --save
• npm i [email protected]
• npm i [email protected] --save-dev
• npm i [email protected] --save
  Step 3: Download Postman app and set up it to write onto the blockchain
  Step 4: Download Redis zip folder from https://github.com/microsoftarchive/redis/releases , extract it and run redis-server in the background
  Step 5: Run the blockchain with the command npm run dev and peer nodes using npm run dev-peer
  

Step 6: Open Postman app and provide the data in the json format to the blockchain
Step 7: Get the blocks info from http://localhost:3000/api/blocks