diff --git a/.github/workflows/merge-ci.yml b/.github/workflows/merge-ci.yml
index 3def846..802ebf0 100644
--- a/.github/workflows/merge-ci.yml
+++ b/.github/workflows/merge-ci.yml
@@ -32,25 +32,34 @@ jobs:
         uses: actions-rs/cargo@v1
         with:
           command: build
-          args: --release --all-features
+          args: --verbose --release --all-features
 
       - name: Run tests
         uses: actions-rs/cargo@v1
         with:
           command: test
-          args: --all-features
+          args: --verbose --all-features
 
       - name: Check formatting
-        uses: actions-rs/cargo@v1
-        with:
-          command: fmt
-          args: --all -- --check
+        run: |
+          cargo fmt --all -- --check
+          if [ $? -ne 0 ]; then
+            echo "Formatting issues found. Applying automatic fixes..."
+            cargo fmt --all
+            git config --global user.name 'Lzyct-Bot'
+            git config --global user.email 'lazycatlabs@users.noreply.github.com'
+            git add .
+            git commit -m "style: apply automatic formatting"
+            git push
+            echo "Formatting issues have been automatically fixed. Please review the changes."
+            exit 1
+          fi
 
       - name: Run clippy
         uses: actions-rs/cargo@v1
         with:
           command: clippy
-          args: -- -D warnings
+          args: -- -W warnings
 
       - name: Get branch name
         id: branch-name
@@ -72,6 +81,7 @@ jobs:
           git push
 
       - name: Delete branch if merged
+        if: github.event.pull_request.merged == true
         uses: actions/github-script@v5
         with:
           script: |
diff --git a/src/core/middlewares/general.rs b/src/core/middlewares/general.rs
index 8a10b09..431d366 100644
--- a/src/core/middlewares/general.rs
+++ b/src/core/middlewares/general.rs
@@ -25,10 +25,7 @@ impl FromRequest for GeneralMiddleware {
     // act as auth middleware
     fn from_request(request: &HttpRequest, _: &mut Payload) -> Self::Future {
         // clone the request headers to avoids lifetime issues
-        let auth_header = request
-            .headers()
-            .get(AUTHORIZATION)
-            .cloned();
+        let auth_header = request.headers().get(AUTHORIZATION).cloned();
 
         Box::pin(async move {
             let auth_header = auth_header.ok_or_else(|| APIError::UnauthorizedMessage {
@@ -41,12 +38,11 @@ impl FromRequest for GeneralMiddleware {
                 });
             }
 
-            let auth_str =
-                auth_header
-                    .to_str()
-                    .map_err(|_| APIError::UnauthorizedMessage {
-                        message: "Invalid authorization headers".to_string(),
-                    })?;
+            let auth_str = auth_header
+                .to_str()
+                .map_err(|_| APIError::UnauthorizedMessage {
+                    message: "Invalid authorization headers".to_string(),
+                })?;
 
             let token = token_extractor(auth_str);
             let token_data = decode_token(&token).map_err(|_| APIError::Unauthorized)?;
diff --git a/src/features/auth/data/repository/auth.rs b/src/features/auth/data/repository/auth.rs
index 9232b79..d236ab7 100644
--- a/src/features/auth/data/repository/auth.rs
+++ b/src/features/auth/data/repository/auth.rs
@@ -1,3 +1,5 @@
+use std::borrow::Borrow;
+
 use bcrypt::{verify, DEFAULT_COST};
 use chrono::Utc;
 use diesel::prelude::*;
@@ -45,10 +47,10 @@ impl IAuthRepository for AuthRepository {
         let login_history_params = LoginHistoryParams {
             user_id: user,
             ip_addr: login_params.ip_addr.unwrap(),
-            os_info: login_params.os_info,
-            device_info: login_params.device_info,
+            os_info: login_params.os_info.unwrap(),
+            device_info: login_params.device_info.unwrap(),
             login_timestamp: now,
-            fcm_token: login_params.fcm_token,
+            fcm_token: login_params.fcm_token.unwrap(),
         };
 
         diesel::insert_into(login_history::table)
@@ -80,11 +82,15 @@ impl IAuthRepository for AuthRepository {
     }
 
