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// Copyright (c) The go-grpc-middleware Authors.
// Licensed under the Apache License 2.0.
package realip_test
import (
"net/netip"
"github.com/grpc-ecosystem/go-grpc-middleware/v2/interceptors/realip"
"google.golang.org/grpc"
)
// Simple example of a unary server initialization code.
func ExampleUnaryServerInterceptorOpts() {
// Define list of trusted peers from which we accept forwarded-for and
// real-ip headers.
trustedPeers := []netip.Prefix{
netip.MustParsePrefix("127.0.0.1/32"),
}
// Define headers to look for in the incoming request.
headers := []string{realip.XForwardedFor, realip.XRealIp}
// Consider that there is one proxy in front,
// so the real client ip will be rightmost - 1 in the csv list of X-Forwarded-For
// Optionally you can specify TrustedProxies
opts := []realip.Option{
realip.WithTrustedPeers(trustedPeers),
realip.WithHeaders(headers),
realip.WithTrustedProxiesCount(1),
}
_ = grpc.NewServer(
grpc.ChainUnaryInterceptor(
realip.UnaryServerInterceptorOpts(opts...),
),
)
}
// Simple example of a streaming server initialization code.
func ExampleStreamServerInterceptorOpts() {
// Define list of trusted peers from which we accept forwarded-for and
// real-ip headers.
trustedPeers := []netip.Prefix{
netip.MustParsePrefix("127.0.0.1/32"),
}
// Define headers to look for in the incoming request.
headers := []string{realip.XForwardedFor, realip.XRealIp}
// Consider that there is one proxy in front,
// so the real client ip will be rightmost - 1 in the csv list of X-Forwarded-For
// Optionally you can specify TrustedProxies
opts := []realip.Option{
realip.WithTrustedPeers(trustedPeers),
realip.WithHeaders(headers),
realip.WithTrustedProxiesCount(1),
}
_ = grpc.NewServer(
grpc.ChainStreamInterceptor(
realip.StreamServerInterceptorOpts(opts...),
),
)
}
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