blockchain-poc/block.go

package main

import (
	"math"
	"time"
)

var (
	maxNonce = math.MaxInt64
)

type Block struct {
	Timestamp     int64
	Data          []byte
	PrevBlockHash []byte
	Hash          []byte
	Nonce         int
}

// NewBlock returns a new block, ready to be added to the chain
func NewBlock(data string, prevBlockHash []byte) *Block {
	block := &Block{
		Timestamp:     time.Now().Unix(),
		Data:          []byte(data),
		PrevBlockHash: prevBlockHash,
		Hash:          []byte{},
	}
	pow := NewProofOfWork(block)
	nonce, hash := pow.Run()

	block.Hash = hash[:]
	block.Nonce = nonce

	return block
}