You need to provide 1 type argument(s) for the Generic type ModuleWithProviders<T> in Angular 10 Swagger Codegen

Question

You need to provide 1 type argument(s) for the Generic type ModuleWithProviders<T> in Angular 10 Swagger Codegen

Currently, I am generating Codegen proxies using . Upon implementing this in Angular 10, I encountered the following error. How can this issue be resolved?

The error message reads: 'Generic type 'ModuleWithProviders' requires 1 type argument(s).'

export class ApiModule {
    public static forRoot(configurationFactory: () => Configuration): ModuleWithProviders {
        return {
            ngModule: ApiModule,
            providers: [ { provide: Configuration, useFactory: configurationFactory } ]
        };
    }

    constructor( @Optional() @SkipSelf() parentModule: ApiModule,
                 @Optional() http: HttpClient) {
        if (parentModule) {
            throw new Error('ApiModule is already loaded. Import in your base AppModule only.');
        }
        if (!http) {
            throw new Error('You need to import the HttpClientModule in your AppModule! \n' +
            'See also https://github.com/angular/angular/issues/20575');
        }
    }
}

angular typescript swagger swagger-codegen angular10

Answer 1

Answer №1

This error message indicates that the ModuleWithProviders class requires one generic parameter. Therefore, it should be used as ModuleWithProviders<T>, where T represents a type.

UPDATE:

The class is outlined as follows:

interface ModuleWithProviders<T> {
  ngModule: Type<T>
  providers?: Provider[]
}

.

export class ApiModule {
  public static forRoot(configurationFactory: () => Configuration) : ModuleWithProviders<ApiModule> {
    return {
        ngModule: ApiModule,
        providers: [ { provide: Configuration, useFactory: configurationFactory } ]
    };
}

Explore Resource:

https://angular.io/guide/migration-module-with-providers

Answer 2

This error message indicates that the ModuleWithProviders class requires one generic parameter. Therefore, it should be used as ModuleWithProviders<T>, where T represents a type.

UPDATE:

The class is outlined as follows:

interface ModuleWithProviders<T> {
  ngModule: Type<T>
  providers?: Provider[]
}

.

export class ApiModule {
  public static forRoot(configurationFactory: () => Configuration) : ModuleWithProviders<ApiModule> {
    return {
        ngModule: ApiModule,
        providers: [ { provide: Configuration, useFactory: configurationFactory } ]
    };
}

Explore Resource:

https://angular.io/guide/migration-module-with-providers

Answer 3

Answer №2

io.swagger.swagger-codegen officially added full support for Angular 10 starting from version 2.4.17. For more information on the specific fix included in this update, you can refer to this pull request.

In line with the recommendation from djf, make sure to utilize the parameter

--additional-properties ngVersion=10

when executing the generate command to instruct io.swagger.swagger-codegen to integrate Angular 10.

Answer 4

io.swagger.swagger-codegen officially added full support for Angular 10 starting from version 2.4.17. For more information on the specific fix included in this update, you can refer to this pull request.

In line with the recommendation from djf, make sure to utilize the parameter

--additional-properties ngVersion=10

when executing the generate command to instruct io.swagger.swagger-codegen to integrate Angular 10.

Answer 5

Answer №3

We encountered a similar issue but found a solution. By using custom *.mustache templates with the swagger-codegen-cli and the -t switch (refer to the swagger doc), you can customize the behavior.

Our modified api.module.mustache template now appears as follows:

import { NgModule, ModuleWithProviders, SkipSelf, Optional } from '@angular/core';
import { Configuration } from './configuration';
{{#useHttpClient}}import { HttpClient } from '@angular/common/http';{{/useHttpClient}}
{{^useHttpClient}}import { Http } from '@angular/http';{{/useHttpClient}}

{{#apiInfo}}
{{#apis}}
import { {{classname}} } from './{{importPath}}';
{{/apis}}
{{/apiInfo}}

@NgModule({
  imports:      [],
  declarations: [],
  exports:      [],
  providers: [
    {{#apiInfo}}{{#apis}}{{classname}}{{#hasMore}},
    {{/hasMore}}{{/apis}}{{/apiInfo}} ]
})
export class ApiModule {
    public static forRoot(configurationFactory: () => Configuration): ModuleWithProviders<ApiModule> {
        return {
            ngModule: ApiModule,
            providers: [ { provide: Configuration, useFactory: configurationFactory } ]
        };
    }

    constructor( @Optional() @SkipSelf() parentModule: ApiModule,
                 @Optional() http: {{#useHttpClient}}HttpClient{{/useHttpClient}}{{^useHttpClient}}Http{{/useHttpClient}}) {
        if (parentModule) {
            throw new Error('ApiModule is already loaded. Import in your base AppModule only.');
        }
        if (!http) {
            throw new Error('You need to import the {{#useHttpClient}}HttpClientModule{{/useHttpClient}}{{^useHttpClient}}HttpModule{{/useHttpClient}} in your AppModule! \n' +
            'See also https://github.com/angular/angular/issues/20575');
        }
    }
}

The only modification needed is changing ModuleWithProviders to

ModuleWithProviders<ApiModule>

. This adjustment ensures compatibility with Angular 10 when generating api.module.ts files.

Answer 6

We encountered a similar issue but found a solution. By using custom *.mustache templates with the swagger-codegen-cli and the -t switch (refer to the swagger doc), you can customize the behavior.

Our modified api.module.mustache template now appears as follows:

import { NgModule, ModuleWithProviders, SkipSelf, Optional } from '@angular/core';
import { Configuration } from './configuration';
{{#useHttpClient}}import { HttpClient } from '@angular/common/http';{{/useHttpClient}}
{{^useHttpClient}}import { Http } from '@angular/http';{{/useHttpClient}}

{{#apiInfo}}
{{#apis}}
import { {{classname}} } from './{{importPath}}';
{{/apis}}
{{/apiInfo}}

@NgModule({
  imports:      [],
  declarations: [],
  exports:      [],
  providers: [
    {{#apiInfo}}{{#apis}}{{classname}}{{#hasMore}},
    {{/hasMore}}{{/apis}}{{/apiInfo}} ]
})
export class ApiModule {
    public static forRoot(configurationFactory: () => Configuration): ModuleWithProviders<ApiModule> {
        return {
            ngModule: ApiModule,
            providers: [ { provide: Configuration, useFactory: configurationFactory } ]
        };
    }

    constructor( @Optional() @SkipSelf() parentModule: ApiModule,
                 @Optional() http: {{#useHttpClient}}HttpClient{{/useHttpClient}}{{^useHttpClient}}Http{{/useHttpClient}}) {
        if (parentModule) {
            throw new Error('ApiModule is already loaded. Import in your base AppModule only.');
        }
        if (!http) {
            throw new Error('You need to import the {{#useHttpClient}}HttpClientModule{{/useHttpClient}}{{^useHttpClient}}HttpModule{{/useHttpClient}} in your AppModule! \n' +
            'See also https://github.com/angular/angular/issues/20575');
        }
    }
}

The only modification needed is changing ModuleWithProviders to

ModuleWithProviders<ApiModule>

. This adjustment ensures compatibility with Angular 10 when generating api.module.ts files.

You need to provide 1 type argument(s) for the Generic type ModuleWithProviders<T> in Angular 10 Swagger Codegen

Answer №1

Answer №2

Answer №3

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