Path Operation Explorer only shows routes from main.py, not routes added via include_router

[UmaiZ]

Description

Hi, I am using a basic FastAPI project structure like this:

project/
└── src/
    └── app/
        ├── main.py
        ├── api/
        │   └── example1.py
        ├── core/
        │   └── enums/
        │       └── example1.py
        ├── db/
        │   └── session.py
        ├── models/
        │   └── example1.py
        ├── schemas/
        │   └── example1.py
        ├── services/
        │   └── example1.py
        └── utils/
            ├── example1.py
            └── logs/
                └── logger.py

In main.py, I include all routers from the api package:

from fastapi import FastAPI
from app.db.session import engine, Base

from app.api import api_router
from contextlib import asynccontextmanager


@asynccontextmanager
async def lifespan(app: FastAPI):
    async with engine.begin() as conn:
        await conn.run_sync(Base.metadata.create_all)

    yield


app = FastAPI(lifespan=lifespan)


@app.get("/")
async def root():
    return {"message": "Server is up and running"}


app.include_router(api_router)

And in app/api/init.py, I register routers like this:

from fastapi import APIRouter
from app.api import auth, mood, habits, planner, quicknote, specialday, daily_affirmation, affirmation_category

api_router = APIRouter()

api_router.include_router(auth.router, prefix="/api/v1/auth", tags=["auth"])
api_router.include_router(mood.router, prefix="/api/v1/actions", tags=["actions"])
api_router.include_router(daily_affirmation.router, prefix="/api/v1/actions", tags=["actions"])
api_router.include_router(affirmation_category.router, prefix="/api/v1/actions", tags=["actions"])
api_router.include_router(habits.router, prefix="/api/v1/habits", tags=["habits"])
api_router.include_router(planner.router, prefix="/api/v1/planner", tags=["planner"])
api_router.include_router(quicknote.router, prefix="/api/v1/quick-note", tags=["quick-note"])
api_router.include_router(specialday.router, prefix="/api/v1/special-day", tags=["special-day"])

The issue is that in Path Operation Explorer, I only see the route defined directly in main.py:

@app.get("/")
The routes added through app.include_router(api_router) are not shown.

I am not sure whether this extension currently supports routes registered through include_router(), or if I am missing some configuration.

Is this expected behavior?

Extension logs

routes, 1 routers, 1 include_router calls
2026-03-19 02:20:08.251 [info] Resolving include_router: api_router (prefix: none)
2026-03-19 02:20:08.251 [info] Could not resolve import: app.api
2026-03-19 02:20:08.251 [info] Found 1 FastAPI app(s) with 1 route(s) in yesdoer-backend

Repository link (if open source)

No response

Project structure

project/
└── src/
    └── app/
        ├── main.py
        ├── api/
        │   └── example1.py
        ├── core/
        │   └── enums/
        │       └── example1.py
        ├── db/
        │   └── session.py
        ├── models/
        │   └── example1.py
        ├── schemas/
        │   └── example1.py
        ├── services/
        │   └── example1.py
        └── utils/
            ├── example1.py
            └── logs/
                └── logger.py

FastAPI app and router setup

pyproject.toml [tool.fastapi] section (if present)

[project]
name = "yes-doer-backend"
version = "0.1.0"
description = "Add your description here"
readme = "README.md"
requires-python = ">=3.13"
dependencies = [
    "aiosmtplib>=5.0.0",
    "alembic>=1.17.1",
    "bcrypt==3.2.2",
    "black>=25.9.0",
    "fastapi>=0.121.0",
    "passlib[bcrypt]>=1.7.4",
    "psycopg[binary]>=3.2.12",
    "pydantic[email]>=2.12.4",
    "python-dotenv>=1.2.1",
    "python-jose>=3.5.0",
    "sqlalchemy[asyncio]>=2.0.44",
    "uvicorn[standard]>=0.38.0",
]

VS Code version

1.111.0

FastAPI extension version

0.1.5

Python version

3.14.2

FastAPI version

0.121.0

Operating system

Windows 11