diff --git a/actix-http/Cargo.toml b/actix-http/Cargo.toml
index 87669aeb1..6216af3d1 100644
--- a/actix-http/Cargo.toml
+++ b/actix-http/Cargo.toml
@@ -84,6 +84,7 @@ zstd = { version = "0.9", optional = true }
 actix-server = "2.0.0-rc.1"
 actix-http-test = { version = "3.0.0-beta.7", features = ["openssl"] }
 actix-tls = { version = "3.0.0-rc.1", features = ["openssl"] }
+actix-web = "4.0.0-beta.13"
 async-stream = "0.3"
 criterion = { version = "0.3", features = ["html_reports"] }
 env_logger = "0.9"
@@ -95,7 +96,7 @@ serde_json = "1.0"
 static_assertions = "1"
 tls-openssl = { package = "openssl", version = "0.10.9" }
 tls-rustls = { package = "rustls", version = "0.20.0" }
-tokio = { version = "1.2", features = ["net", "rt"] }
+tokio = { version = "1.2", features = ["net", "rt", "macros"] }
 
 [[example]]
 name = "ws"
diff --git a/actix-http/examples/actix-web.rs b/actix-http/examples/actix-web.rs
new file mode 100644
index 000000000..f8226507f
--- /dev/null
+++ b/actix-http/examples/actix-web.rs
@@ -0,0 +1,26 @@
+use actix_http::HttpService;
+use actix_server::Server;
+use actix_service::map_config;
+use actix_web::{dev::AppConfig, get, App};
+
+#[get("/")]
+async fn index() -> &'static str {
+    "Hello, world. From Actix Web!"
+}
+
+#[tokio::main(flavor = "current_thread")]
+async fn main() -> std::io::Result<()> {
+    Server::build()
+        .bind("hello-world", "127.0.0.1:8080", || {
+            // construct actix-web app
+            let app = App::new().service(index);
+
+            HttpService::build()
+                // pass the app to service builder
+                // map_config is used to map App's configuration to ServiceBuilder
+                .finish(map_config(app, |_| AppConfig::default()))
+                .tcp()
+        })?
+        .run()
+        .await
+}
diff --git a/src/app.rs b/src/app.rs
index a27dd54a6..ab2081c18 100644
--- a/src/app.rs
+++ b/src/app.rs
@@ -1,9 +1,6 @@
-use std::{cell::RefCell, fmt, future::Future, marker::PhantomData, rc::Rc};
+use std::{cell::RefCell, fmt, future::Future, rc::Rc};
 
-use actix_http::{
-    body::{BoxBody, MessageBody},
-    Extensions, Request,
-};
+use actix_http::{body::MessageBody, Extensions, Request};
 use actix_service::{
     apply, apply_fn_factory, boxed, IntoServiceFactory, ServiceFactory, ServiceFactoryExt,
     Transform,
@@ -26,7 +23,7 @@ use crate::{
 
 /// Application builder - structure that follows the builder pattern
 /// for building application instances.
-pub struct App<T, B> {
+pub struct App<T> {
     endpoint: T,
     services: Vec<Box<dyn AppServiceFactory>>,
     default: Option<Rc<BoxedHttpServiceFactory>>,
@@ -34,10 +31,9 @@ pub struct App<T, B> {
     data_factories: Vec<FnDataFactory>,
     external: Vec<ResourceDef>,
     extensions: Extensions,
-    _phantom: PhantomData<B>,
 }
 
-impl App<AppEntry, BoxBody> {
+impl App<AppEntry> {
     /// Create application builder. Application can be configured with a builder-like pattern.
     #[allow(clippy::new_without_default)]
     pub fn new() -> Self {
@@ -51,22 +47,11 @@ impl App<AppEntry, BoxBody> {
             factory_ref,
             external: Vec::new(),
             extensions: Extensions::new(),
-            _phantom: PhantomData,
         }
     }
 }
 
-impl<T, B> App<T, B>
-where
-    B: MessageBody,
-    T: ServiceFactory<
-        ServiceRequest,
-        Config = (),
-        Response = ServiceResponse<B>,
-        Error = Error,
-        InitError = (),
-    >,
-{
+impl<T> App<T> {
     /// Set application (root level) data.
     ///
     /// Application data stored with `App::app_data()` method is available through the
@@ -365,7 +350,7 @@ where
     ///         .route("/index.html", web::get().to(index));
     /// }
     /// ```
-    pub fn wrap<M, B1>(
+    pub fn wrap<M, B, B1>(
         self,
         mw: M,
     ) -> App<
@@ -376,9 +361,16 @@ where
             Error = Error,
             InitError = (),
         >,
-        B1,
     >
     where
+        T: ServiceFactory<
+            ServiceRequest,
+            Response = ServiceResponse<B>,
+            Error = Error,
+            Config = (),
+            InitError = (),
+        >,
+        B: MessageBody,
         M: Transform<
             T::Service,
             ServiceRequest,
@@ -396,7 +388,6 @@ where
             factory_ref: self.factory_ref,
             external: self.external,
             extensions: self.extensions,
-            _phantom: PhantomData,
         }
     }
 
@@ -431,7 +422,7 @@ where
     ///         .route("/index.html", web::get().to(index));
     /// }
     /// ```
-    pub fn wrap_fn<B1, F, R>(
+    pub fn wrap_fn<F, R, B, B1>(
         self,
         mw: F,
     ) -> App<
@@ -442,12 +433,19 @@ where
             Error = Error,
             InitError = (),
         >,
-        B1,
     >
     where
-        B1: MessageBody,
+        T: ServiceFactory<
+            ServiceRequest,
+            Response = ServiceResponse<B>,
+            Error = Error,
+            Config = (),
+            InitError = (),
+        >,
+        B: MessageBody,
         F: Fn(ServiceRequest, &T::Service) -> R + Clone,
         R: Future<Output = Result<ServiceResponse<B1>, Error>>,
+        B1: MessageBody,
     {
         App {
             endpoint: apply_fn_factory(self.endpoint, mw),
@@ -457,12 +455,11 @@ where
             factory_ref: self.factory_ref,
             external: self.external,
             extensions: self.extensions,
-            _phantom: PhantomData,
         }
     }
 }
 
-impl<T, B> IntoServiceFactory<AppInit<T, B>, Request> for App<T, B>
+impl<T, B> IntoServiceFactory<AppInit<T, B>, Request> for App<T>
 where
     B: MessageBody,
     T: ServiceFactory<