Struct Chain 

pub struct Chain {
    pub links: Vec<ChainLink>,
}

A cryptographic chain of data. Each link proves it came after the previous one.

Fields

links: Vec<ChainLink>

Implementations

impl Chain

pub fn new(data: &str) -> Self

Start a new chain with a genesis link

pub fn append(&mut self, data: &str) -> &ChainLink

Append a new link referencing the previous link’s fingerprint

pub fn verify(&self) -> ChainVerifyResult

Verify the entire chain - every link’s data AND every link’s reference to the previous link’s fingerprint

pub fn len(&self) -> usize

Get the length of the chain

pub fn is_empty(&self) -> bool

Returns true if the chain has no links.

pub fn to_json(&self) -> Result<String, UniversalError>

Serialize to JSON - safe to store in Redis, Postgres, send anywhere

pub fn from_json(s: &str) -> Result<Self, UniversalError>

Deserialize a chain from a JSON string.

pub fn report(&self) -> String

Print a chain report

pub fn diff(a: &Chain, b: &Chain) -> ChainDiff

Compare two chains and find where they diverge.

pub fn merge(a: &Chain, b: &Chain) -> Result<Chain, UniversalError>

Merge two chains. One must be a prefix of the other. Returns the longer chain. If they diverge, returns an error.

Trait Implementations

impl Clone for Chain

fn clone(&self) -> Chain

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Chain

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Chain

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for Chain

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

where __S: Serializer,

Serialize this value into the given Serde serializer.