diff --git a/internal/configs/sharding/localnet.go b/internal/configs/sharding/localnet.go
index 41a870bdd..5985dfd2c 100644
--- a/internal/configs/sharding/localnet.go
+++ b/internal/configs/sharding/localnet.go
@@ -1,6 +1,7 @@
 package shardingconfig
 
 import (
+	"fmt"
 	"math/big"
 	"time"
 
@@ -133,7 +134,16 @@ func (ls localnetSchedule) GetNetworkID() NetworkID {
 
 // GetShardingStructure is the sharding structure for localnet.
 func (ls localnetSchedule) GetShardingStructure(numShard, shardID int) []map[string]interface{} {
-	return genShardingStructure(numShard, shardID, LocalNetHTTPPattern, LocalNetWSPattern)
+	res := []map[string]interface{}{}
+	for i := 0; i < numShard; i++ {
+		res = append(res, map[string]interface{}{
+			"current": int(shardID) == i,
+			"shardID": i,
+			"http":    fmt.Sprintf("http://127.0.0.1:%d", 9500+i),
+			"ws":      fmt.Sprintf("ws://127.0.0.1:%d", 9800+i),
+		})
+	}
+	return res
 }
 
 var localnetReshardingEpoch = []*big.Int{big.NewInt(0), big.NewInt(localnetV1Epoch), big.NewInt(localnetV2Epoch)}
diff --git a/internal/hmyapi/blockchain.go b/internal/hmyapi/blockchain.go
index a99675c21..359672536 100644
--- a/internal/hmyapi/blockchain.go
+++ b/internal/hmyapi/blockchain.go
@@ -25,14 +25,6 @@ const (
 	defaultFromAddress = "0x0000000000000000000000000000000000000000"
 )
 
-// Constants for sharding structure.
-const (
-	MainNetHTTPPattern = "http://s%d.t.hmny.io:9500"
-	MainNetWSPattern   = "ws://s%d.t.hmny.io:9800"
-	TestNetHTTPPattern = "http://s%d.b.hmny.io:9500"
-	TestNetWSPattern   = "ws://s%d.s.hmny.io:9800"
-)
-
 // PublicBlockChainAPI provides an API to access the Harmony blockchain.
 // It offers only methods that operate on public data that is freely available to anyone.
 type PublicBlockChainAPI struct {
@@ -71,20 +63,6 @@ func (s *PublicBlockChainAPI) GetBlockByHash(ctx context.Context, blockHash comm
 	return nil, err
 }
 
-// GenShardingStructure return sharding structure, given shard number and its patterns.
-func GenShardingStructure(shardNum, shardID uint32, httpPattern, wsPattern string) []map[string]interface{} {
-	res := []map[string]interface{}{}
-	for i := 0; i < int(shardNum); i++ {
-		res = append(res, map[string]interface{}{
-			"current": int(shardID) == i,
-			"shardID": i,
-			"http":    fmt.Sprintf(httpPattern, i),
-			"ws":      fmt.Sprintf(wsPattern, i),
-		})
-	}
-	return res
-}
-
 // GetShardingStructure returns an array of sharding structures.
 func (s *PublicBlockChainAPI) GetShardingStructure(ctx context.Context) ([]map[string]interface{}, error) {
 	// Get header and number of shards.