diff --git a/CHANGELOG.md b/CHANGELOG.md
index 850d6681c..fd3f9122c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -8,8 +8,10 @@ Inspired from [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)
 - Adds the `Routing` field in SearchHit interface. ([#516](https://github.com/opensearch-project/opensearch-go/pull/516))
 - Adds the `SearchPipelines` field to `SearchParams` ([#532](https://github.com/opensearch-project/opensearch-go/pull/532))
 - Adds support for OpenSearch 2.14 ([#552](https://github.com/opensearch-project/opensearch-go/pull/552))
+- Adds the `Caches` field to Node stats ([#572](https://github.com/opensearch-project/opensearch-go/pull/572))
 
 ### Changed
+- Security roles get response struct has its own sub structs without omitempty ([#572](https://github.com/opensearch-project/opensearch-go/pull/572))
 
 ### Deprecated
 
@@ -19,6 +21,10 @@ Inspired from [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)
 
 - Fixes empty request body on retry with compression enabled ([#543](https://github.com/opensearch-project/opensearch-go/pull/543))
 - Fixes `Conditions` in `PolicyStateTransition` of ISM plugin ([#556](https://github.com/opensearch-project/opensearch-go/pull/556))
+- Fixes integration test response validation when response is null ([#572](https://github.com/opensearch-project/opensearch-go/pull/572))
+- Adjust security Role struct for FLS from string to []string ([#572](https://github.com/opensearch-project/opensearch-go/pull/572))
+- Fixes wrong response parsing for indices mapping and recovery ([#572](https://github.com/opensearch-project/opensearch-go/pull/572))
+- Fixes wrong response parsing for security get requests ([#572](https://github.com/opensearch-project/opensearch-go/pull/572))
 
 ### Security
 
diff --git a/internal/test/helper.go b/internal/test/helper.go
index da03ca106..ebea0ad98 100644
--- a/internal/test/helper.go
+++ b/internal/test/helper.go
@@ -140,7 +140,7 @@ func CompareRawJSONwithParsedJSON(t *testing.T, resp any, rawResp *opensearch.Re
 		operations := make([]jsondiff.Operation, 0)
 		for _, operation := range patch {
 			// different opensearch version added more field, only check if we miss some fields
-			if operation.Type != "add" {
+			if operation.Type != "add" || (operation.Type == "add" && operation.Path == "") {
 				operations = append(operations, operation)
 			}
 		}
diff --git a/opensearchapi/api_indices-mapping.go b/opensearchapi/api_indices-mapping.go
index 64d17a597..4b10f8aab 100644
--- a/opensearchapi/api_indices-mapping.go
+++ b/opensearchapi/api_indices-mapping.go
@@ -60,7 +60,7 @@ func (c mappingClient) Field(ctx context.Context, req *MappingFieldReq) (*Mappin
 		data MappingFieldResp
 		err  error
 	)
-	if data.response, err = c.apiClient.do(ctx, req, &data); err != nil {
+	if data.response, err = c.apiClient.do(ctx, req, &data.Indices); err != nil {
 		return &data, err
 	}
 
diff --git a/opensearchapi/api_indices.go b/opensearchapi/api_indices.go
index 96bc8a928..bf332b04c 100644
--- a/opensearchapi/api_indices.go
+++ b/opensearchapi/api_indices.go
@@ -215,7 +215,7 @@ func (c indicesClient) Recovery(ctx context.Context, req *IndicesRecoveryReq) (*
 		data IndicesRecoveryResp
 		err  error
 	)
-	if data.response, err = c.apiClient.do(ctx, req, &data); err != nil {
+	if data.response, err = c.apiClient.do(ctx, req, &data.Indices); err != nil {
 		return &data, err
 	}
 
diff --git a/opensearchapi/api_nodes-stats.go b/opensearchapi/api_nodes-stats.go
index 9f88916bf..29de816f0 100644
--- a/opensearchapi/api_nodes-stats.go
+++ b/opensearchapi/api_nodes-stats.go
@@ -111,6 +111,7 @@ type NodesStats struct {
 	SegmentReplicationBackpressure NodesStatsSegmentReplicationBackpressure `json:"segment_replication_backpressure"`
 	Repositories                   []json.RawMessage                        `json:"repositories"`
 	AdmissionControl               NodesStatsAdmissionControl               `json:"admission_control"`
+	Caches                         NodesStatsCaches                         `json:"caches"`
 }
 