     fn login(&self, params: LoginParams) -> AppResult<AuthEntity> {
+        let param = params.clone();
+        let email_param = param.email.as_deref().unwrap_or("");
+        let password_param = param.password.as_deref().unwrap_or("");
+
         users::table
-            .filter(email.eq(&params.email))
+            .filter(email.eq(&email_param))
             .get_result::<User>(&mut self.source.get().unwrap())
             .map(|user| {
-                (!user.password.is_empty() && verify(&params.password, &user.password).unwrap())
+                (!user.password.is_empty() && verify(&password_param, &user.password).unwrap())
                     .then(|| {
                         self.add_user_session(user.id, params)
                             .map(|login_session| {
@@ -122,10 +128,13 @@ impl IAuthRepository for AuthRepository {
             .filter(user_id.eq(user))
             .get_result::<User>(&mut self.source.get().unwrap())
             .map(|user| {
-                if !params.old_password.is_empty()
-                    && verify(&params.old_password, &user.password).unwrap()
+                let old_password_param = &params.old_password.unwrap_or("".to_string());
+                let new_password_param = &params.new_password.unwrap_or("".to_string());
+
+                if !&old_password_param.is_empty()
+                    && verify(&old_password_param, &user.password).unwrap()
                 {
-                    let new_password = bcrypt::hash(&params.new_password, DEFAULT_COST).unwrap();
+                    let new_password = bcrypt::hash(&new_password_param, DEFAULT_COST).unwrap();
                     diesel::update(users::table)
                         .filter(user_id.eq(&user.id))
                         .set(password.eq(&new_password))
diff --git a/src/features/auth/domain/usecase/dto.rs b/src/features/auth/domain/usecase/dto.rs
index 2ed16af..0a27428 100644
--- a/src/features/auth/domain/usecase/dto.rs
+++ b/src/features/auth/domain/usecase/dto.rs
@@ -17,24 +17,47 @@ pub struct LoginHistoryParams {
 }
 
 camel_case_struct!(LoginParams {
-  #[validate(email(message = "Invalid email"))]
-   email: String,
-  #[validate(length(min = 3, max = 20))]
-   password: String,
-  #[validate(length(min = 0, message = "Can't be empty"))]
+  #[validate(
+    required(message = "field is required"),
+    email(message = "Invalid email"),
+  )]
+   email: Option<String>,
+  #[validate(
+    required(message = "field is required"),
+    length(min = 3, max = 20),
+  )]
+   password: Option<String>,
+  #[validate(
+    length(min = 1, message = "Can't be empty"),
+  )]
    ip_addr: Option<String>,
-  #[validate(length(min = 0, message = "Can't be empty"))]
-   device_info: String,
-  #[validate(length(min = 0, message = "Can't be empty"))]
-   os_info: String,
-  #[validate(length(min = 0, message = "Can't be empty"))]
-   fcm_token: String
+  #[validate(
+    required(message = "field is required"),
+    length(min = 1, message = "Can't be empty"),
+  )]
+   device_info: Option<String>,
+  #[validate(
+    required(message = "field is required"),
+    length(min = 1, message = "Can't be empty"),
+  )]
+   os_info: Option<String>,
+  #[validate(
+    required(message = "field is required"),
+    length(min = 1, message = "Can't be empty"),
+  )]
+   fcm_token: Option<String>
 });
 
 camel_case_struct!(GeneralTokenParams {
-  #[validate(length(min = 0, message = "Can't be empty"))]
+  #[validate(
+    required(message = "field is required"),
+    length(min = 1, message = "Can't be empty"),
+  )]
    client_id: Option<String>,
-  #[validate(length(min = 0, message = "Can't be empty"))]
+  #[validate(
+    required(message = "field is required"),
+    length(min = 1, message = "Can't be empty"),
+  )]
    client_secret: Option<String>
 });
 
@@ -47,16 +70,21 @@ impl GeneralTokenParams {
 }
 
 camel_case_struct!(UpdatePasswordParams {
-    #[validate(length(min = 1, message = "Can't be empty"))]
-    old_password: String,
     #[validate(
-        length(min = 6, message = "Must be at least 6 characters"),
-        must_match(other = "confirm_password", message = "Password not match")
+      required(message = "field is required"),
+      length(min = 1, message = "Can't be empty"),
     )]
-    new_password: String,
+    old_password: Option<String>,
     #[validate(
-        length(min = 6, message = "Must be at least 6 characters"),
-        must_match(other = "new_password", message = "Password not match")
+      required(message = "field is required"),
+      length(min = 6, message = "Must be at least 6 characters"),
+      must_match(other = "confirm_password", message = "Password not match")
     )]
-    confirm_password: String
+    new_password: Option<String>,
+    #[validate(
+      required(message = "field is required"),
+      length(min = 6, message = "Must be at least 6 characters"),
+      must_match(other = "new_password", message = "Password not match")
+    )]
+    confirm_password: Option<String>
 });
diff --git a/src/features/general/domain/mod.rs b/src/features/general/domain/mod.rs
index ed46e91..581feeb 100644
--- a/src/features/general/domain/mod.rs
+++ b/src/features/general/domain/mod.rs
@@ -1 +1 @@
-pub mod usecase;
\ No newline at end of file
+pub mod usecase;
diff --git a/src/features/general/domain/usecase/dto.rs b/src/features/general/domain/usecase/dto.rs
index 147e33c..1d4626b 100644
--- a/src/features/general/domain/usecase/dto.rs
+++ b/src/features/general/domain/usecase/dto.rs
@@ -1,12 +1,21 @@
 use crate::camel_case_struct;
 
