Struct Header

pub struct Header {

    pub version: Version,
    pub chain_id: Id,
    pub height: Height,
    pub time: Time,
    pub last_block_id: Option<Id>,
    pub last_commit_hash: Option<Hash>,
    pub data_hash: Option<Hash>,
    pub validators_hash: Hash,
    pub next_validators_hash: Hash,
    pub consensus_hash: Hash,
    pub app_hash: AppHash,
    pub last_results_hash: Option<Hash>,
    pub evidence_hash: Option<Hash>,
    pub proposer_address: Id,
}

Block Header values contain metadata about the block and about the consensus, as well as commitments to the data in the current block, the previous block, and the results returned by the application.

https://github.com/tendermint/spec/blob/d46cd7f573a2c6a2399fcab2cde981330aa63f37/spec/core/data_structures.md#header

Fields

version: Version

Header version

chain_id: Id

Chain ID

height: Height

Current block height

time: Time

Current timestamp

last_block_id: Option<Id>

Previous block info

last_commit_hash: Option<Hash>

Commit from validators from the last block

data_hash: Option<Hash>

Merkle root of transaction hashes

validators_hash: Hash

Validators for the current block

next_validators_hash: Hash

Validators for the next block

consensus_hash: Hash

Consensus params for the current block

app_hash: AppHash

State after txs from the previous block

last_results_hash: Option<Hash>

Root hash of all results from the txs from the previous block

evidence_hash: Option<Hash>

Hash of evidence included in the block

proposer_address: Id

Original proposer of the block

Implementations

impl Header

pub fn hash(&self) -> Hash

Computes the hash of this header.

pub fn hash_with<H>(&self) -> Hash

where H: MerkleHash + Sha256 + Default,

Hash this header with a Merkle hasher provided by a crypto provider.

Trait Implementations

impl Clone for Header

fn clone(&self) -> Header

Returns a copy 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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Header

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl From<Header> for Header

fn from(value: Header) -> Self

Converts to this type from the input type.

impl From<Header> for Header

fn from(value: Header) -> Self

Converts to this type from the input type.

impl From<Header> for Header

fn from(value: Header) -> Self

Converts to this type from the input type.

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 Protobuf<Header> for Header

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

where B: BufMut,

Encode into a buffer in Protobuf format.

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

where B: BufMut,

Encode with a length-delimiter to a buffer in Protobuf format.

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

where B: Buf,

Constructor that attempts to decode an instance from a buffer.

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

where B: Buf,

Constructor that attempts to decode a length-delimited instance from the buffer.

fn encoded_len(self) -> usize

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

fn encode_vec(self) -> Vec<u8>

Encodes into a Protobuf-encoded Vec<u8>.

fn decode_vec(v: &[u8]) -> Result<Self, Error>

Constructor that attempts to decode a Protobuf-encoded instance from a Vec<u8> (or equivalent).

fn encode_length_delimited_vec(self) -> Vec<u8>

Encode with a length-delimiter to a Vec<u8> Protobuf-encoded message.

fn decode_length_delimited_vec(v: &[u8]) -> Result<Self, Error>

Constructor that attempts to decode a Protobuf-encoded instance with a length-delimiter from a Vec<u8> or equivalent.

impl Protobuf<Header> for Header

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

where B: BufMut,

Encode into a buffer in Protobuf format.

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

where B: BufMut,

Encode with a length-delimiter to a buffer in Protobuf format.

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

where B: Buf,

Constructor that attempts to decode an instance from a buffer.

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

where B: Buf,

Constructor that attempts to decode a length-delimited instance from the buffer.

fn encoded_len(self) -> usize

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

fn encode_vec(self) -> Vec<u8>

Encodes into a Protobuf-encoded Vec<u8>.

fn decode_vec(v: &[u8]) -> Result<Self, Error>

Constructor that attempts to decode a Protobuf-encoded instance from a Vec<u8> (or equivalent).

fn encode_length_delimited_vec(self) -> Vec<u8>

Encode with a length-delimiter to a Vec<u8> Protobuf-encoded message.

fn decode_length_delimited_vec(v: &[u8]) -> Result<Self, Error>

Constructor that attempts to decode a Protobuf-encoded instance with a length-delimiter from a Vec<u8> or equivalent.

impl Protobuf<Header> for Header

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

where B: BufMut,

Encode into a buffer in Protobuf format.

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

where B: BufMut,

Encode with a length-delimiter to a buffer in Protobuf format.

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

where B: Buf,

Constructor that attempts to decode an instance from a buffer.

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

where B: Buf,

Constructor that attempts to decode a length-delimited instance from the buffer.

fn encoded_len(self) -> usize

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

fn encode_vec(self) -> Vec<u8>

Encodes into a Protobuf-encoded Vec<u8>.

fn decode_vec(v: &[u8]) -> Result<Self, Error>

Constructor that attempts to decode a Protobuf-encoded instance from a Vec<u8> (or equivalent).

fn encode_length_delimited_vec(self) -> Vec<u8>

Encode with a length-delimiter to a Vec<u8> Protobuf-encoded message.

fn decode_length_delimited_vec(v: &[u8]) -> Result<Self, Error>

Constructor that attempts to decode a Protobuf-encoded instance with a length-delimiter from a Vec<u8> or equivalent.

impl Serialize for Header

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl TryFrom<Header> for Header

type Error = Error

The type returned in the event of a conversion error.

fn try_from(value: RawHeader) -> Result<Self, Self::Error>

Performs the conversion.

impl TryFrom<Header> for Header

type Error = Error

The type returned in the event of a conversion error.

fn try_from(value: RawHeader) -> Result<Self, Self::Error>

Performs the conversion.

impl TryFrom<Header> for Header

type Error = Error

The type returned in the event of a conversion error.

fn try_from(value: RawHeader) -> Result<Self, Self::Error>

Performs the conversion.

impl Eq for Header

impl StructuralPartialEq for Header