diff --git a/services/frontend/src/components/Modal/network/form-utils.ts b/services/frontend/src/components/Modal/network/form-utils.ts
index fdaa24f..184056c 100644
--- a/services/frontend/src/components/Modal/network/form-utils.ts
+++ b/services/frontend/src/components/Modal/network/form-utils.ts
@@ -1,5 +1,11 @@
 import * as yup from "yup";
-import { IEditNetworkForm, INetworkNodeItem } from "../../../types";
+import {
+  IEditNetworkForm,
+  IIPAM,
+  INetworkNodeItem,
+  IPAMConfig
+} from "../../../types";
+import { pruneArray, pruneObject } from "../../../utils/forms";
 
 export const validationSchema = yup.object({
   entryName: yup
@@ -12,10 +18,7 @@ export const validationSchema = yup.object({
     .max(256, "Network name should be 256 characters or less")
     .required("Network name is required"),
 
-  driver: yup
-    .string()
-    .max(256, "Driver should be 256 characters or less")
-    .default("default"),
+  driver: yup.string().max(256, "Driver should be 256 characters or less"),
 
   configurations: yup.array(
     yup.object({
@@ -70,7 +73,7 @@ export const tabs = [
 export const initialValues: IEditNetworkForm = {
   entryName: "",
   networkName: "",
-  driver: "default",
+  driver: "",
   configurations: [],
   options: [],
   labels: []
@@ -93,30 +96,29 @@ export const getInitialValues = (node?: INetworkNodeItem): IEditNetworkForm => {
     networkName: name,
     driver: ipam?.driver ?? "",
     configurations:
-      ipam?.config.map((item) => ({
-        subnet: item.subnet,
-        ipRange: item.ip_range,
-        gateway: item.gateway,
-        auxAddresses: Object.entries(item.aux_addresses).map(
+      ipam?.config?.map((item) => ({
+        subnet: item.subnet ?? "",
+        ipRange: item.ip_range ?? "",
+        gateway: item.gateway ?? "",
+        auxAddresses: Object.entries(item.aux_addresses ?? []).map(
           ([hostName, ipAddress]) => ({
             hostName,
             ipAddress
           })
         )
       })) ?? [],
-    options: Object.keys(ipam?.options || {}).map((key) => {
-      if (!ipam) {
-        throw new Error("Control should not reach here.");
-      }
+    options: Object.keys(ipam?.options ?? {}).map((key) => {
       return {
         key,
-        value: ipam.options[key].toString()
+        value: ipam?.options?.[key].toString() ?? ""
       };
     }),
-    labels: Object.entries(labels as any).map(([key, value]: any) => ({
-      key,
-      value
-    }))
+    labels: labels
+      ? Object.entries(labels as any).map(([key, value]: any) => ({
+          key,
+          value
+        }))
+      : []
   };
 };
 
@@ -129,34 +131,63 @@ export const getFinalValues = (
   return {
     key: previous?.key ?? "network",
     type: "NETWORK",
+    position: {
+      left: 0,
+      top: 0
+    },
     inputs: previous?.inputs ?? [],
     outputs: previous?.outputs ?? [],
-    config: (previous as any)?.config ?? {},
     canvasConfig: {
       node_name: values.entryName
     },
     networkConfig: {
       name: values.networkName,
-      ipam: {
-        driver,
-        config: configurations.map((configuration) => ({
-          subnet: configuration.subnet,
-          ip_range: configuration.ipRange,
-          gateway: configuration.gateway,
-          aux_addresses: Object.fromEntries(
-            configuration.auxAddresses.map((auxAddress) => [
-              auxAddress.hostName,
-              auxAddress.ipAddress
-            ])
+      ipam: pruneObject({
+        driver: driver ? driver : undefined,
+        config: pruneArray(
+          configurations.map((configuration) =>
+            pruneObject({
+              subnet: configuration.subnet ? configuration.subnet : undefined,
+              ip_range: configuration.ipRange
+                ? configuration.ipRange
+                : undefined,
+              gateway: configuration.gateway
+                ? configuration.gateway
+                : undefined,
+              aux_addresses: (() => {
+                if (configuration.auxAddresses.length === 0) {
+                  return undefined;
+                }
+
+                /* We do not have to worry about empty `hostName` and `ipAddress`
+                 * values because Yup would report such values as error.
+                 */
+                return Object.fromEntries(
+                  configuration.auxAddresses.map((auxAddress) => [
+                    auxAddress.hostName,
+                    auxAddress.ipAddress
+                  ])
+                );
+              })()
+            })
           )
-        })),
-        options: Object.fromEntries(
-          options.map((option) => [option.key, option.value])
-        )
-      },
-      labels: Object.fromEntries(
-        labels.map((label) => [label.key, label.value])
-      )
+        ) as IPAMConfig[],
+        options: (() => {
+          if (options.length === 0) {
+            return undefined;
+          }
+
+          /* We do not have to worry about empty `key` and `value`
+           * values because Yup would report such values as error.
+           */
+          return Object.fromEntries(
+            options.map((option) => [option.key, option.value])
+          );
+        })()
+      }) as IIPAM,
+      labels: pruneObject(
+        Object.fromEntries(labels.map((label) => [label.key, label.value]))
+      ) as Record<string, string>
     }
-  } as any;
+  };
 };
diff --git a/services/frontend/src/components/Modal/service/form-utils.ts b/services/frontend/src/components/Modal/service/form-utils.ts
index 286b6a5..625b090 100644
--- a/services/frontend/src/components/Modal/service/form-utils.ts
+++ b/services/frontend/src/components/Modal/service/form-utils.ts
@@ -1,7 +1,6 @@
 import type { IEditServiceForm, IServiceNodeItem } from "../../../types";
 import * as yup from "yup";
-import lodash from "lodash";
-import { checkArray } from "../../../utils/forms";
+import { checkArray, pruneArray, pruneObject } from "../../../utils/forms";
 