 camel_case_struct!(SendEmailParams {
-  #[validate(length(min = 0, message = "Can't be empty"))]
-   email: String,
-  #[validate(length(min = 0, message = "Can't be empty"))]
-  name: String,
-  #[validate(length(min = 0, message = "Can't be empty"))]
-  subject: String,
+  #[validate(
+    required(message = "field is required"),
+    length(min = 1, message = "Can't be empty"),
+  )]
+   email: Option<String>,
+  #[validate(
+    required(message = "field is required"),
+    length(min = 1, message = "Can't be empty"),
+  )]
+  name: Option<String>,
+  #[validate(
+    required(message = "field is required"),
+    length(min = 1, message = "Can't be empty"),
+  )]
+  subject: Option<String>,
   text_content: Option<String>,
   html_content: Option<String>
 });
diff --git a/src/features/general/domain/usecase/mod.rs b/src/features/general/domain/usecase/mod.rs
index 6c29114..a07dce5 100644
--- a/src/features/general/domain/usecase/mod.rs
+++ b/src/features/general/domain/usecase/mod.rs
@@ -1 +1 @@
-pub mod dto;
\ No newline at end of file
+pub mod dto;
diff --git a/src/features/general/general_controller.rs b/src/features/general/general_controller.rs
index 22d7e81..70065ed 100644
--- a/src/features/general/general_controller.rs
+++ b/src/features/general/general_controller.rs
@@ -2,15 +2,26 @@ use actix_web::{
     web::{self, Json},
     HttpResponse,
 };
+use validator::Validate;
 
-use crate::utils::mail_sender::send_email;
-
-use crate::core::{middlewares::state::AppState, response::ResponseBody, types::AppResult};
-use super::domain::usecase::dto::SendEmailParams;
+use crate::{
+    core::{error::APIError, middlewares::general::GeneralMiddleware},
+    features::general::domain::usecase::dto::SendEmailParams,
+};
+use crate::{
+    core::{middlewares::state::AppState, response::ResponseBody, types::AppResult},
+    utils::mail_sender::send_email,
+};
 
 pub async fn test_email(
-    _: web::Data<AppState>,
+    _: GeneralMiddleware,
+    __: web::Data<AppState>,
     params: Json<SendEmailParams>,
 ) -> AppResult<HttpResponse> {
-    send_email(params.0).await.map(|_| ResponseBody::<()>::success(None).into())
+    params.validate().map_err(|e| APIError::BadRequest {
+        message: e.to_string(),
+    })?;
+    send_email(params.0)
+        .await
+        .map(|_| ResponseBody::<()>::success(None).into())
 }
diff --git a/src/features/general/mod.rs b/src/features/general/mod.rs
index e012b7f..3e27b69 100644
--- a/src/features/general/mod.rs
+++ b/src/features/general/mod.rs
@@ -1,2 +1,2 @@
-pub mod general_controller;
-pub mod domain;
\ No newline at end of file
+pub mod domain;
+pub mod general_controller;
\ No newline at end of file
diff --git a/src/features/mod.rs b/src/features/mod.rs
index 87cfef9..85b89df 100644
--- a/src/features/mod.rs
+++ b/src/features/mod.rs
@@ -1,3 +1,3 @@
 pub mod auth;
+pub mod general;
 pub mod user;
-pub mod general;
\ No newline at end of file
diff --git a/src/features/user/domain/usecase/dto.rs b/src/features/user/domain/usecase/dto.rs
index 4092221..ce250af 100644
--- a/src/features/user/domain/usecase/dto.rs
+++ b/src/features/user/domain/usecase/dto.rs
@@ -6,25 +6,30 @@ use uuid::Uuid;
 use crate::{camel_case_struct, features::user::data::models::user::User, schema::users};
 
