Simple blockchain using Vapor

Simple Blockchain, implemented using Vapor 2, a Web Framework for Swift that works on iOS, macOS, and Ubuntu.

Endpoints

Endpoins that need payload, are using json format.

Method	Route	Description
GET	/	Returns whole blockchain.
POST	/transaction	Creates new transaction by using sender, recipienta and amount parameters.
POST	/mine	Mines new block using proof of work which includes all pending transactions, and rewards miner
POST	/register	Registers new node in a chain using url param
GET	/resolve	Requests block data from all registered nodes and chooses if current node blocks should be replaced via 'whoever has longest valid chain is right' algorithm

Build & Run

Swift

Build

swift build --configuration release

Run

.build/release/Run serve

To run multiple instances, change the public port number:

.build/release/Run serve --config:server.port=8080
.build/release/Run serve --config:server.port=8081
.build/release/Run serve --config:server.port=8082

Docker

Build

$ docker build -t blockchain .

Run

$ docker run --rm -p 80:8080 blockchain

To run multiple instances, change the public port number:

$ docker run --rm -p 81:8080 blockchain
$ docker run --rm -p 82:8080 blockchain
$ docker run --rm -p 83:8080 blockchain

Notice

Thisi s just a toy blockhain implementation, do not use for production purposes, also currently blockchain is not persistent, so all data will be lost after app restart.