Load subsequent modules after a DB Call (TypeScript, NodeJs, Inversify)

Question

I am working on a project in which we were using a TypeScript Enum to maintain a list of currencies data that we are using in our Project but problem is whenever we introduce a new Currency, We will have to hardcode that Currency Enum to add currency. I was assigned a task to remove local currency enum and used a db call to get that currency list. Here is the enum :-

   export enum Currencies {
      USD = 'USD'
   }

I have added migration to add currencies data to db and also added an injectable class which contains db call to get that list here is the code for it:-

@injectable()
export class CurrencyService {
  @inject(SERVICE_IDENTIFIER.CurrencyRepository) private currencyRepository: ICurrencyRepository;

  public async getCurrencies(): Promise<any> {
        let currencies = {};
    const currencyList =  await this.currencyRepository.distinct("currency_label");
    currencyList.forEach(currency => currencies[currency] = currency);
      return currencies;
}}

This is working fine. My next task is to get this DB Currencies available to different modules that were using Currency file which is as follows:-

import { Currencies } from './enum'; 
export const paymentQuery = Joi.object().keys({
  currency: Joi.string().valid(Object.values(Currencies)).required(),
});
export type NewCardPaymentQuery = Joi.extractType<typeof paymentQuery>;

So i rewrite the Currencies enum file as follows :-

 import { container } from './inversifyContainer'; 
 let currencies = container.get(CurrencyService).getCurrencies();
 export const Currencies = currencies;

It has two problems:-

First:- container.get is undefined (That's is container is undefined, unintialized)(when enum file is compiled container is unavailable).

Second:- getCurrencies returns a promise which means if i use async function call to initialize the data, all the subsequent files that are using the Currencies recieves an empty Object which can't be changed later.

So, I want to load these files after application has initialized. Can someone guide how it can be possible ?