 const initialValues: IEditServiceForm = {
   imageName: "",
@@ -95,10 +94,9 @@ export const getInitialValues = (node?: IServiceNodeItem): IEditServiceForm => {
     labels
   } = serviceConfig;
 
-  const environment0: string[] = checkArray(environment, "environment");
+  const environment0: string[] = checkArray(environment || [], "environment");
   const volumes0: string[] = checkArray(volumes, "volumes");
   const ports0: string[] = checkArray(ports, "ports");
-  const labels0: string[] = checkArray(labels, "labels");
   const [imageName, imageTag] = (image ?? ":").split(":");
 
   return {
@@ -137,13 +135,12 @@ export const getInitialValues = (node?: IServiceNodeItem): IEditServiceForm => {
 
       return { hostPort, containerPort, protocol } as any;
     }),
-    labels: labels0.map((label) => {
-      const [key, value] = label.split("=");
-      return {
-        key,
-        value
-      };
-    })
+    labels: labels
+      ? Object.entries(labels as any).map(([key, value]: any) => ({
+          key,
+          value
+        }))
+      : []
   };
 };
 
@@ -153,51 +150,44 @@ export const getFinalValues = (
 ): IServiceNodeItem => {
   const { environmentVariables, ports, volumes, labels } = values;
 
-  return lodash.mergeWith(
-    lodash.cloneDeep(previous) || {
-      key: "service",
-      type: "SERVICE",
-      inputs: ["op_source"],
-      outputs: [],
-      config: {}
+  return {
+    key: previous?.key ?? "service",
+    type: "SERVICE",
+    position: previous?.position ?? { left: 0, top: 0 },
+    inputs: previous?.inputs ?? ["op_source"],
+    outputs: previous?.outputs ?? [],
+    config: (previous as any)?.config ?? {},
+    canvasConfig: {
+      node_name: values.serviceName
     },
-    {
-      canvasConfig: {
-        node_name: values.serviceName
-      },
-      serviceConfig: {
-        image: `${values.imageName}${
-          values.imageTag ? `:${values.imageTag}` : ""
-        }`,
-        container_name: values.containerName,
-        environment: environmentVariables.map(
+    serviceConfig: {
+      image: `${values.imageName}${
+        values.imageTag ? `:${values.imageTag}` : ""
+      }`,
+      container_name: values.containerName,
+      environment: pruneArray(
+        environmentVariables.map(
           (variable) =>
             `${variable.key}${variable.value ? `=${variable.value}` : ""}`
-        ),
-        volumes: volumes.length
-          ? volumes.map(
-              (volume) =>
-                volume.name +
-                (volume.containerPath ? `:${volume.containerPath}` : "") +
-                (volume.accessMode ? `:${volume.accessMode}` : "")
-            )
-          : [],
-        ports: ports.map(
-          (port) =>
-            port.hostPort +
-            (port.containerPort ? `:${port.containerPort}` : "") +
-            (port.protocol ? `/${port.protocol}` : "")
-        ),
-        labels: labels.map(
-          (label) => `${label.key}${label.value ? `=${label.value}` : ""}`
         )
-      }
-    },
-    (obj, src) => {
-      if (!lodash.isNil(src)) {
-        return src;
-      }
-      return obj;
+      ),
+      volumes: volumes.length
+        ? volumes.map(
+            (volume) =>
+              volume.name +
+              (volume.containerPath ? `:${volume.containerPath}` : "") +
+              (volume.accessMode ? `:${volume.accessMode}` : "")
+          )
+        : [],
+      ports: ports.map(
+        (port) =>
+          port.hostPort +
+          (port.containerPort ? `:${port.containerPort}` : "") +
+          (port.protocol ? `/${port.protocol}` : "")
+      ),
+      labels: pruneObject(
+        Object.fromEntries(labels.map((label) => [label.key, label.value]))
+      )
     }
-  ) as any;
+  } as any;
 };
diff --git a/services/frontend/src/components/Modal/volume/form-utils.ts b/services/frontend/src/components/Modal/volume/form-utils.ts
index 8b986bc..b3da6d9 100644
--- a/services/frontend/src/components/Modal/volume/form-utils.ts
+++ b/services/frontend/src/components/Modal/volume/form-utils.ts
@@ -1,7 +1,6 @@
-import lodash from "lodash";
 import * as yup from "yup";
 import { IEditVolumeForm, IVolumeNodeItem } from "../../../types";
-import { checkArray } from "../../../utils/forms";
+import { pruneObject } from "../../../utils/forms";
 
