diff --git a/workshop-three/admin.py b/workshop-three/admin.py
index e69de29..c81cfc5 100644
--- a/workshop-three/admin.py
+++ b/workshop-three/admin.py
@@ -0,0 +1,46 @@
+from fastapi import APIRouter, HTTPException, Depends
+from fastapi.security import HTTPBasic, HTTPBasicCredentials
+from typing import Annotated
+from courses import COURSES
+from models import Course
+
+
+admin = APIRouter()
+
+security = HTTPBasic()
+
+
+def authenticate(credentials: Annotated[HTTPBasicCredentials, Depends(security)]):
+    if not (credentials.username == "admin") or not (credentials.password == "password"):
+        raise HTTPException(
+            status_code=401,
+            detail="Incorrect username or password",
+            headers={"WWW-Authenticate": "Basic"},
+        )
+    return credentials.username
+
+
+@admin.get("/users/me")
+def read_current_user(username: Annotated[HTTPBasicCredentials, Depends(authenticate)]):
+    return {"username": username}
+
+
+@admin.post("/add-course/{course_id}")
+async def add_course(course_id: int,
+                     course: Course,
+                     username: Annotated[HTTPBasicCredentials, Depends(authenticate)]
+                     ) -> Course:
+    if course_id in COURSES:
+        raise HTTPException(403, detail="Course already exists")
+    COURSES[course_id] = course
+    return COURSES[course_id]
+
+
+@admin.delete("/delete-course/{course_id}")
+async def delete_course(course_id: int,
+                        username: Annotated[HTTPBasicCredentials, Depends(authenticate)]
+                        ) -> Course:
+    if course_id in COURSES:
+        deleted = COURSES.pop(course_id)
+        return deleted
+    raise HTTPException(404, detail="Course not found")
\ No newline at end of file
diff --git a/workshop-three/main.py b/workshop-three/main.py
index 5a94e62..5196c0d 100644
--- a/workshop-three/main.py
+++ b/workshop-three/main.py
@@ -1,34 +1,15 @@
 from fastapi import FastAPI, Path, Query, HTTPException
 from typing import Optional
+from courses import COURSES
+from admin import admin
 
 app = FastAPI()
 
-COURSES = {
-    1: {
-        "name": "Data Visualization",
-        "professor": "Dana Willner",
-        "current_enr": 34,
-        "max_enr": 35,
-    },
-    2: {
-        "name": "Data Structures",
-        "professor": "Jim Deverick",
-        "current_enr": 35,
-        "max_enr": 35,
-    },
-    3: {
-        "name": "Computational Problem Solving",
-        "professor": "Timothy Davis",
-        "current_enr": 30,
-        "max_enr": 35,
-    },
-    4: {
-        "name": "Intro to Data Science",
-        "professor": "Dana Willner",
-        "current_enr": 36,
-        "max_enr": 35,
-    }
-}
+app.include_router(admin, tags=["admin"])
+
+my_courses= {}
+
+my_times={}
 
 
 @app.get("/")
diff --git a/workshop-three/models.py b/workshop-three/models.py
index e69de29..44dd632 100644
--- a/workshop-three/models.py
+++ b/workshop-three/models.py
@@ -0,0 +1,18 @@
+from pydantic import BaseModel, Field
+from typing import Optional
+
+
+class Time(BaseModel):
+    days: str = Field(description="Course meeting days", pattern="^[MTWRF]+$")
+    start: int
+    end: int
+
+
+class Course(BaseModel):
+    name: str
+    professor: str
+    current_enr: Optional[int] = 0
+    max_enr: int
+    time: Time
+
+