Dependency injections PyWA and FastAPI

[mhaugestad]

Hi, I am building a chatbot in whatsapp and I would like to incorporate data from my database around the user interacting with the bot into the bots behaviour.

In FastAPI I would normally pass the SQL Session object as a dependency to the endpoint. For example

def get_db():
    db = SessionLocal()
    try:
        yield db
    finally:
        db.close()
        
        
@app.get("/")
def query_database(db=Depends(get_db)):
    db.query().filter().first()
    ...

I was wondering if anyone had any examples of how they would do something equivalent within the PyWA framework?

[david-lev]

This shouldn't work out of the box
fastapi uses some 'dirty tricks' to achieve this goal...
There are a number of external libraries that you can use for this. One of them is python-dependency-injector.

[mhaugestad]

Thanks! I will give this a try! :)