proxy example usedirect graph gateway backend

examples/gateway/proxy/main.go

@@ -7,9 +7,7 @@ import (
 	"net/http"
 	"strconv"
 
-	"github.com/ipfs/boxo/blockservice"
 	"github.com/ipfs/boxo/examples/gateway/common"
-	"github.com/ipfs/boxo/exchange/offline"
 	"github.com/ipfs/boxo/gateway"
 )
 
@@ -37,14 +35,11 @@ func main() {
 		log.Fatal(err)
 	}
 
-	// Sets up the exchange, which will proxy the block requests to the given gateway.
-	blockService := blockservice.New(blockStore, offline.Exchange(blockStore))
-
 	// Sets up the routing system, which will proxy the IPNS routing requests to the given gateway.
 	routing := newProxyRouting(*gatewayUrlPtr, nil)
 
 	// Creates the gateway with the block service and the routing.
-	backend, err := gateway.NewBlocksBackend(blockService, gateway.WithValueStore(routing))
+	backend, err := gateway.NewGraphGatewayBackend(blockStore, gateway.WithValueStore(routing))
 	if err != nil {
 		log.Fatal(err)
 	}