Blockchain in Golang using Docker
The link to the medium article explaining the code is here
Installation and Usage
Dependencies
Install Go
Install Docker
Set up the server and run the blockchain
Run the following commands in a new terminal.
Clone this repository:
$ git clone https://github.com/divija-swetha/Blockchain-in-Golang-using-Docker.git
$ cd Blockchain-in-Golang-using-Docker
$ go run Blockchain-in-Golang-using-Docker.go
Server listening on localhost:5000.
Blockchain
Running the blockchain on the server
$ curl localhost:5000/chain
Mining Blocks
To see the mining process on the selectedserver address, run the following command
$ curl localhost:5000/mine
Adding a New Transaction
To add a new transaction on blockchain, we need the block content i.e., the sender address, the receiver address and the amount sent from sender to the receiver. A new transaction can be added in a block mined by a miner at a perticular server address.
$ curl -X POST -H "Content-Type: application/json" -d '{
"sender": "66ad49fc75114203-8db2c886c13339ea",
"recipient": "98c438146f674768a1bb0e225a75311f",
"amount": 50
}' localhost:5000/transactions/new
Adding a new node into the network
The new server addresses need to be registered to the previous address to form a network.
$ curl -X POST -H "Content-Type: application/json" -d '{
"nodes": ["http://localhost:5001","http://localhost:5002"]
}' localhost:5000/nodes/register
Resolve nodes
If there are more than one nodes, then, run the following command to resolve nodes.
$ curl localhost:5000/nodes/resolve
Adding more instances
We can add more instances to the blockchain network using the following commands.
$ go run blockchain.go -p 5001
$ go run blockchain.go -p 5002
$ go run blockchain.go -p 5003
Docker
The code can be executed using Docker using the following commands.
$ docker build -t blockchain .
$ docker run --rm -p 9000:5000 blockchain
$ docker run --rm -p 9001:5000 blockchain
$ docker run --rm -p 9002:5000 blockchain
Contributors
- Divija Swetha Gadiraju [email protected]
