Wiring Dependencies in sanic for background tasks not working

[aurthurm]

I have a sanic app. I want to run some background jobs. I have configured the container but am getting unexpected beavior

# container.py
"""Containers module."""

from dependency_injector import containers, providers

from domain.job.ports.repository import IJobRepository
from domain.job.ports.service import IJobService
from domain.job.services import JobService
from infrastructure.database.job.repository import JobRepository

class Container(containers.DeclarativeContainer):
    config = providers.Configuration()

    database = "xxxxx"  # Database()

    job_repository = providers.Factory(IJobRepository, JobRepository, db=database)
    #
    job_service = providers.Factory(
        IJobService, JobService,
        repository=job_repository,
    )

here are my background task where they are added to sanic add_task

from sanic import Sanic
from dependency_injector.wiring import Provide, inject
from adapters.application.container import Container
from domain.job.ports.service import IJobService

@inject
async def job_runner(job_service: IJobService= Provide[Container.job_service]):
    print(job_service)

    sorted = await job_service.fetch_sorted()

async def init_jobs():
    await job_runner()

def run_bg_tasks(app: Sanic):
    app.add_task(init_jobs)

i registred my container as below

# boot.py
from .container import Container
from adapters.application.tasks import run_bg_tasks

...

def register_felicity(app: Sanic):
    register_configs(app)
    register_events(app)
    register_middlewares(app)
    register_dependencies(app)
    register_blueprints(app)
    register_graphql(app)
    register_health(app)

    app.ctx.container = Container()

    run_bg_tasks(app)

Finally i run sanic application

# main.py

"""Note:
    - The felicity app must be created first before importing register_felicity.
    - This is important to register felicity in sanic registry :) its a sanic thing anyways
"""
from sanic import Sanic

felicity = Sanic("felicity-hexagonal")
from adapters.application import register_felicity

register_felicity(felicity)

i then ran the app

uvicorn main:felicity --reload

The print(job_service) outputs <dependency_injector.wiring.Provide object at 0x7f7079e17590>

The call sorted = await job_service.fetch_sorted() fails with error

sorted = await job_service.fetch_sorted()
                   ^^^^^^^^^^^^^^^^^^^^^^^^
AttributeError: 'Provide' object has no attribute 'fetch_sorted'

[aurthurm]

My use case it to rum some jobs at some intervals. These jobs can not be run simpy by the sanic add_task as they are created deep inside the application. I have a Job service that needs to keep track of all created jobs and then runs them. These jobs also depend on services some with many dependencies, which is why i need dependency injection. I did not find a way to use default sanic dependency injection.

If there is a way to also use this library with apscheduler. i am open to other better alternative usecases

Thank you

[linuxd3v]

@aurthurm Did you ever figured our wiring with sanic? For my I cannot get @inject to work. Like - I juts pull container from sanic context - and pull service from there, but automatic @inject wiring doesn't work with regular handlers (sanic 24.6).