diff --git a/backend/dev.db b/backend/dev.db
index fcfbf0a..0fe3af0 100644
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diff --git a/backend/pyrefly.toml b/backend/pyrefly.toml
index 91fc77f..906a017 100644
--- a/backend/pyrefly.toml
+++ b/backend/pyrefly.toml
@@ -1 +1,5 @@
-[tool.pyrefly]
\ No newline at end of file
+[tool.pyrefly]
+
+project-includes = [
+    "./**/*.py",
+]
\ No newline at end of file
diff --git a/backend/src/backend/__pycache__/__init__.cpython-314.pyc b/backend/src/backend/__pycache__/__init__.cpython-314.pyc
index baabfe1..e0ffbc4 100644
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diff --git a/backend/src/backend/__pycache__/dependencies.cpython-314.pyc b/backend/src/backend/__pycache__/dependencies.cpython-314.pyc
new file mode 100644
index 0000000..8fe1123
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diff --git a/backend/src/backend/__pycache__/main.cpython-314.pyc b/backend/src/backend/__pycache__/main.cpython-314.pyc
index 44c34e8..cc7f219 100644
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diff --git a/backend/src/backend/dependencies.py b/backend/src/backend/dependencies.py
new file mode 100644
index 0000000..49d6ead
--- /dev/null
+++ b/backend/src/backend/dependencies.py
@@ -0,0 +1,13 @@
+from typing import Annotated
+
+from fastapi import Header, HTTPException
+
+
+async def get_token_header(x_token: Annotated[str, Header()]):
+    if x_token != "fake-super-secret-token":
+        raise HTTPException(status_code=400, detail="X-Token header invalid")
+
+
+async def get_query_token(token: str):
+    if token != "jessica":
+        raise HTTPException(status_code=400, detail="No Jessica token provided")
\ No newline at end of file
diff --git a/backend/src/backend/internal/__pycache__/__init__.cpython-314.pyc b/backend/src/backend/internal/__pycache__/__init__.cpython-314.pyc
new file mode 100644
index 0000000..a6c85ca
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diff --git a/backend/src/backend/internal/__pycache__/database.cpython-314.pyc b/backend/src/backend/internal/__pycache__/database.cpython-314.pyc
new file mode 100644
index 0000000..ab0bf1b
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diff --git a/backend/src/backend/internal/database.py b/backend/src/backend/internal/database.py
new file mode 100644
index 0000000..16820d8
--- /dev/null
+++ b/backend/src/backend/internal/database.py
@@ -0,0 +1,16 @@
+from collections.abc import Generator
+from sqlmodel import Session
+from sqlmodel import SQLModel
+from sqlmodel import create_engine
+sqlite_file = "dev.db"
+sqlite_url = f"sqlite:///{sqlite_file}"
+
+connect_args = {"check_same_thread": False}
+engine = create_engine(sqlite_url, connect_args=connect_args)
+
+def create_db_and_tables():
+    SQLModel.metadata.create_all(engine)
+
+def get_session() -> Generator[Session, None, None]:
+    with Session(engine) as session:
+        yield session
diff --git a/backend/src/backend/main.py b/backend/src/backend/main.py
index d6b4e54..8bb7703 100644
--- a/backend/src/backend/main.py
+++ b/backend/src/backend/main.py
@@ -1,56 +1,19 @@
-from email.policy import default
-from typing import Annotated
+from .routers import subscriptions
+from backend.internal.database import create_db_and_tables
 from fastapi import APIRouter
-from contextlib import asynccontextmanager
-from fastapi import Depends
 from fastapi import FastAPI
-from sqlmodel import Field, Session, SQLModel, create_engine, select
 
 
-# TODO: sql zeugs richtig implementieren nach FastApi docs
 # TODO: Integrationtests schreiben
 # TODO: Api Specs definieren (Subscription, Comment, Like)
 # TODO: Settings hinzufügen
 
-class Subscription(SQLModel, table=True):
-    id: int | None = Field(default=None, primary_key=True)
-    email: str = Field(index=True, unique=True)
-    active: bool = Field()
-
-sqlite_file = "dev.db"
-sqlite_url = f"sqlite:///{sqlite_file}"
-
-connect_args = {"check_same_thread": False}
-engine = create_engine(sqlite_url, connect_args=connect_args)
-
-def create_db_and_tables():
-    SQLModel.metadata.create_all(engine)
-
-def get_session():
-    with Session(engine) as session:
-        yield session
-
-SessionDep = Annotated[Session, Depends(get_session)]
-
 app = FastAPI()
 
 @app.on_event("startup")
 def on_startup():
     create_db_and_tables()
 
-
 router = APIRouter()
 
-@router.get("/subscription/")
-def get_sub():
-    return {"name":"TestSub"}
-
-@router.post("/subscription/")
-def create_subscription(subscription: Subscription, session: SessionDep) -> Subscription:
-    session.add(subscription)
-    session.commit()
-    session.refresh(subscription)
-    return subscription
-
-
-app.include_router(router)
+app.include_router(subscriptions.router)
diff --git a/backend/src/backend/routers/__pycache__/__init__.cpython-314.pyc b/backend/src/backend/routers/__pycache__/__init__.cpython-314.pyc
index a0e08ca..5cd87a4 100644
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diff --git a/backend/src/backend/routers/__pycache__/subscriptions.cpython-314.pyc b/backend/src/backend/routers/__pycache__/subscriptions.cpython-314.pyc
index 9298954..3d436a8 100644
Binary files a/backend/src/backend/routers/__pycache__/subscriptions.cpython-314.pyc and b/backend/src/backend/routers/__pycache__/subscriptions.cpython-314.pyc differ
diff --git a/backend/src/backend/routers/subscriptions.py b/backend/src/backend/routers/subscriptions.py
index fb8c9f8..3835620 100644
--- a/backend/src/backend/routers/subscriptions.py
+++ b/backend/src/backend/routers/subscriptions.py
@@ -1,20 +1,34 @@
-from sqlmodel import Field
-from sqlmodel import SQLModel
-from backend.main import SessionDep
+from ..internal.database import get_session
+from fastapi import Depends
 from fastapi import APIRouter
+from sqlmodel import Field
+from sqlmodel import SQLModel, Session
 
-router = APIRouter()
+
+class Subscription(SQLModel, table=True):
+    id: int | None = Field(default=None, primary_key=True)
+    email: str = Field(index=True, unique=True)
+    active: bool = Field()
 
 
 
+router = APIRouter(
+    prefix="/subscriptions",
+    tags=["subscriptions"],
+    dependencies=[],
+    responses={404: {"description": "Not found"}},
+)
 
-# @router.get("/subscription/")
-# def get_sub():
-#     return {"name":"TestSub"}
+@router.get("/")
+def get_sub():
+    return {"name":"TestSub"}
 
-# @router.post("/subscription/")
-# def create_subscription(subscription: Subscription, session: SessionDep) -> Subscription:
-#     session.add(subscription)
-#     session.commit()
-#     session.refresh(subscription)
-#     return subscription
\ No newline at end of file
+@router.post("/")
+def create_subscription(
+    subscription: Subscription, 
+    session: Session = Depends(get_session),
+) -> Subscription:
+    session.add(subscription)
+    session.commit()
+    session.refresh(subscription)
+    return subscription
\ No newline at end of file