Swagger-codegen: [typescript-angular] Bug ModuleWithProviders missing generic type for Angular 10

[LeanderG]

Description

ModuleWithProviders without a generic type is deprecated since Angular 9 and mandatory since Angular 10:
See: https://github.com/angular/angular/commit/20cc3ab37e2d79761993dfcec2cafd6393b4f414

Swagger-codegen version

3.0.21

Steps to reproduce

Using the generated code (without npm) in an Angular 10 project leads to a TypeScript error and the application not compiling.

Suggest a fix/enhancement

Change ModuleWithProviders to ModuleWithProviders<ApiModule> to: https://github.com/swagger-api/swagger-codegen/blob/e6d69ab23a8ad4de1c57bea18a11c386bdd81022/modules/swagger-codegen/src/main/resources/typescript-angular/api.module.mustache#L21.

Edit:
Looks like the option to add a generic type was added in Angular 6.1.0, so my solution breaks earlier versions.
https://github.com/angular/angular/commit/60aeee7abfcc149d9f33ed9519b242b4bccea641#diff-968ca8dead1eca4223cb534b9f0b9c02R79

[bosco688]

Hey,

do we really need to support Angular < 6.1.x? Your solution seems to work, so push it please.
I have the same Problem with Angular 10 and swagger-codegen.

[LeanderG]

The typescript-angular generator maintenance could be better. There are only samples up to Angular 6. Version 7 was released almost 2 years ago. There is a fork of this project called OpenAPI Generator which has samples up to Angular 9. I'm using it with Angular 10 and it is working great.

[twopelu]

Same problem here, just migrated to Angular 10 and found that we have to change the auto-generated code to make it work :-(

Edit: I have tried the OpenAPITools generator 5.0 0-beta2 and it looks like working, still have to make further tests but the code generated compiles in Angular 10.

[netrounds-guillaume]

As a workaround, I am running the following command after generating the typescript-angular client:

sed -i 's/ModuleWithProviders {/ModuleWithProviders<ApiModule> {/' <path_to_generated_folder>/api.module.ts

This is the same approach as a workaround for https://github.com/swagger-api/swagger-codegen/issues/8836