Struct Answer 

pub struct Answer {
    pub sdp: String,
    pub identity_pub_key: PublicKey,
    pub target_peer_id: PeerId,
}

WebRTC connection answer responding to an offer.

An Answer is sent in response to an Offer when a peer accepts a WebRTC connection request. It contains the answering peer’s SDP data and identity information necessary to complete the WebRTC connection establishment.

The answer includes:

• SDP data from the answering peer describing their connection capabilities
• Identity verification through the answerer’s public key
• Target confirmation ensuring the answer reaches the original offerer

Connection Process

After an answer is received, both peers have exchanged SDP data and can proceed with ICE negotiation to establish the direct WebRTC connection. The SDP data from both the offer and answer is used to create connection authentication credentials via ConnectionAuth.

Example Flow

Peer B receives Offer -> Validates -> Creates Answer -> Peer A receives Answer

Fields

sdp: String

Session Description Protocol (SDP) data from the answering peer describing their WebRTC connection capabilities and network information.

identity_pub_key: PublicKey

Answering peer’s identity public key for cryptographic authentication. Used to verify the identity of the peer responding to the connection offer.

target_peer_id: PeerId

Peer ID of the original offerer that this answer is responding to. Ensures the answer reaches the correct peer that initiated the connection.

Implementations

impl Answer

pub fn sdp_hash(&self) -> [u8; 32]

Computes the SHA-256 hash of this answer’s SDP data.

This hash is used for connection authentication and tamper detection during the WebRTC handshake process, complementing the offer’s SDP hash.

Returns

A 32-byte SHA-256 hash of the answer’s SDP data

Trait Implementations

impl Clone for Answer

fn clone(&self) -> Answer

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Answer

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Answer

fn deserialize<__D>( __deserializer: __D, ) -> Result<Answer, <__D as Deserializer<'de>>::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl From<Answer> for Signal

fn from(original: Answer) -> Signal

Converts to this type from the input type.

impl MallocSizeOf for Answer

fn size_of(&self, ops: &mut MallocSizeOfOps) -> usize

Measure the heap usage of all descendant heap-allocated structures, but not the space taken up by the value itself.

impl PartialEq for Answer

fn eq(&self, other: &Answer) -> 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 Serialize for Answer

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Eq for Answer

impl StructuralPartialEq for Answer