Using fetch to interact with authenticated REST API endpoints

In this section, we'll properly wire up posting questions and answers to our REST API. As part of this work, we will enhance our http function to use a bearer token from Auth0 in the HTTP request. This is because the endpoints for posting questions and answers are protected in the REST API and require a valid bearer token.

All of our changes will be in QuestionsData.ts—our user interface components will be unchanged. 

Posting a question to the REST API

We are going to change the implementation for posting a question to use an access token from Auth0:

1. Let's start by importing the function that gets the access token from Auth0 into QuestionsData.ts:

   import { getAccessToken } from './Auth';

2. Let's change the implementation of the postQuestion function to the following:

   export const postQuestion...