apollo.context.ts

import Express from 'express';
import diContainer from 'true-di';
import createDataAccessService from '../services/data-access-service';
import createAuthorizationService from '../services/authorization-service';
import { IApolloContext } from '../interfaces';

const createContext = (dbConnection: Promise<Connection>) => ({ req }: { req: Express.Context }) =>
  dbConnection.then(
    conn => diContainer<IApolloContext>({
      dataAccessService: () => createDataAccessService(conn),
      authorizationService: ({ dataAccessService }) => createAuthorizationService(
        dataAccessService,
        req.headers['X-Authorization']
      );
    })
 );
  
 export default createContext;