blockchain

package

v0.0.0-...-450b360 Latest Latest Go to latest Published: Aug 6, 2021 License: MIT Imports: 2 Imported by: 0

Details

Valid go.mod file

The Go module system was introduced in Go 1.11 and is the official dependency management solution for Go.
Redistributable license

Redistributable licenses place minimal restrictions on how software can be used, modified, and redistributed.
Tagged version

Modules with tagged versions give importers more predictable builds.
Stable version

When a project reaches major version v1 it is considered stable.
Learn more about best practices

Repository

github.com/alexmolinanasaev/simple_blockchain

Links

Open Source Insights

Documentation ¶

Index ¶

Constants
Variables
func NewBlockchainChainError(errorCode int, err error) error
type Block
- func GetGenesisBlock() Block
- func (b *Block) CalcHash() string
- func (b *Block) Mine() string
type Chain
- func NewChain(ID uint8) *Chain
type Peer
- func NewPeer(peerID, chainID uint8) *Peer

Constants ¶

View Source

const (
	GENESIS_BLOCK_NUMBER    = 0
	GENESIS_BLOCK_PREV_HASH = "0"
	GENESIS_BLOCK_PAYLOAD   = "genesis"
	// pre-calculated genesis block hash
	GENESIS_BLOCK_HASH = "e2a1f4f34d6d2ade6eaf221683ee2bcf1c579ca640310954c2e0f0e3457783c3"
)

magic hardcoded genesis block values

View Source

const (
	UnknownError = -1
	// block errors
	WrongBlockNumberError = iota
	NegativeBlockNumberError
	ExcitingBlockNumberError
	WrongPrevBlockHashError
	WrongBlockHashError
	EmptyBlockHashError
	BlockValidationError
	ChainValidationError
	EmptyChainError
	MineBlockError
	PeerSyncError
	AddBlockError
)

Variables ¶

View Source

var ErrorMessages = map[int]string{
	UnknownError:             "unkown error",
	WrongBlockNumberError:    "wrong block number",
	NegativeBlockNumberError: "negative block number",
	ExcitingBlockNumberError: "block number exceeds chain lenght",
	WrongPrevBlockHashError:  "wrong previous block hash",
	WrongBlockHashError:      "wrong block hash",
	EmptyBlockHashError:      "block hash is empty",
	BlockValidationError:     "block validation error",
	ChainValidationError:     "chain validation error",
	EmptyChainError:          "chain is empty",
	MineBlockError:           "cannot mine block",
	PeerSyncError:            "cannot synchronize to chain",
	AddBlockError:            "cannot add block to chain",
}

Functions ¶

func NewBlockchainChainError ¶

func NewBlockchainChainError(errorCode int, err error) error

Types ¶

type Block ¶

type Block struct {
	Number        int
	PrevBlockHash string
	Payload       string
	Hash          string
}

func GetGenesisBlock ¶

func GetGenesisBlock() Block

func (*Block) CalcHash ¶

func (b *Block) CalcHash() string

func (*Block) Mine ¶

func (b *Block) Mine() string

type Chain ¶

type Chain struct {
	ID     uint8
	Blocks []Block
}

func NewChain ¶

func NewChain(ID uint8) *Chain

NewChain creates a new chain with pre-calculated genesis block

func (*Chain) AddBlock ¶

func (c *Chain) AddBlock(block Block) error

func (*Chain) GetBlock ¶

func (c *Chain) GetBlock(blockNum int) Block

func (*Chain) MineBlock ¶

func (c *Chain) MineBlock(payload string)

func (*Chain) Print ¶

func (c *Chain) Print()

func (*Chain) ValidateBlock ¶

func (c *Chain) ValidateBlock(blockNum int) error

func (*Chain) ValidateChain ¶

func (c *Chain) ValidateChain() (int, error)

func (*Chain) ValidateNewBlock ¶

func (c *Chain) ValidateNewBlock(block Block) error

type Peer ¶

type Peer struct {
	ID    uint8
	Peers map[uint8]*Peer
	Chain *Chain
}

func NewPeer ¶

func NewPeer(peerID, chainID uint8) *Peer

func (*Peer) AddBlock ¶

func (p *Peer) AddBlock(block Block) error

func (*Peer) AddPeer ¶

func (p *Peer) AddPeer(peer *Peer) error

func (*Peer) BroadcastBlock ¶

func (p *Peer) BroadcastBlock(block Block)

func (*Peer) DeletePeerByID ¶

func (p *Peer) DeletePeerByID(id uint8)

func (*Peer) GetBlock ¶

func (p *Peer) GetBlock(blockNum int) Block

func (*Peer) GetChain ¶

func (p *Peer) GetChain() *Chain

func (*Peer) GetChainLen ¶

func (p *Peer) GetChainLen() int

func (*Peer) MineBlock ¶

func (p *Peer) MineBlock(payload string)

func (*Peer) Sync ¶

func (p *Peer) Sync() error

Source Files ¶

View all Source files

?	: This menu
/	: Search site
f or F	: Jump to
y or Y	: Canonical URL