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block.go
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/
block.go
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package blockchain
import (
"bytes"
"encoding/gob"
"log"
)
type Block struct {
Hash []byte
Data []byte
PreviousHash []byte
Nonce int
}
func CreateBlock(data string, previousHash []byte) *Block {
block := &Block{[]byte{}, []byte(data), previousHash, 0}
pow := NewProof(block)
nonce, hash := pow.Run()
block.Hash = hash[:]
block.Nonce = nonce
return block
}
//Genesis Block is the first block in the chain
func Genesis() *Block {
return CreateBlock("Genesis", []byte{})
}
// Serialize the block into bytes in order to be stored by using BadgerDB
func (b *Block) Serialize() []byte {
var res bytes.Buffer
encoder := gob.NewEncoder(&res)
err := encoder.Encode(b)
Handle(err)
return res.Bytes()
}
func Deserialize(data []byte) *Block {
var block Block
decoder := gob.NewDecoder(bytes.NewReader(data))
err := decoder.Decode(&block)
Handle(err)
return &block
}
func Handle(err error) {
if err != nil {
log.Panic(err)
}
}