 // NodesStatsIndices is a sub type of NodesStats representing Indices information of the node
@@ -702,7 +703,7 @@ type NodesStatsSegmentReplicationBackpressure struct {
 	TotalRejectedRequests int `json:"total_rejected_requests"`
 }
 
-// NodesStatsAdmissionControl is a sub of NodesStats
+// NodesStatsAdmissionControl is a sub type of NodesStats
 type NodesStatsAdmissionControl struct {
 	GlobalCPUUsage struct {
 		Transport struct {
@@ -715,3 +716,15 @@ type NodesStatsAdmissionControl struct {
 		} `json:"transport"`
 	} `json:"global_io_usage"`
 }
+
+// NodesStatsCaches is a sub type of NodesStats
+type NodesStatsCaches struct {
+	RequestCache struct {
+		SizeInBytes int    `json:"size_in_bytes"`
+		Evictions   int    `json:"evictions"`
+		HitCount    int    `json:"hit_count"`
+		MissCount   int    `json:"miss_count"`
+		ItemCount   int    `json:"item_count"`
+		StoreName   string `json:"store_name"`
+	} `json:"request_cache"`
+}
diff --git a/plugins/security/api_actiongroups.go b/plugins/security/api_actiongroups.go
index a5c5755a6..28f31f5ee 100644
--- a/plugins/security/api_actiongroups.go
+++ b/plugins/security/api_actiongroups.go
@@ -24,7 +24,7 @@ func (c actiongroupsClient) Get(ctx context.Context, req *ActionGroupsGetReq) (A
 		data ActionGroupsGetResp
 		err  error
 	)
-	if data.response, err = c.apiClient.do(ctx, req, &data); err != nil {
+	if data.response, err = c.apiClient.do(ctx, req, &data.Groups); err != nil {
 		return data, err
 	}
 
diff --git a/plugins/security/api_internalusers.go b/plugins/security/api_internalusers.go
index 88399be0f..5fe9f756a 100644
--- a/plugins/security/api_internalusers.go
+++ b/plugins/security/api_internalusers.go
@@ -24,7 +24,7 @@ func (c internalusersClient) Get(ctx context.Context, req *InternalUsersGetReq)
 		data InternalUsersGetResp
 		err  error
 	)
-	if data.response, err = c.apiClient.do(ctx, req, &data); err != nil {
+	if data.response, err = c.apiClient.do(ctx, req, &data.Users); err != nil {
 		return data, err
 	}
 
diff --git a/plugins/security/api_roles-get.go b/plugins/security/api_roles-get.go
index 3108d4902..b208702b5 100644
--- a/plugins/security/api_roles-get.go
+++ b/plugins/security/api_roles-get.go
@@ -52,11 +52,26 @@ func (r RolesGetResp) Inspect() Inspect {
 