 export const validationSchema = yup.object({
   entryName: yup
@@ -36,19 +35,16 @@ export const getInitialValues = (node?: IVolumeNodeItem): IEditVolumeForm => {
   const { node_name = "" } = canvasConfig;
   const { name = "", labels } = volumeConfig;
 
-  const labels0: string[] = checkArray(labels, "labels");
-
   return {
     ...initialValues,
     entryName: node_name,
     volumeName: name,
-    labels: labels0.map((label) => {
-      const [key, value] = label.split("=");
-      return {
-        key,
-        value
-      };
-    })
+    labels: labels
+      ? Object.entries(labels as any).map(([key, value]: any) => ({
+          key,
+          value
+        }))
+      : []
   };
 };
 
@@ -58,32 +54,22 @@ export const getFinalValues = (
 ): IVolumeNodeItem => {
   const { labels } = values;
 
-  return lodash.mergeWith(
-    lodash.cloneDeep(previous) || {
-      key: "volume",
-      type: "VOLUME",
-      inputs: [],
-      outputs: [],
-      config: {}
-    },
-    {
-      canvasConfig: {
-        node_name: values.entryName
-      },
-      volumeConfig: {
-        name: values.volumeName,
-        labels: labels.map(
-          (label) => `${label.key}${label.value ? `=${label.value}` : ""}`
-        )
-      }
+  return {
+    key: previous?.key ?? "volume",
+    type: "VOLUME",
+    position: previous?.position ?? { left: 0, top: 0 },
+    inputs: previous?.inputs ?? [],
+    outputs: previous?.outputs ?? [],
+    canvasConfig: {
+      node_name: values.entryName
     },
-    (obj, src) => {
-      if (!lodash.isNil(src)) {
-        return src;
-      }
-      return obj;
+    volumeConfig: {
+      name: values.volumeName,
+      labels: pruneObject(
+        Object.fromEntries(labels.map((label) => [label.key, label.value]))
+      ) as Record<string, string>
     }
-  ) as any;
+  };
 };
 
 export const tabs = [
diff --git a/services/frontend/src/types/index.ts b/services/frontend/src/types/index.ts
index 76db33c..e62eaae 100644
--- a/services/frontend/src/types/index.ts
+++ b/services/frontend/src/types/index.ts
@@ -78,31 +78,31 @@ export interface IVolumeTopLevel {
     device: string;
   };
   external: boolean;
-  labels: string[] | KeyValuePair;
+  labels?: string[] | KeyValuePair;
   name: string;
 }
 
+export interface IPAMConfig {
+  subnet?: string;
+  ip_range?: string;
+  gateway?: string;
+  aux_addresses?: Record<string, string>;
+}
+
+export interface IIPAM {
+  driver?: string;
+  config?: IPAMConfig[];
+  options?: Record<string, string>;
+}
+
 export interface INetworkTopLevel {
   driver: string;
   driver_opts: KeyValPair;
   attachable: boolean;
   enable_ipv6: boolean;
-  ipam: {
-    driver: string;
-    config: {
-      subnet: string;
-      ip_range: string;
-      gateway: string;
-      aux_addresses: {
-        host1: string;
-        host2: string;
-        host3: string;
-      };
-    }[];
-    options: KeyValPair;
-  };
+  ipam?: IIPAM;
   internal: boolean;
-  labels: string[] | KeyValPair;
+  labels?: string[] | KeyValPair;
   external: boolean;
   name: string;
 }
diff --git a/services/frontend/src/utils/forms.ts b/services/frontend/src/utils/forms.ts
index 931a359..9704779 100644
--- a/services/frontend/src/utils/forms.ts
+++ b/services/frontend/src/utils/forms.ts
@@ -1,3 +1,5 @@
+import lodash from "lodash";
+
 export const checkArray = <T>(array: any, name: string): T => {
   if (!Array.isArray(array)) {
     throw new Error(
@@ -6,3 +8,19 @@ export const checkArray = <T>(array: any, name: string): T => {
   }
   return array as unknown as T;
 };
+
+export const pruneArray = <T>(array: (T | undefined)[]): T[] | undefined => {
+  const result = array.filter(Boolean);
+  if (array.length === 0) {
+    return undefined;
+  }
+  return result as T[];
+};
+
+export const pruneObject = <T>(object: T): unknown | undefined => {
+  const result = lodash.pickBy(object ?? {}, (value) => value !== undefined);
+  if (Object.keys(result).length === 0) {
+    return undefined;
+  }
+  return result as unknown;
+};