diff --git a/Cargo.lock b/Cargo.lock
index 4770ca1..20b20a1 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -5766,6 +5766,7 @@ dependencies = [
  "actix-files",
  "actix-session 0.5.0",
  "actix-web",
+ "actix-web-lab",
  "dotenv",
  "env_logger",
  "log",
diff --git a/auth/redis-session/src/main.rs b/auth/redis-session/src/main.rs
index a897da8..07b144d 100644
--- a/auth/redis-session/src/main.rs
+++ b/auth/redis-session/src/main.rs
@@ -13,7 +13,7 @@ use actix_web::{
 };
 use serde::{Deserialize, Serialize};
 
-#[derive(Serialize, Deserialize, Debug, PartialEq)]
+#[derive(Serialize, Deserialize, Debug, PartialEq, Eq)]
 pub struct IndexResponse {
     user_id: Option<String>,
     counter: i32,
diff --git a/basics/basics/src/main.rs b/basics/basics/src/main.rs
index 33a0edd..6f47aae 100644
--- a/basics/basics/src/main.rs
+++ b/basics/basics/src/main.rs
@@ -43,7 +43,9 @@ async fn welcome(req: HttpRequest, session: Session) -> Result<HttpResponse> {
 async fn default_handler(req_method: Method) -> Result<impl Responder> {
     match req_method {
         Method::GET => {
-            let file = NamedFile::open("static/404.html")?.set_status_code(StatusCode::NOT_FOUND);
+            let file = NamedFile::open("static/404.html")?
+                .customize()
+                .with_status(StatusCode::NOT_FOUND);
             Ok(Either::Left(file))
         }
         _ => Ok(Either::Right(HttpResponse::MethodNotAllowed().finish())),
diff --git a/basics/todo/Cargo.toml b/basics/todo/Cargo.toml
index fcb609b..2722635 100644
--- a/basics/todo/Cargo.toml
+++ b/basics/todo/Cargo.toml
@@ -4,9 +4,10 @@ version = "1.0.0"
 edition = "2021"
 
 [dependencies]
-actix-web = "4"
 actix-files = "0.6"
 actix-session = "0.5"
+actix-web = "4"
+actix-web-lab = "0.16"
 
 dotenv = "0.15"
 env_logger = "0.9"
diff --git a/basics/todo/src/api.rs b/basics/todo/src/api.rs
index 173e48a..ae8900d 100644
--- a/basics/todo/src/api.rs
+++ b/basics/todo/src/api.rs
@@ -1,8 +1,9 @@
 use actix_files::NamedFile;
 use actix_session::Session;
 use actix_web::{
-    dev, error, http, middleware::ErrorHandlerResponse, web, Error, HttpResponse, Result,
+    dev, error, middleware::ErrorHandlerResponse, web, Error, HttpResponse, Responder, Result,
 };
+use actix_web_lab::web::Redirect;
 use serde::Deserialize;
 use sqlx::SqlitePool;
 use tera::{Context, Tera};
@@ -24,8 +25,7 @@ pub async fn index(
     let mut context = Context::new();
     context.insert("tasks", &tasks);
 
-    //Session is set during operations on other endpoints
-    //that can redirect to index
+    // Session is set during operations on other endpoints that can redirect to index
     if let Some(flash) = session::get_flash(&session)? {
         context.insert("msg", &(flash.kind, flash.message));
         session::clear_flash(&session);
@@ -38,7 +38,7 @@ pub async fn index(
     Ok(HttpResponse::Ok().body(rendered))
 }
 
-#[derive(Deserialize)]
+#[derive(Debug, Deserialize)]
 pub struct CreateForm {
     description: String,
 }
@@ -47,25 +47,27 @@ pub async fn create(
     params: web::Form<CreateForm>,
     pool: web::Data<SqlitePool>,
     session: Session,
-) -> Result<HttpResponse, Error> {
+) -> Result<impl Responder, Error> {
     if params.description.is_empty() {
         session::set_flash(&session, FlashMessage::error("Description cannot be empty"))?;
-        Ok(redirect_to("/"))
+        Ok(Redirect::to("/"))
     } else {
         db::create_task(params.into_inner().description, &pool)
             .await
             .map_err(error::ErrorInternalServerError)?;
+
         session::set_flash(&session, FlashMessage::success("Task successfully added"))?;
-        Ok(redirect_to("/"))
+
+        Ok(Redirect::to("/"))
     }
 }
 
-#[derive(Deserialize)]
+#[derive(Debug, Deserialize)]
 pub struct UpdateParams {
     id: i32,
 }
 
-#[derive(Deserialize)]
+#[derive(Debug, Deserialize)]
 pub struct UpdateForm {
     _method: String,
 }
@@ -75,65 +77,71 @@ pub async fn update(
     params: web::Path<UpdateParams>,
     form: web::Form<UpdateForm>,
     session: Session,
-) -> Result<HttpResponse, Error> {
-    match form._method.as_ref() {
-        "put" => toggle(db, params).await,
-        "delete" => delete(db, params, session).await,
+) -> Result<impl Responder, Error> {
+    Ok(Redirect::to(match form._method.as_ref() {
+        "put" => toggle(db, params).await?,
+        "delete" => delete(db, params, session).await?,
         unsupported_method => {
             let msg = format!("Unsupported HTTP method: {unsupported_method}");
-            Err(error::ErrorBadRequest(msg))
+            return Err(error::ErrorBadRequest(msg));
         }
-    }
+    }))
 }
 
 async fn toggle(
     pool: web::Data<SqlitePool>,
     params: web::Path<UpdateParams>,
-) -> Result<HttpResponse, Error> {
+) -> Result<&'static str, Error> {
     db::toggle_task(params.id, &pool)
         .await
         .map_err(error::ErrorInternalServerError)?;
-    Ok(redirect_to("/"))
+
+    Ok("/")
 }
 
 async fn delete(
     pool: web::Data<SqlitePool>,
     params: web::Path<UpdateParams>,
     session: Session,
-) -> Result<HttpResponse, Error> {
+) -> Result<&'static str, Error> {
     db::delete_task(params.id, &pool)
         .await
         .map_err(error::ErrorInternalServerError)?;
-    session::set_flash(&session, FlashMessage::success("Task was deleted."))?;
-    Ok(redirect_to("/"))
-}
 
