diff --git a/examples/query/main.go b/examples/query/main.go
index 1494f77..d7258c3 100644
--- a/examples/query/main.go
+++ b/examples/query/main.go
@@ -31,7 +31,7 @@ func main() {
 	case "readParams":
 		readParams(ctx, client)
 	case "readUtxos":
-		readUtxos(ctx, client, "71a7498f086d378ec5e558581286629b678be1dd65d5d4e2a5d634ba6fdf8299")
+		readUtxos(ctx, client, "71a7498f086d378ec5e558581286629b678be1dd65d5d4e2a5d634ba6fdf8299", 0)
 	case "searchUtxos":
 		searchUtxos(ctx, client, "60c0359ebb7d0688d79064bd118c99c8b87b5853e3af59245bb97e84d2")
 	default:
@@ -49,15 +49,23 @@ func readParams(ctx context.Context, client *utxorpc.UtxorpcClient) {
 		utxorpc.HandleError(err)
 	}
 	fmt.Printf("Response: %+v\n", resp)
+
+	if resp.Msg.LedgerTip != nil {
+		fmt.Printf("Ledger Tip: Slot: %d, Hash: %x\n", resp.Msg.LedgerTip.Slot, resp.Msg.LedgerTip.Hash)
+	}
+	if resp.Msg.Values != nil {
+		fmt.Printf("Cardano: %+v\n", resp.Msg.Values)
+	}
 }
 
-func readUtxos(ctx context.Context, client *utxorpc.UtxorpcClient, txHashStr string) {
+func readUtxos(ctx context.Context, client *utxorpc.UtxorpcClient, txHashStr string, txIndex uint32) {
 	txHash, err := hex.DecodeString(txHashStr)
 	if err != nil {
 		log.Fatalf("failed to decode hex string: %v", err)
 	}
 	txoRef := &query.TxoRef{
-		Hash: txHash,
+		Hash:  txHash,
+		Index: txIndex,
 	}
 
 	req := connect.NewRequest(&query.ReadUtxosRequest{
@@ -70,6 +78,8 @@ func readUtxos(ctx context.Context, client *utxorpc.UtxorpcClient, txHashStr str
 		utxorpc.HandleError(err)
 	}
 
+	fmt.Printf("Response: %+v\n", resp)
+
 	if resp.Msg.LedgerTip != nil {
 		fmt.Printf("Ledger Tip:\n  Slot: %d\n  Hash: %x\n", resp.Msg.LedgerTip.Slot, resp.Msg.LedgerTip.Hash)
 	}
@@ -101,9 +111,6 @@ func searchUtxos(ctx context.Context, client *utxorpc.UtxorpcClient, rawAddress
 						Address: &cardano.AddressPattern{
 							ExactAddress: exactAddress,
 						},
-						Asset: &cardano.AssetPattern{
-							// Populate the fields as necessary
-						},
 					},
 				},
 			},
@@ -117,6 +124,8 @@ func searchUtxos(ctx context.Context, client *utxorpc.UtxorpcClient, rawAddress
 		utxorpc.HandleError(err)
 	}
 
+	fmt.Printf("Response: %+v\n", resp)
+
 	if resp.Msg.LedgerTip != nil {
 		fmt.Printf("Ledger Tip:\n  Slot: %d\n  Hash: %x\n", resp.Msg.LedgerTip.Slot, resp.Msg.LedgerTip.Hash)
 	}
diff --git a/examples/sync/main.go b/examples/sync/main.go
index e6d7489..8b60a15 100644
--- a/examples/sync/main.go
+++ b/examples/sync/main.go
@@ -22,22 +22,69 @@ func main() {
 		}),
 	)
 
-	// fetchBlock(ctx, client)
-	followTip(ctx, client, "235f9a217b826276d6cdfbb05c11572a06aef092535b6df8c682d501af59c230", 65017558, nil)
-	// followTip(ctx, client, "")
+	// Set mode to "fetchBlock" or "followTip" to select the desired example.
+	var mode string = "followTip"
+
+	switch mode {
+	case "fetchBlock":
+		fetchBlock(ctx, client, "235f9a217b826276d6cdfbb05c11572a06aef092535b6df8c682d501af59c230", 65017558, nil)
+	case "followTip":
+		followTip(ctx, client, "235f9a217b826276d6cdfbb05c11572a06aef092535b6df8c682d501af59c230", 65017558, nil)
+	default:
+		fmt.Println("Unknown mode:", mode)
+	}
 }
 
-func fetchBlock(ctx context.Context, client *utxorpc.UtxorpcClient) {
-	req := connect.NewRequest(&sync.FetchBlockRequest{})
-	client.AddHeadersToRequest(req)
+func fetchBlock(ctx context.Context, client *utxorpc.UtxorpcClient, blockHash string, blockIndex int64, fieldMaskPaths []string) {
+	var req *connect.Request[sync.FetchBlockRequest]
+	var intersect []*sync.BlockRef
+	var fieldMask *fieldmaskpb.FieldMask
+
+	// Construct the BlockRef based on the provided parameters
+	blockRef := &sync.BlockRef{}
+	if blockHash != "" {
+		hash, err := hex.DecodeString(blockHash)
+		if err != nil {
+			log.Fatalf("failed to decode hex string: %v", err)
+		}
+		blockRef.Hash = hash
+	}
+	// We assume blockIndex can be 0 or any positive number
+	if blockIndex > -1 {
+		blockRef.Index = uint64(blockIndex)
+	}
+
+	// Only add blockRef to intersect if at least one of blockHash or blockIndex is provided
+	if blockHash != "" || blockIndex > -1 {
+		intersect = []*sync.BlockRef{blockRef}
+	}
 
+	// Construct the FieldMask if paths are provided
+	if len(fieldMaskPaths) > 0 {
+		fieldMask = &fieldmaskpb.FieldMask{
+			Paths: fieldMaskPaths,
+		}
+	}
+
+	// Create the FetchBlockRequest
+	req = connect.NewRequest(&sync.FetchBlockRequest{
+		Ref: intersect,
+		FieldMask: fieldMask,
+	})
+
+	// Print BlockRef details if intersect is provided
+	if len(intersect) > 0 {
+		fmt.Printf("Blockref: %d, %x\n", req.Msg.Ref[0].Index, req.Msg.Ref[0].Hash)
+	}
+
+	client.AddHeadersToRequest(req)
 	fmt.Println("connecting to utxorpc host:", client.URL())
-	chainSync, err := client.Sync.FetchBlock(ctx, req)
+	resp, err := client.Sync.FetchBlock(ctx, req)
 	if err != nil {
 		utxorpc.HandleError(err)
 	}
-	fmt.Println("connected to utxorpc...")
-	for i, blockRef := range chainSync.Msg.Block {
+	fmt.Printf("Response: %+v\n", resp)
+	for i, blockRef := range resp.Msg.Block {
 		fmt.Printf("Block[%d]:\n", i)
 		fmt.Printf("Index: %d\n", blockRef.GetCardano().GetHeader().GetSlot())
 		fmt.Printf("Hash: %x\n", blockRef.GetCardano().GetHeader().GetHash())