Question about support for Standard Fetch API

[michaelzwong]

How can I use a custom fetch implementation that follows the standard Fetch API with the Box SDK without requiring a type adapter? My initial implementation involves adapting the types to the custom FetchOptionsInput/FetchResponse interface. This is not ideal because the adapter code duplicates Box SDK logic

Here's our current implementation:

// Our observable fetch (standard Fetch API)
const observableFetch = observableFetchFactory({
  fetchImpl: fetch,
  logger,
  metricsClient,
});

// Box SDK requires custom adapter
const boxClient = new BoxClient({
  networkSession: new NetworkSession({
    networkClient: {
      fetch: createBoxFetchAdapter({
        fetchImpl: observableFetch, // Our wrapped fetch
        auth,
        asUserId,
      }),
    },
  }),
});