Basic blockchain nodejs implementation. this project follows Lauri Hartikka's article: "A blockchain in 200 lines of code"
A device contains a database which contains all the chain, a public and a private key. A block contains a content which is hashed by its creator and the hash of the previous block it depends on.
Once the block created it will be sent over the network for validation from other devices. If confirmed, this block is then stored in the database. A block is immutable, it can be read but can't be modified or deleted.
The device is able to read blocks only created by itself.
The encryption used is AES192 due to it's speed, lightweight and safety.
- index : number
- timestamp : any
- data : number
- nonce : string
- prevHash : string
- currHash : string
- qrCode : string
Collections:
- blocks
GET /api API infos
GET /api/block/all get all blocks
POST /api/block/one get one block
GET /api/block/create create one block
GET /chain/check check chain integrity# clone the repo
git clone [repo] [name?]
cd [naive-chain | name?]
# build server
npm run build
# start mongodb services
brew services start mongodb #osX
npm [start | run dev]