app/main.py

from fastapi import FastAPI
# Import all your routers
from app.routers import random_number_generator, help, calculator # <-- Import the new router

app = FastAPI()

# Include all routers
app.include_router(random_number_generator.router)
app.include_router(help.router)
app.include_router(calculator.router) # <-- Include the new router

@app.get("/")
def greet_json():
    return {"Hello": "World!", "message": "Go to /docs to see all available endpoints!"}