Type resolve-value

[rubenswieringa]

Changes in this PR allow you to use methods on the returned provider (in a TS project) without having to homecook your own type in your own codebase:

before:

type Provider = { on: (eventType: string, handler: () => unknown) => void }; // homecooking my own type
const provider = (await detectEthereumProvider()) as Provider;
provider.on('whenever', whatever);

now:

const provider = await detectEthereumProvider();
provider!.on('whenever', whatever);

or:

const provider = await detectEthereumProvider<MyCustomProvider>();
provider!.customProviderMethod();

---

Would love some feedback on whether this is a good idea or on why perhaps this might not be a great idea.

[rekmarks]

This looks strictly better, thanks!

[rekmarks]

Ah, @rubenswieringa, build error:

Error: src/index.ts(70,17): error TS2345: Argument of type 'EthereumProvider' is not assignable to parameter of type 'T | PromiseLike<T | null> | null | undefined'.

CI failed.

[rekmarks]

LGTM. Thank you, @rubensw!