py-libp2p/libp2p/network/network_interface.py

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from abc import ABC, abstractmethod
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from typing import TYPE_CHECKING, Dict, Sequence
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from multiaddr import Multiaddr
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from libp2p.peer.id import ID
from libp2p.peer.peerstore_interface import IPeerStore
from libp2p.stream_muxer.abc import IMuxedConn
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from libp2p.transport.listener_interface import IListener
from libp2p.typing import StreamHandlerFn, TProtocol
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from .stream.net_stream_interface import INetStream
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if TYPE_CHECKING:
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from .notifee_interface import INotifee # noqa: F401
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class INetwork(ABC):
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peerstore: IPeerStore
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connections: Dict[ID, IMuxedConn]
listeners: Dict[str, IListener]
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@abstractmethod
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def get_peer_id(self) -> ID:
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"""
:return: the peer id
"""
@abstractmethod
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async def dial_peer(self, peer_id: ID) -> IMuxedConn:
"""
dial_peer try to create a connection to peer_id
:param peer_id: peer if we want to dial
:raises SwarmException: raised when an error occurs
:return: muxed connection
"""
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@abstractmethod
def set_stream_handler(
self, protocol_id: TProtocol, stream_handler: StreamHandlerFn
) -> None:
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"""
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:param protocol_id: protocol id used on stream
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:param stream_handler: a stream handler instance
"""
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@abstractmethod
async def new_stream(
self, peer_id: ID, protocol_ids: Sequence[TProtocol]
) -> INetStream:
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"""
:param peer_id: peer_id of destination
:param protocol_ids: available protocol ids to use for stream
:return: net stream instance
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"""
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@abstractmethod
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async def listen(self, *multiaddrs: Sequence[Multiaddr]) -> bool:
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"""
:param multiaddrs: one or many multiaddrs to start listening on
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:return: True if at least one success
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"""
@abstractmethod
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def notify(self, notifee: "INotifee") -> bool:
"""
:param notifee: object implementing Notifee interface
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:return: true if notifee registered successfully, false otherwise
"""
@abstractmethod
async def close(self) -> None:
pass
@abstractmethod
async def close_peer(self, peer_id: ID) -> None:
pass