Struct Header 

pub struct Header {
    pub version: Option<Version>,
    pub height: u64,
    pub time: u64,
    pub last_header_hash: Vec<u8>,
    pub last_commit_hash: Vec<u8>,
    pub data_hash: Vec<u8>,
    pub consensus_hash: Vec<u8>,
    pub app_hash: Vec<u8>,
    pub last_results_hash: Vec<u8>,
    pub proposer_address: Vec<u8>,
    pub validator_hash: Vec<u8>,
    pub chain_id: String,
}

Header is the header of a block in the blockchain.

Fields

version: Option<Version>

Block and App version

height: u64

Block height

time: u64

Block creation time

last_header_hash: Vec<u8>

Previous block info

last_commit_hash: Vec<u8>

Commit from aggregator(s) from the last block

data_hash: Vec<u8>

Block.Data root aka Transactions

consensus_hash: Vec<u8>

Consensus params for current block

app_hash: Vec<u8>

State after applying txs from the current block

last_results_hash: Vec<u8>

Root hash of all results from the txs from the previous block. This is ABCI specific but smart-contract chains require some way of committing to transaction receipts/results.

proposer_address: Vec<u8>

Original proposer of the block Note that the address can be derived from the pubkey which can be derived from the signature when using secp256k. We keep this in case users choose another signature format where the pubkey can’t be recovered by the signature (e.g. ed25519).

validator_hash: Vec<u8>

validatorhash for compatibility with tendermint light client.

chain_id: String

Chain ID the block belongs to

Trait Implementations

impl Clone for Header

fn clone(&self) -> Header

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Header

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl Default for Header

fn default() -> Header

Returns the “default value” for a type.

impl Message for Header

fn encoded_len(&self) -> usize

Returns the encoded length of the message without a length delimiter.

fn clear(&mut self)

Clears the message, resetting all fields to their default.

fn encode<B>(&self, buf: &mut B) -> Result<(), EncodeError>

where B: BufMut, Self: Sized,

Encodes the message to a buffer.

fn encode_to_vec(&self) -> Vec<u8>

where Self: Sized,

Encodes the message to a newly allocated buffer.

fn encode_length_delimited<B>(&self, buf: &mut B) -> Result<(), EncodeError>

where B: BufMut, Self: Sized,

Encodes the message with a length-delimiter to a buffer.

fn encode_length_delimited_to_vec(&self) -> Vec<u8>

where Self: Sized,

Encodes the message with a length-delimiter to a newly allocated buffer.

fn decode<B>(buf: B) -> Result<Self, DecodeError>

where B: Buf, Self: Default,

Decodes an instance of the message from a buffer.

fn decode_length_delimited<B>(buf: B) -> Result<Self, DecodeError>

where B: Buf, Self: Default,

Decodes a length-delimited instance of the message from the buffer.

fn merge<B>(&mut self, buf: B) -> Result<(), DecodeError>

where B: Buf, Self: Sized,

Decodes an instance of the message from a buffer, and merges it into self.

fn merge_length_delimited<B>(&mut self, buf: B) -> Result<(), DecodeError>

where B: Buf, Self: Sized,

Decodes a length-delimited instance of the message from buffer, and merges it into self.

impl PartialEq for Header

fn eq(&self, other: &Header) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for Header