使用forRoot的Angular库 [英] Angular library using forRoot

问题描述

我正在设置一个我希望其他项目使用的库.我正在尝试将配置文件传递给我定义的模块，如下所示:

I am setting up a library that I would like my other projects to use. I am trying to pass a config file to my module which I have defined like this:

@NgModule({
  declarations: [ImageComponent],
  imports: [CommonModule],
})
export class ImagesModule {
  static forRoot(config: ImagesConfig): ModuleWithProviders<ImagesModule> {
    return {
      ngModule: ImagesModule,
      providers: [{ provide: ImagesConfig, useValue: config }],
    };
  }
}

export class ImagesConfig {
  cloudName: string;
}

看起来不错，但现在我想在实际模块中使用 cloudName ，如下所示:

This looks ok, but now I would like to use the cloudName in the actual module, like this:

@NgModule({
  declarations: [ImageComponent],
  imports: [
    CommonModule,

    CloudinaryModule.forRoot(Cloudinary, {
      config.cloudName,
    }),
  ],
})
export class ImagesModule {
  static forRoot(config: ImagesConfig): ModuleWithProviders<ImagesModule> {
    return {
      ngModule: ImagesModule,
      providers: [{ provide: ImagesConfig, useValue: config }],
    };
  }
}

export class ImagesConfig {
  cloudName: string;
}

这可能吗?如果是这样，我该怎么办?

Is this possible? If so, how can I do it?

我已经这样创建了模块:

I have created the module as such:

import { ModuleWithProviders, NgModule } from '@angular/core';
import { CommonModule } from '@angular/common';
import { ImageComponent } from './image.component';

import { CloudinaryModule } from '@cloudinary/angular-5.x';
import * as Cloudinary from 'cloudinary-core';

import { ImagesConfig } from './images-config';
import { IMAGES_CONFIG } from './images-config.token';

@NgModule({
  declarations: [ImageComponent],
  imports: [CommonModule],
})
export class ImagesModule {
  static forRoot(config: ImagesConfig): ModuleWithProviders<ImagesModule> {
    return {
      ngModule: ImagesModule,
      providers: [
        { provide: IMAGES_CONFIG, useValue: config },
        ...CloudinaryModule.forRoot(Cloudinary, {
          cloud_name: config.cloudName,
        }).providers,
      ],
    };
  }
}

images-config.ts 和 images-config.token.ts 分别如下所示:

export interface ImagesConfig {
  cloudName: string;
}

和

import { InjectionToken } from '@angular/core';

export const IMAGES_CONFIG = new InjectionToken('IMAGES_CONFIG');

当我尝试在 public-api.ts 中使用时:

/*
* Public API Surface of situ-angular-components
*/

export * from './lib/images/images-config';


export * from './lib/images/images.module';

所有这些都可以编译，但是如果我尝试构建库，则会出现此错误:

It all compiles, but if I try to build my library I get this error:

不幸的是，@ yurzui提供的答案似乎无效.如果我将模块更改为此:

Unfortunately, the answer @yurzui provided doesn't appear to work. If I change my module to this:

@NgModule({
  declarations: [ImageComponent],
  imports: [
    CommonModule,
    CloudinaryModule.forRoot(Cloudinary, { cloud_name: 'demo' }),
  ],
})
export class ImagesModule {}

并建立我的库，它可以工作.如果我这样做:

And build my library, it works. If I do it like this:

@NgModule({
  declarations: [ImageComponent],
  imports: [CommonModule],
})
export class ImagesModule {
  static forRoot(config: ImagesConfig): ModuleWithProviders<ImagesModule> {
    return {
      ngModule: ImagesModule,
      providers: [
        { provide: IMAGES_CONFIG, useValue: config },
        ...CloudinaryModule.forRoot(Cloudinary, {
          cloud_name: config.cloudName,
        }).providers,
      ],
    };
  }
}

当我尝试构建库时，出现错误提示:

When I try to build the library, I get an error stating:

如果"cl-image"是Angular组件，则请验证它是否属于此模块.

If 'cl-image' is an Angular component, then verify that it is part of this module.

我正在 ImageComponent 中使用 cl-image .

推荐答案

您可以尝试以下操作:

@NgModule({
  declarations: [ImageComponent],
  imports: [
    CommonModule,
    CloudinaryModule,
  ],
})
export class ImagesModule {
  static forRoot(config: ImagesConfig): ModuleWithProviders<ImagesModule> {
    return {
      ngModule: ImagesModule,
      providers: [
        { provide: ImagesConfig, useValue: config },
        ...CloudinaryModule.forRoot(Cloudinary, {
          // pass config.cloudName here,
        }).providers,
      ],
    };
  }
}

export class ImagesConfig {
  cloudName: string;
}

这篇关于使用forRoot的Angular库的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！