 camel_case_struct!(RegisterParams {
-    #[validate(email(message = "Invalid email"))]
-    email: String,
-    #[validate(length(min = 0, message = "Can't be empty"))]
-    name: String,
-    #[validate(length(
-        min = 3,
-        max = 20,
-        message = "Password must be between 3 and 20 characters"
-    ))]
-    password: String
+    #[validate(
+      required(message = "field is required"),
+      email(message = "Invalid email"),
+    )]
+    email: Option<String>,
+    #[validate(
+      required(message = "field is required"),
+      length(min = 1, message = "Can't be empty"),
+    )]
+    name: Option<String>,
+    #[validate(
+      required(message = "field is required"),
+      length(min = 3,max = 20,message = "Password must be between 3 and 20 characters"),
+    )]
+    password: Option<String>
 });
 
 impl From<RegisterParams> for User {
     fn from(params: RegisterParams) -> Self {
         User {
             id: Uuid::new_v4(),
-            email: params.email,
-            name: params.name,
-            password: params.password,
+            email: params.email.unwrap(),
+            name: params.name.unwrap(),
+            password: params.password.unwrap(),
             role: String::from("user"),
             created_at: Utc::now().naive_utc(),
             updated_at: Utc::now().naive_utc(),
diff --git a/src/features/user/user_controller.rs b/src/features/user/user_controller.rs
index cd68a8c..f599867 100644
--- a/src/features/user/user_controller.rs
+++ b/src/features/user/user_controller.rs
@@ -1,7 +1,6 @@
 use actix_web::web::Json;
 use actix_web::{web, HttpResponse};
 
-use crate::core::error::APIError;
 use crate::core::middlewares::general::GeneralMiddleware;
 use crate::{
     core::{
diff --git a/src/utils/macros.rs b/src/utils/macros.rs
index 59c9eaa..1dcdb1b 100644
--- a/src/utils/macros.rs
+++ b/src/utils/macros.rs
@@ -1,7 +1,7 @@
 #[macro_export]
 macro_rules! camel_case_struct {
     ($name:ident { $( $field:ident: $type:ty ),* }) => {
-        #[derive(serde::Serialize, serde::Deserialize, Debug)]
+        #[derive(serde::Serialize, serde::Deserialize, Debug,Clone)]
         #[serde(rename_all = "camelCase")]
         pub struct $name {
             $( pub $field: $type ),*
@@ -16,7 +16,7 @@ macro_rules! camel_case_struct {
               ),+ $(,)?
           }
       ) => {
-          #[derive(serde::Serialize, serde::Deserialize, validator::Validate, Debug)]
+          #[derive(serde::Serialize, serde::Deserialize, validator::Validate, Debug,Clone)]
           #[serde(rename_all = "camelCase")]
           pub struct $name {
               $(
diff --git a/src/utils/mail_sender.rs b/src/utils/mail_sender.rs
index af798fe..472c3e8 100644
--- a/src/utils/mail_sender.rs
+++ b/src/utils/mail_sender.rs
@@ -1,12 +1,11 @@
-use actix_web::HttpResponse;
 use dotenv_codegen::dotenv;
 use reqwest::Client;
 use serde_json::json;
 
-use crate::core::{error::APIError, response::ResponseBody, types::AppResult};
+use crate::core::{error::APIError, types::AppResult};
 use crate::features::general::domain::usecase::dto::SendEmailParams;
 
-pub async fn send_email(params: SendEmailParams) -> AppResult<HttpResponse> {
+pub async fn send_email(params: SendEmailParams) -> AppResult<String> {
     let client = Client::new();
 
     let mut message = json!({
@@ -46,14 +45,15 @@ pub async fn send_email(params: SendEmailParams) -> AppResult<HttpResponse> {
         .await
         .map_err(|_| APIError::InternalError)?;
 
-    println!("Email sent to {}", &params.email);
-    println!("Body: {:?}", body);
-    println!("Response: {:?}", result);
+    let email = &params.email.unwrap_or("Unknown".to_string());
+    println!("Email sent to {}", &email);
+    println!("Body: {:#?}", body);
+    println!("Response: {:#?}", result);
     if result.status().is_client_error() {
         return Err(APIError::BadRequest {
-            message: format!("Failed to send email to {}", &params.email).to_string(),
+            message: format!("Failed to send email to {}", &email).to_string(),
         });
     }
 
-    Ok(ResponseBody::<()>::success(None).into())
-}
\ No newline at end of file
+    Ok("Email sent successfully".to_string())
+}