Is the typescript definition exported correctly?

I’m having trouble with unfetch >= 3.1.1. The new TypeScript definition actually broke our build, and I’m not sure how to fix it.

The change was made in PR https://github.com/developit/unfetch/pull/89, in which the default export was removed from src/index.d.ts. Was this intentional? The PR is named “Fix isomorphic-unfetch definition” but packages/isomorphic-unfetch/index.d.ts is not changed, instead src/index.d.ts was changed.

Since src/index.mjs export default, shouldn’t src/index.d.ts also export default?

[balupton]

So if you do import fetch from 'isomorphic-unfetch' then the types work fine, but it fails to run, due to TypeError: isomorphic_unfetch_1.default is not a function

Searching that error, returns the recommendation of doing the following for commonjs modules import fetch = require('isomorphic-unfetch') however, then typescript complains there are no types, as the type definition is done with esmodules in mind, not commonjs modules

As such, I’ve done the following workaround for it:

import * as fetchImport from 'isomorphic-unfetch'
const fetch = (fetchImport.default || fetchImport) as typeof fetchImport.default

[samayo]

Still getting this error. Is there a fix for it?