kubo/core/coreapi/interface/pubsub.go
Łukasz Magiera 51bb9d6843 coreapi: implement pubsub api
License: MIT
Signed-off-by: Łukasz Magiera <magik6k@gmail.com>
2018-10-05 11:49:36 -07:00

44 lines
1.1 KiB
Go

package iface
import (
"context"
"io"
options "github.com/ipfs/go-ipfs/core/coreapi/interface/options"
peer "gx/ipfs/QmQsErDt8Qgw1XrsXf2BpEzDgGWtB1YLsTAARBup5b6B9W/go-libp2p-peer"
)
// PubSubSubscription is an active PubSub subscription
type PubSubSubscription interface {
io.Closer
// Next return the next incoming message
Next(context.Context) (PubSubMessage, error)
}
// PubSubMessage is a single PubSub message
type PubSubMessage interface {
// From returns id of a peer from which the message has arrived
From() peer.ID
// Data returns the message body
Data() []byte
}
// PubSubAPI specifies the interface to PubSub
type PubSubAPI interface {
// Ls lists subscribed topics by name
Ls(context.Context) ([]string, error)
// Peers list peers we are currently pubsubbing with
// TODO: WithTopic
Peers(context.Context, ...options.PubSubPeersOption) ([]peer.ID, error)
// Publish a message to a given pubsub topic
Publish(context.Context, string, []byte) error
// Subscribe to messages on a given topic
Subscribe(context.Context, string, ...options.PubSubSubscribeOption) (PubSubSubscription, error)
}