Furnish an item for a particular service

I am currently attempting to utilize a service created by another individual (github).

This particular service requires a configuration to be passed to it. As stated in the repository:

To configure Neo4jSettings in your bootstrap:

provide('Neo4jSettings', {useValue: {
    endpoint: 'http://localhost:7474',
    username: 'neo4j',
    password: 'neo4j42'
}})

To be honest, I am unsure of how to proceed with this information as injecting settings into a service is unfamiliar territory based on the tutorials I have followed. My attempts at finding a solution through Google were not very fruitful.

Thus far, I have added the service to my module home.module.ts:

@NgModule({
  imports: [CommonModule],
  declarations: [HomeComponent],
  exports: [HomeComponent],
  providers: [Neo4jService] // Included here
})
export class HomeModule {}

And in my component, home.component.ts:

@Component({
  moduleId: module.id,
  selector: 'vs-home',
  providers: [Neo4jService], // also added here
  templateUrl: 'home.component.html'
})

export class HomeComponent implements OnInit {
    constructor(private Neo4jService: Neo4jService) {} // and here as well
}

As expected, when running my application, I encounter the following error:

No provider for Neo4jSettings!

My query revolves around how to provide an object to a service? Specifically, the Neo4jSettings.

Answer №1

Make sure to include Neo4jSettings in your module providers section, like so:

@NgModule({
  imports: [CommonModule],
  declarations: [HomeComponent],
  exports: [HomeComponent],
  providers: [
      Neo4jService,
      {
        provide: 'Neo4jSettings', useValue: {
            endpoint: 'http://localhost:7474',
            username: 'neo4j',
            password: 'neo4j42'
        }
    }
  ]
})

export class HomeModule {}

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