diff --git a/api/api.py b/api/api.py
new file mode 100644
index 0000000..e6f6683
--- /dev/null
+++ b/api/api.py
@@ -0,0 +1,9 @@
+import argparse
+import app
+
+if __name__ == "__main__":
+    deepface_app = app.create_app()
+    parser = argparse.ArgumentParser()
+    parser.add_argument("-p", "--port", type=int, default=5000, help="Port of serving api")
+    args = parser.parse_args()
+    deepface_app.run(host="0.0.0.0", port=args.port)
diff --git a/deepface/DeepFace.py b/deepface/DeepFace.py
index 9740fb0..d4400e0 100644
--- a/deepface/DeepFace.py
+++ b/deepface/DeepFace.py
@@ -808,6 +808,30 @@ def extract_faces(
     return resp_objs
 
 
+# ---------------------------
+# deprecated functions
+
+
+def detectFace(
+    img_path, target_size=(224, 224), detector_backend="opencv", enforce_detection=True, align=True
+):
+    print("⚠️ Function detectFace is deprecated! Use extract_faces instead of this.")
+
+    face_objs = extract_faces(
+        img_path=img_path,
+        target_size=target_size,
+        detector_backend=detector_backend,
+        enforce_detection=enforce_detection,
+        align=align,
+        grayscale=False,
+    )
+
+    extracted_face = None
+    if len(face_objs) > 0:
+        extracted_face = face_objs[0]["face"]
+    return extracted_face
+
+
 # ---------------------------
 # main
 
diff --git a/deepface/commons/functions.py b/deepface/commons/functions.py
index 092dae2..b9ee0de 100644
--- a/deepface/commons/functions.py
+++ b/deepface/commons/functions.py
@@ -251,3 +251,35 @@ def find_target_size(model_name):
         raise ValueError(f"unimplemented model name - {model_name}")
 
     return target_size
+
+
+# ---------------------------------------------------
+# deprecated functions
+
+
+def preprocess_face(
+    img,
+    target_size=(224, 224),
+    detector_backend="opencv",
+    grayscale=False,
+    enforce_detection=True,
+    align=True,
+):
+    print("⚠️ Function preprocess_face function is deprecated! Use extract_faces instead of this.")
+    result = None
+    img_objs = extract_faces(
+        img=img,
+        target_size=target_size,
+        detector_backend=detector_backend,
+        grayscale=grayscale,
+        enforce_detection=enforce_detection,
+        align=align,
+    )
+
+    if len(img_objs) > 0:
+        result, _, _ = img_objs[0]
+        # discard expanded dimension
+        if len(result.shape) == 4:
+            result = result[0]
+
+    return result
diff --git a/setup.py b/setup.py
index 8c75293..7b192f0 100644
--- a/setup.py
+++ b/setup.py
@@ -5,7 +5,7 @@ with open("README.md", "r", encoding="utf-8") as fh:
 
 setuptools.setup(
     name="deepface",
-    version="0.0.78",
+    version="0.0.79",
     author="Sefik Ilkin Serengil",
     author_email="serengil@gmail.com",
     description="A Lightweight Face Recognition and Facial Attribute Analysis Framework (Age, Gender, Emotion, Race) for Python",