diff --git a/.github/workflows/testProject.yml b/.github/workflows/testProject.yml
index f5f2a2f..743599f 100644
--- a/.github/workflows/testProject.yml
+++ b/.github/workflows/testProject.yml
@@ -47,7 +47,7 @@ jobs:
       run: |
         tsc --build --clean
         tsc --build
-        sudo -E mocha ./
+        sudo -E mocha ./src
 
     - name: Upload generate interface
       uses: actions/upload-artifact@v3
diff --git a/addons/tools/wginterface-dummy.cpp b/addons/tools/wginterface-dummy.cpp
index c72ac46..6a04a4c 100644
--- a/addons/tools/wginterface-dummy.cpp
+++ b/addons/tools/wginterface-dummy.cpp
@@ -12,11 +12,6 @@ unsigned long maxName() {
 }
 
 void listDevices::Execute() {}
-
-void setConfig::Execute() {
-  SetError("Use userpace implementation, kernel only on linux!");
-}
-
-void getConfig::Execute() {
-  SetError("Use userpace implementation, kernel only on linux!");
-}
\ No newline at end of file
+void deleteInterface::Execute() {}
+void setConfig::Execute() {}
+void getConfig::Execute() {}
\ No newline at end of file
diff --git a/addons/tools/wginterface-linux.cpp b/addons/tools/wginterface-linux.cpp
index 0dc14e0..4ece61d 100644
--- a/addons/tools/wginterface-linux.cpp
+++ b/addons/tools/wginterface-linux.cpp
@@ -28,34 +28,15 @@ extern "C" {
   #include "linux/wireguard.h"
 }
 
-#ifndef SETCONFIG
-#define SETCONFIG
-#endif
-#ifndef GETCONFIG
-#define GETCONFIG
-#endif
-#ifndef LISTDEV
-#define LISTDEV
-#endif
+#define SETCONFIG 1
+#define GETCONFIG 1
+#define LISTDEV 1
+#define DELIFACE 1
 
 unsigned long maxName() {
   return IFNAMSIZ;
 }
 
-Napi::Value listDevicesSync(const Napi::CallbackInfo& info) {
-  const Napi::Env env = info.Env();
-  size_t len;
-  char *device_name, *devicesList = wg_list_device_names();
-  if (!devicesList) {
-    Napi::Error::New(env, "Unable to get device names").ThrowAsJavaScriptException();
-    return env.Undefined();
-  }
-  const Napi::Array devicesArray = Napi::Array::New(env);
-  for ((device_name) = (devicesList), (len) = 0; ((len) = strlen(device_name)); (device_name) += (len) + 1) devicesArray.Set(devicesArray.Length(), Napi::String::New(env, device_name));
-  free(devicesList);
-  return devicesArray;
-}
-
 void listDevices::Execute() {
   char *device_name, *devicesList = wg_list_device_names();
   if (!devicesList) SetError("Unable to get device names");
@@ -85,6 +66,26 @@ int setInterface(std::string wgName) {
   return len;
 }
 
+void deleteInterface::Execute() {
+  size_t len = 0;
+  char *device_name, *devicesList = wg_list_device_names();
+  if (!!devicesList) {
+    for ((device_name) = (devicesList), (len) = 0; ((len) = strlen(device_name)); (device_name) += (len) + 1) {
+      if (device_name == wgName.c_str()) {
+        if ((len = wg_add_device(wgName.c_str())) < 0) {
+          std::string err = "Error code: ";
+          err = err.append(std::to_string(len));
+          if (len == -ENOMEM) err = "Out of memory";
+          else if (len == -errno) err = ((std::string)"Cannot add device, code: ").append(std::to_string(len));
+          SetError(err);
+        }
+        break;
+      }
+    }
+    free(devicesList);
+  }
+}
+
 void setConfig::Execute() {
   int res = setInterface(wgName);
   if (res < 0) {
diff --git a/addons/tools/wginterface.cpp b/addons/tools/wginterface.cpp
index e5f5823..087a0ee 100644
--- a/addons/tools/wginterface.cpp
+++ b/addons/tools/wginterface.cpp
@@ -30,6 +30,30 @@ Napi::Value setConfigAsync(const Napi::CallbackInfo &info) {
   return env.Undefined();
 }
 
