Struct Builder 

pub struct Builder<E> { /* private fields */ }

Build & sign operations.

Implementations

impl<E> Builder<E>

where E: Extensions,

pub fn new() -> Self

pub fn body(self, bytes: impl AsRef<[u8]>) -> Self

Attach payload to operation.

pub fn chain(self, seq_num: SeqNum, backlink: Hash) -> Self

Sets the “hash chain” values of this operation: sequence number and backlink.

pub fn seq_num(self, seq_num: SeqNum) -> Self

Number of operations this author has published to this log, begins with 0 and is always incremented by 1 with each new operation by the same author.

pub fn backlink(self, backlink: Option<Hash>) -> Self

Hash of the previous operation of the same author and log. Can be omitted if first operation in log.

pub fn build(self, signing_key: &SigningKey, extensions: E) -> Header<E>

Encodes, signs and returns final header of operation.

A custom header extensions type can be set here as well when required. It will be embedded in the header. Set this to () (unit-type) when extensions are not necessary.

Trait Implementations

impl<E> Default for Builder<E>

where E: Extensions,

fn default() -> Self

Returns the “default value” for a type.