Struct libp2p_core::PeerId

pub struct PeerId { /* private fields */ }

Identifier of a peer of the network.

The data is a CIDv0 compatible multihash of the protobuf encoded public key of the peer as specified in specs/peer-ids.

Implementations

impl PeerId

pub fn from_public_key(key: &PublicKey) -> PeerId

Builds a PeerId from a public key.

pub fn from_bytes(data: &[u8]) -> Result<PeerId, Error>

Parses a PeerId from bytes.

pub fn from_multihash(multihash: Multihash) -> Result<PeerId, Multihash>

Tries to turn a Multihash into a PeerId.

If the multihash does not use a valid hashing algorithm for peer IDs, or the hash value does not satisfy the constraints for a hashed peer ID, it is returned as an Err.

pub fn try_from_multiaddr(address: &Multiaddr) -> Option<PeerId>

Tries to extract a PeerId from the given Multiaddr.

In case the given Multiaddr ends with /p2p/<peer-id>, this function will return the encapsulated PeerId, otherwise it will return None.

pub fn random() -> PeerId

Generates a random peer ID from a cryptographically secure PRNG.

This is useful for randomly walking on a DHT, or for testing purposes.

pub fn to_bytes(&self) -> Vec<u8>

Returns a raw bytes representation of this PeerId.

pub fn to_base58(&self) -> String

Returns a base-58 encoded string of this PeerId.

pub fn is_public_key(&self, public_key: &PublicKey) -> Option<bool>

Checks whether the public key passed as parameter matches the public key of this PeerId.

Returns None if this PeerIds hash algorithm is not supported when encoding the given public key, otherwise Some boolean as the result of an equality check.

Trait Implementations

impl AsRef<Multihash<64>> for PeerId

fn as_ref(&self) -> &Multihash

Converts this type into a shared reference of the (usually inferred) input type.

impl Clone for PeerId

fn clone(&self) -> PeerId

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for PeerId

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for PeerId

Available on crate feature serde only.

fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>where
    D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for PeerId

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

Formats the value using the given formatter.

impl From<&PublicKey> for PeerId

fn from(key: &PublicKey) -> PeerId

Converts to this type from the input type.

impl From<PeerId> for Multihash

fn from(peer_id: PeerId) -> Self

Converts to this type from the input type.

impl From<PeerId> for Vec<u8>

fn from(peer_id: PeerId) -> Self

Converts to this type from the input type.

impl From<PublicKey> for PeerId

fn from(key: PublicKey) -> PeerId

Converts to this type from the input type.

impl FromStr for PeerId

type Err = ParseError

The associated error which can be returned from parsing.

fn from_str(s: &str) -> Result<Self, Self::Err>

Parses a string s to return a value of this type.

impl Hash for PeerId

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)where
    H: Hasher,
    Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for PeerId

fn cmp(&self, other: &PeerId) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Selfwhere
    Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Selfwhere
    Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Selfwhere
    Self: Sized + PartialOrd<Self>,

Restrict a value to a certain interval.

impl PartialEq<PeerId> for PeerId

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

This method tests for self and other values to be equal, and is used by ==.

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

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

impl PartialOrd<PeerId> for PeerId

fn partial_cmp(&self, other: &PeerId) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

This method tests less than (for self and other) and is used by the < operator.

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

This method tests less than or equal to (for self and other) and is used by the <= operator.

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

This method tests greater than (for self and other) and is used by the > operator.

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

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl Serialize for PeerId

Available on crate feature serde only.

fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>where
    S: Serializer,

Serialize this value into the given Serde serializer.

impl TryFrom<Multihash<64>> for PeerId

type Error = Multihash<64>

The type returned in the event of a conversion error.

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

Performs the conversion.

impl TryFrom<Vec<u8, Global>> for PeerId

type Error = Vec<u8, Global>

The type returned in the event of a conversion error.

fn try_from(value: Vec<u8>) -> Result<Self, Self::Error>

Performs the conversion.

impl Copy for PeerId

impl Eq for PeerId

impl StructuralEq for PeerId

impl StructuralPartialEq for PeerId