+Napi::Value deleteInterfaceAsync(const Napi::CallbackInfo &info) {
+  const Napi::Env env = info.Env();
+  const auto wgName = info[0];
+  const auto callback = info[1];
+  if (!(wgName.IsString())) {
+    Napi::Error::New(env, "Require wireguard interface name").ThrowAsJavaScriptException();
+    return env.Undefined();
+  } else if (wgName.ToString().Utf8Value().length() >= maxName()) {
+    Napi::Error::New(env, "interface name is so long").ThrowAsJavaScriptException();
+    return env.Undefined();
+  } else if (!(callback.IsFunction())) {
+    Napi::Error::New(env, "Require callback").ThrowAsJavaScriptException();
+    return env.Undefined();
+  }
+
+  try {
+    const auto delInterWorker = new deleteInterface(callback.As<Napi::Function>(), wgName.ToString().Utf8Value());
+    delInterWorker->Queue();
+  } catch (const Napi::Error &err) {
+    err.ThrowAsJavaScriptException();
+  }
+  return env.Undefined();
+}
+
 Napi::Value getConfigAsync(const Napi::CallbackInfo &info) {
   const Napi::Env env = info.Env();
   const auto wgName = info[0];
@@ -78,13 +102,19 @@ Napi::Object Init(Napi::Env env, Napi::Object exports) {
   // Constants
   exports.Set("constants", constants);
 
-  // async function
+  // Function's
   #ifdef SETCONFIG
   exports.Set("setConfigAsync", Napi::Function::New(env, setConfigAsync));
   #endif
+
+  #ifdef DELIFACE
+  exports.Set("deleteInterfaceAsync", Napi::Function::New(env, deleteInterfaceAsync));
+  #endif
+
   #ifdef GETCONFIG
   exports.Set("getConfigAsync", Napi::Function::New(env, getConfigAsync));
   #endif
+
   #ifdef LISTDEV
   exports.Set("listDevicesAsync", Napi::Function::New(env, listDevicesAsync));
   #endif
diff --git a/addons/tools/wginterface.hh b/addons/tools/wginterface.hh
index 96924ea..f486d94 100644
--- a/addons/tools/wginterface.hh
+++ b/addons/tools/wginterface.hh
@@ -6,12 +6,24 @@
 
 unsigned long maxName();
 
-/*
-Esta função consegela o loop event
+class deleteInterface : public Napi::AsyncWorker {
+  private:
+    std::string wgName;
+  public:
+  deleteInterface(const Napi::Function &callback, std::string name): AsyncWorker(callback), wgName(name) {}
+  ~deleteInterface() {}
+  void OnOK() override {
+    Napi::HandleScope scope(Env());
+    Callback().Call({ Env().Undefined() });
+  };
+  void OnError(const Napi::Error &e) override {
+    Napi::HandleScope scope(Env());
+    Callback().Call({ e.Value() });
+  }
 
-Pegar todas as interfaces do Wireguard e retorna em forma de String sendo tratado pelo Node.js quando retornado.
-*/
-Napi::Value listDevicesSync(const Napi::CallbackInfo& info);
+  // Set platform Execute script
+  void Execute() override;
+};
 
