Configuration injection token創建的factory方法：

factory方法返回的值是{}, inject(DefaultConfig)和inject(RootConfig)三者的深度merge.

而DefaultConfig和ConfigChunk又是另外兩個新的injection token：

對于DefaultConfigChunk，有太多的module貢獻在這個配置上了：DefaultConfigurationChunk:

一個具體的例子：

import { CommonModule } from '@angular/common'; import { HttpClientModule } from '@angular/common/http'; import { NgModule } from '@angular/core'; import { EffectsModule } from '@ngrx/effects'; import { StoreModule } from '@ngrx/store'; import { StateConfig, StorageSyncType } from '../../state/config/state-config'; import { StateModule } from '../../state/state.module'; import { ASM_FEATURE } from './asm-state'; import { effects } from './effects/index'; import { metaReducers, reducerProvider, reducerToken } from './reducers/index'; import { provideDefaultConfigFactory } from '../../config/config-providers';export function asmStoreConfigFactory(): StateConfig {const config: StateConfig = {state: {storageSync: {keys: {'asm.asmUi': StorageSyncType.LOCAL_STORAGE,'asm.csagentToken.value.access_token': StorageSyncType.LOCAL_STORAGE,'asm.csagentToken.value.token_type': StorageSyncType.LOCAL_STORAGE,'asm.csagentToken.value.expires_in': StorageSyncType.LOCAL_STORAGE,'asm.csagentToken.value.expiration_time':StorageSyncType.LOCAL_STORAGE,'asm.csagentToken.value.scope': StorageSyncType.LOCAL_STORAGE,'asm.csagentToken.value.userId': StorageSyncType.LOCAL_STORAGE,},},},};return config; } @NgModule({imports: [CommonModule,HttpClientModule,StateModule,StoreModule.forFeature(ASM_FEATURE, reducerToken, { metaReducers }),EffectsModule.forFeature(effects),],providers: [provideDefaultConfigFactory(asmStoreConfigFactory),reducerProvider,], }) export class AsmStoreModule {}

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