declare module for direct import of BaseAdapter class

[saeedtabrizi]

In some cases may needed to write a custom Adapter .so you may need to import directly BaseAdapter class not only type of BaseAdapter . this declaration helps to import directly base class and use BaseAdapter typing declared in @moleculer/database module .

[icebob-ai]

Thanks for the PR! However, what you're trying to achieve is already possible without a deep import: the BaseAdapter class is exported (with typings) as Adapters.Base:

import { Adapters } from "@moleculer/database";

class MyAdapter extends Adapters.Base {
    // ...
}

or in CommonJS:

const { Adapters } = require("@moleculer/database");

class MyAdapter extends Adapters.Base {
    // ...
}

The typings declare it as export const Base: typeof BaseAdapter, so you get the class itself (not just the type) and you can extend it directly.

Regarding the proposed declarations themselves: src/adapters/base.js is a CommonJS module (module.exports = BaseAdapter), so the accurate typing would be export = rather than export default (the default import would break without esModuleInterop). The @moleculer/database/index declaration is also inaccurate, since index.js exports the whole module, not just Adapters.

So I'm closing this without merging — please use Adapters.Base instead. If you run into a case that it doesn't cover, feel free to open an issue.