 // RolesGetItem is a sub type of RolesGetResp containing information about a role
 type RolesGetItem struct {
-	Reserved           bool                    `json:"reserved"`
-	Hidden             bool                    `json:"hidden"`
-	Description        string                  `json:"description"`
-	ClusterPermissions []string                `json:"cluster_permissions"`
-	IndexPermissions   []RolesIndexPermission  `json:"index_permissions"`
-	TenantPermissions  []RolesTenantPermission `json:"tenant_permissions"`
-	Statis             bool                    `json:"static"`
+	Reserved           bool                       `json:"reserved"`
+	Hidden             bool                       `json:"hidden"`
+	Description        string                     `json:"description"`
+	ClusterPermissions []string                   `json:"cluster_permissions"`
+	IndexPermissions   []RolesGetIndexPermission  `json:"index_permissions"`
+	TenantPermissions  []RolesGetTenantPermission `json:"tenant_permissions"`
+	Statis             bool                       `json:"static"`
+}
+
+// RolesGetIndexPermission contains index permissions and is used for Get and Put requests
+type RolesGetIndexPermission struct {
+	IndexPatterns  []string `json:"index_patterns"`
+	DLS            string   `json:"dls"`
+	FLS            []string `json:"fls"`
+	MaskedFields   []string `json:"masked_fields"`
+	AllowedActions []string `json:"allowed_actions"`
+}
+
+// RolesGetTenantPermission contains tenant permissions and is used for Get and Put requests
+type RolesGetTenantPermission struct {
+	TenantPatterns []string `json:"tenant_patterns"`
+	AllowedActions []string `json:"allowed_actions"`
 }
diff --git a/plugins/security/api_roles-put.go b/plugins/security/api_roles-put.go
index a00fd7fd1..5b9e7c1a6 100644
--- a/plugins/security/api_roles-put.go
+++ b/plugins/security/api_roles-put.go
@@ -58,3 +58,18 @@ type RolesPutResp struct {
 func (r RolesPutResp) Inspect() Inspect {
 	return Inspect{Response: r.response}
 }
+
+// RolesIndexPermission contains index permissions and is used for Get and Put requests
+type RolesIndexPermission struct {
+	IndexPatterns  []string `json:"index_patterns,omitempty"`
+	DLS            string   `json:"dls,omitempty"`
+	FLS            []string `json:"fls,omitempty"`
+	MaskedFields   []string `json:"masked_fields,omitempty"`
+	AllowedActions []string `json:"allowed_actions,omitempty"`
+}
+
+// RolesTenantPermission contains tenant permissions and is used for Get and Put requests
+type RolesTenantPermission struct {
+	TenantPatterns []string `json:"tenant_patterns,omitempty"`
+	AllowedActions []string `json:"allowed_actions,omitempty"`
+}
diff --git a/plugins/security/api_roles.go b/plugins/security/api_roles.go
index 8f904e2f5..4c627bb6c 100644
--- a/plugins/security/api_roles.go
+++ b/plugins/security/api_roles.go
@@ -24,7 +24,7 @@ func (c rolesClient) Get(ctx context.Context, req *RolesGetReq) (RolesGetResp, e
 		data RolesGetResp
 		err  error
 	)
-	if data.response, err = c.apiClient.do(ctx, req, &data); err != nil {
+	if data.response, err = c.apiClient.do(ctx, req, &data.Roles); err != nil {
 		return data, err
 	}
 
@@ -69,18 +69,3 @@ func (c rolesClient) Patch(ctx context.Context, req RolesPatchReq) (RolesPatchRe
 
 	return data, nil
 }
-
-// RolesIndexPermission contains index permissions and is used for Get and Put requests
-type RolesIndexPermission struct {
-	IndexPatterns  []string `json:"index_patterns,omitempty"`
-	DLS            string   `json:"dls,omitempty"`
-	FLS            string   `json:"fls,omitempty"`
-	MaskedFields   []string `json:"masked_fields,omitempty"`
-	AllowedActions []string `json:"allowed_actions,omitempty"`
-}
-
-// RolesTenantPermission contains tenant permissions and is used for Get and Put requests
-type RolesTenantPermission struct {
-	TenantPatterns []string `json:"tenant_patterns,omitempty"`
-	AllowedActions []string `json:"allowed_actions,omitempty"`
-}
diff --git a/plugins/security/api_rolesmapping.go b/plugins/security/api_rolesmapping.go
index d3062a79e..583414571 100644
--- a/plugins/security/api_rolesmapping.go
+++ b/plugins/security/api_rolesmapping.go
@@ -24,7 +24,7 @@ func (c rolesmappingClient) Get(ctx context.Context, req *RolesMappingGetReq) (R
 		data RolesMappingGetResp
 		err  error
 	)
-	if data.response, err = c.apiClient.do(ctx, req, &data); err != nil {
+	if data.response, err = c.apiClient.do(ctx, req, &data.RolesMapping); err != nil {
 		return data, err
 	}
 
diff --git a/plugins/security/api_tenants.go b/plugins/security/api_tenants.go
index 2067b95a3..a4d60a6a4 100644
--- a/plugins/security/api_tenants.go
+++ b/plugins/security/api_tenants.go
@@ -24,7 +24,7 @@ func (c tenantsClient) Get(ctx context.Context, req *TenantsGetReq) (TenantsGetR
 		data TenantsGetResp
 		err  error
 	)
-	if data.response, err = c.apiClient.do(ctx, req, &data); err != nil {
+	if data.response, err = c.apiClient.do(ctx, req, &data.Tenants); err != nil {
 		return data, err
 	}