-fn redirect_to(location: &str) -> HttpResponse {
-    HttpResponse::Found()
-        .append_header((http::header::LOCATION, location))
-        .finish()
+    session::set_flash(&session, FlashMessage::success("Task was deleted."))?;
+
+    Ok("/")
 }
 
 pub fn bad_request<B>(res: dev::ServiceResponse<B>) -> Result<ErrorHandlerResponse<B>> {
     let new_resp = NamedFile::open("static/errors/400.html")?
-        .set_status_code(res.status())
-        .into_response(res.request())
+        .customize()
+        .with_status(res.status())
+        .respond_to(res.request())
+        .map_into_boxed_body()
         .map_into_right_body();
+
     Ok(ErrorHandlerResponse::Response(res.into_response(new_resp)))
 }
 
 pub fn not_found<B>(res: dev::ServiceResponse<B>) -> Result<ErrorHandlerResponse<B>> {
     let new_resp = NamedFile::open("static/errors/404.html")?
-        .set_status_code(res.status())
-        .into_response(res.request())
+        .customize()
+        .with_status(res.status())
+        .respond_to(res.request())
+        .map_into_boxed_body()
         .map_into_right_body();
+
     Ok(ErrorHandlerResponse::Response(res.into_response(new_resp)))
 }
 
 pub fn internal_server_error<B>(res: dev::ServiceResponse<B>) -> Result<ErrorHandlerResponse<B>> {
     let new_resp = NamedFile::open("static/errors/500.html")?
-        .set_status_code(res.status())
-        .into_response(res.request())
+        .customize()
+        .with_status(res.status())
+        .respond_to(res.request())
+        .map_into_boxed_body()
         .map_into_right_body();
+
     Ok(ErrorHandlerResponse::Response(res.into_response(new_resp)))
 }
diff --git a/databases/mongodb/src/model.rs b/databases/mongodb/src/model.rs
index 1e39dc3..40018a4 100644
--- a/databases/mongodb/src/model.rs
+++ b/databases/mongodb/src/model.rs
@@ -1,6 +1,6 @@
 use serde::{Deserialize, Serialize};
 
-#[derive(Clone, Debug, PartialEq, Deserialize, Serialize)]
+#[derive(Clone, Debug, PartialEq, Eq, Deserialize, Serialize)]
 pub struct User {
     pub first_name: String,
     pub last_name: String,
diff --git a/json/jsonrpc/src/main.rs b/json/jsonrpc/src/main.rs
index 91388bc..f4ad7ec 100644
--- a/json/jsonrpc/src/main.rs
+++ b/json/jsonrpc/src/main.rs
@@ -62,13 +62,14 @@ async fn rpc_select(
             if params.len() != 1 || !params[0].is_u64() {
                 return Err(convention::ErrorData::std(-32602));
             }
-            match app_state
+
+            let fut = app_state
                 .network
                 .read()
                 .unwrap()
-                .wait(params[0].as_u64().unwrap())
-                .await
-            {
+                .wait(params[0].as_u64().unwrap());
+
+            match fut.await {
                 Ok(ok) => Ok(Value::from(ok)),
                 Err(e) => Err(convention::ErrorData::new(500, &format!("{e:?}")[..])),
             }
diff --git a/protobuf/src/main.rs b/protobuf/src/main.rs
index 3fa291a..10b56c0 100644
--- a/protobuf/src/main.rs
+++ b/protobuf/src/main.rs
@@ -2,7 +2,7 @@ use actix_protobuf::{ProtoBuf, ProtoBufResponseBuilder as _};
 use actix_web::{middleware, web, App, HttpResponse, HttpServer, Result};
 use prost_derive::Message;
 
-#[derive(Clone, PartialEq, Message)]
+#[derive(Clone, PartialEq, Eq, Message)]
 pub struct MyObj {
     #[prost(int32, tag = "1")]
     pub number: i32,
diff --git a/websockets/chat-tcp/src/server.rs b/websockets/chat-tcp/src/server.rs
index a23b57b..2ccd628 100644
--- a/websockets/chat-tcp/src/server.rs
+++ b/websockets/chat-tcp/src/server.rs
@@ -82,7 +82,7 @@ impl ChatServer {
             for id in sessions {
                 if *id != skip_id {
                     if let Some(addr) = self.sessions.get(id) {
-                        let _ = addr.do_send(session::Message(message.to_owned()));
+                        addr.do_send(session::Message(message.to_owned()));
                     }
                 }
             }
diff --git a/websockets/chat/src/server.rs b/websockets/chat/src/server.rs
index 6861cb1..87be846 100644
--- a/websockets/chat/src/server.rs
+++ b/websockets/chat/src/server.rs
@@ -97,7 +97,7 @@ impl ChatServer {
             for id in sessions {
                 if *id != skip_id {
                     if let Some(addr) = self.sessions.get(id) {
-                        let _ = addr.do_send(Message(message.to_owned()));
+                        addr.do_send(Message(message.to_owned()));
                     }
                 }
             }