 class listDevices : public Napi::AsyncWorker {
   private:
diff --git a/binding.gyp b/binding.gyp
index dacb9c0..c5c9d7c 100644
--- a/binding.gyp
+++ b/binding.gyp
@@ -62,7 +62,8 @@
           "defines": [
             "LISTDEV",
             "GETCONFIG",
-            "SETCONFIG"
+            "SETCONFIG",
+            "DELIFACE"
           ],
           "sources": [
             "addons/tools/linux/wireguard.c",
diff --git a/examples/addPeer/index.mjs b/examples/addPeer/index.mjs
index 446bff6..671c821 100644
--- a/examples/addPeer/index.mjs
+++ b/examples/addPeer/index.mjs
@@ -1,4 +1,4 @@
-import { listDevices, parseWgDevice, addDevice, utils } from "wireguard-tools.js";
+import { listDevices, parseWgDevice, addDevice, wgConfig, utils } from "wireguard-tools.js";
 const deviceName = (await listDevices()).at(-1);
 if (!deviceName) {
   console.info("Create wireguard interface");
@@ -6,14 +6,12 @@ if (!deviceName) {
 }
 
 // Get current config
-const currentConfig = await parseWgDevice(deviceName);
+const currentConfig = new wgConfig(await parseWgDevice(deviceName));
 
 // Create Peer
-const peerKey = await utils.keygenAsync(true);
-currentConfig.peers[peerKey.public] = { presharedKey: peerKey.preshared, allowedIPs: [ utils.ipManipulation.randomIp("10.22.66.1/24", Object.keys(currentConfig.peers).map(k => currentConfig.peers[k].allowedIPs).flat(2).filter(Boolean)) ] };
-currentConfig.peers[peerKey.public].allowedIPs.push(utils.ipManipulation.toV6(currentConfig.peers[peerKey.public].allowedIPs.at(0)));
-console.log("Add %O peer", peerKey.public);
+const peer = await currentConfig.newPeer(true);
+console.log("Add %O peer", peer.publicKey);
 
 // Set to interface
 await addDevice(deviceName, currentConfig);
-console.dir(currentConfig, { colors: true, depth: null });
\ No newline at end of file
+console.dir(currentConfig, { depth: null });
\ No newline at end of file
diff --git a/package.json b/package.json
index 12be895..31d677c 100644
--- a/package.json
+++ b/package.json
@@ -34,7 +34,7 @@
   },
   "scripts": {
     "install": "node libs/build.mjs",
-    "test": "mocha ./",
+    "test": "mocha ./src",
     "dev": "tsc --build --clean && tsc --build && node libs/build.mjs build",
     "prebuildify": "node libs/build.mjs build --auto",
     "prepack": "tsc --build --clean && tsc --build && npm run prebuildify",
diff --git a/src/wginterface.test.ts b/src/wginterface.test.ts
index e53b526..d9a7572 100644
--- a/src/wginterface.test.ts
+++ b/src/wginterface.test.ts
@@ -48,5 +48,6 @@ if (process.platform !== "win32" && (userInfo()).gid === 0) {
     });
 
     it("After list", async () => await Bridge.listDevices());
+    it("Delete", async () => await Bridge.deleteInterface(interfaceName));
   });
 }
diff --git a/src/wginterface.ts b/src/wginterface.ts
index 4ac86c7..8853927 100644
--- a/src/wginterface.ts
+++ b/src/wginterface.ts
@@ -81,7 +81,7 @@ export class wgConfig extends Map<string, peerConfig> {
       allowedIPs: [IPv4, IPv6],
       presharedKey: withPreshared ? peerKey.preshared : undefined
     });
-    return this.get(peerKey.public);
+    return Object.assign({}, { publicKey: peerKey.public }, this.get(peerKey.public));
   }
 
   toJSON(): wireguardInterface {
@@ -178,6 +178,16 @@ export async function getConfig(deviceName: string): Promise<wireguardInterface>
   return config.toJSON();
 }
 
+/**
+ * Delete wg interface if possible
+ * @param deviceName - Wireguard interface name.
+ * @returns
+ */
+export async function deleteInterface(deviceName: string): Promise<void> {
+  if (typeof wg_binding.deleteInterfaceAsync === "function") return promisify(wg_binding.deleteInterfaceAsync)(deviceName);
+  return fs.rm(path.join(defaultPath, deviceName).concat(".sock"), { force: true });
+}
+
 /**
  * Set Wireguard interface config.
  * @param deviceName - Wireguard interface name.