Is there support for multiple Dbs per app?

[AFDevMike]

Is there support for multiple Dbs per app?

Following: https://github.com/cyrilletuzi/angular-async-local-storage/blob/master/docs/PREFIX.md I created 2 modules each providing a different prefix in the same app but the data does not store segregated as I expected.

We are on TS 3.2+ and so can't update to Version 7 and am looking for a mechanism to delete .clear() groups of related entities.

Thank you for this excellent product!

[cyrilletuzi]

Hi @AFDevMike, thanks for your interest in this lib.

Currently, v7.4+ of the lib is needed. The recipe for multiple storages is here.

Note that v7 is not recommended, but it can work with TypeScript 3.2 if you work around the TypeScript issue (see #64).

v8 (tracked in #76) should be fully compatible with Angular 7 (and TS 3.1 & 3.2). Note that the behavior of keys() may change in v8 (currently it is returning all the keys at once, maybe v8 will iterate on keys, I still need to investigate this).

A real feature for multiple databases would be a good idea, but:

1. it needs some design: I would suggest to stay as close as possible to the upcoming kv-storage standard, which has a multiple databases feature. But it should be adapted to Angular. As a service in Angular is a singleton, I'm not sure what would be the best practice to handle multiple storage services.

2. I currently have not much time for new features (upcoming v8 is already a lot of work). So 3 possibilities:

• wait, with no guarantees,
• do a PR (after having agreed on API design),
• see if your company would be OK to sponsor this so I can include it in my work time.

[cyrilletuzi]

For reference: this request was already made and there was already some investigation in #39 with @juristr and @dphochman.

v7 already answered to this use case, but the upcoming kv-storage opened new options of API design.

[cyrilletuzi]

For documentation: multiple databases can already be simulated, see the recipe here.

v8 will ease this recipe.