Source: peer.go in package google.golang.org/grpc/peer

* * Copyright 2014 gRPC authors. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http:www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. *

Package peer defines various peer information associated with RPCs and corresponding utils.

package peer

import (
	"context"
	"net"

	"google.golang.org/grpc/credentials"
)

Peer contains the information of the peer for an RPC, such as the address and authentication information.

Addr is the peer address.

AuthInfo is the authentication information of the transport. It is nil if there is no transport security being used.

	AuthInfo credentials.AuthInfo
}

type peerKey struct{}

NewContext creates a new context with peer information attached.

func NewContext(ctx context.Context, p *Peer) context.Context {
	return context.WithValue(ctx, peerKey{}, p)
}

FromContext returns the peer information in ctx if it exists.

func FromContext(ctx context.Context) (p *Peer, ok bool) {
	p, ok = ctx.Value(peerKey{}).(*Peer)
	return