web - add index type to Models that have additionalProperties set to …

[nartc]

…true

Current behavior

In the web SDK typings, Preferences is a type Preferences = {} which makes it tricky to work with in projects with TypeScript strict mode on.

Expected behavior

type Preferences should be an indexable type or a Record.

type Preferences = Record<string, any>;
// or
type Preferences = {
   [key: string]?: any;
}

This PR adds an indexable record to a model under namespace Models if its definition has additionalProperties: true

Additional information

I'm not sure how to verify the change with the current tests setup of this repo. Any suggestions would be much appreciated

[brandonroberts]

@TorstenDittmann @christyjacob4 we had a conversation about this PR already to allow more flexibility with the types. It will help Angular users better extend the base types.

[nartc]

@brandonroberts To clarify, in order to extend the type, the type itself has to be an interface because Declaration Merging only works with Interfaces. The SDK currently uses Type so to stay with that, I just make Preferences an indexable type so that the consumers can access any property they need.

Today, we can do the following:

Models.User<{bio: string, avatar: string}>;

In case where we want to quickly access a property without having to specify a custom Preferences type, this PR allows that

[TorstenDittmann]

@TorstenDittmann @christyjacob4 we had a conversation about this PR already to allow more flexibility with the types. It will help Angular users better extend the base types.

I don't quite remember how we handle types in the preferences, it's possible that the values only allow strings.