blockchain

Documentation

Index

• Constants
• func Handle(err error)
• func InitBlockchain()
• func ToHex(num int64) []byte
• type Block
  • func CreateBlock(data string, prevHash []byte) *Block
  • func Deserialize(data []byte) *Block
  • func Genesis() *Block
  • func (b *Block) Serialize() []byte
• type BlockChain
  • func (chain *BlockChain) AddBlock(data string)
• type ProofOfWork
  • func NewProof(b *Block) *ProofOfWork
  • func (pow *ProofOfWork) InitData(nonce int) []byte
  • func (pow *ProofOfWork) Run() (int, []byte)
  • func (pow *ProofOfWork) Validate() bool

Constants

const Difficulty = 18

static in a real blockchain, it has to increase overtime due to increase in number of miners growing and also computation power

Functions

func Handle

func Handle(err error)

func InitBlockchain

func InitBlockchain()

returns a pointer to the blockchain

func ToHex

func ToHex(num int64) []byte

a utility function

Types

type Block

type Block struct {
	// block's hash = Data + prevHash
	Hash []byte
	//any type of data
	Data []byte
	// previous block's hash
	PrevHash []byte
	// the nonce value that meets the target for the block
	Nonce int
}

a struct (a data structure to represent to represent our block)

func CreateBlock

func CreateBlock(data string, prevHash []byte) *Block

outputs a pointer to a block

func Deserialize

func Deserialize(data []byte) *Block

func Genesis

func Genesis() *Block

returns a pointer to a block

func (*Block) Serialize

func (b *Block) Serialize() []byte

type BlockChain

type BlockChain struct {
	Blocks []*Block

	Database *badger.DB
	// contains filtered or unexported fields
}

func (*BlockChain) AddBlock

func (chain *BlockChain) AddBlock(data string)

any blockchain struct instance can use this function

type ProofOfWork

type ProofOfWork struct {
	Block  *Block
	Target *big.Int
}

func NewProof

func NewProof(b *Block) *ProofOfWork

produce a pointer to a POW

func (*ProofOfWork) InitData

func (pow *ProofOfWork) InitData(nonce int) []byte

create a method on a struct

func (*ProofOfWork) Run

func (pow *ProofOfWork) Run() (int, []byte)

func (*ProofOfWork) Validate

func (pow *ProofOfWork) Validate() bool

to validate a block relatively simpler than getting the nonce