Exposing GraphQL based APIs

I have data stored in the file system (normalized across multiple small files) and I have written python functions to read/write data from the file system. Read API returns object of type Job. Write API expects an object of type Job to be passed as an argument.

def get_jobs(starttime, endtime):
  ''' Reads and returns jobs that ran between starttime and endtime interval '''


def put_job(job):
  ''' Persists Job object to a file system '''


class Job:
    def __init__(self, name, key, starttime, endtime):
        self.name = name 
        self.key = key
        self.starttime = starttime
        self.endtime = endtime

Now I want to expose these functions via a web server. I would prefer exposing GraphQL APIs with Django.

Questions:

• Is Django/Django REST framework a right choice for this? I am new to Django and GraphQL.
• Django models seem to be tightly coupled with Databases. Will I have to create another Job model class, and create it using Job returned by read_jobs function? If yes, how can I create a simple web application from here?

Note: Job object is a three-level nested object and has many attributes/properties. For the demonstration purpose, I kept only four attributes/properties in the question here.

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