Retrieving a single item from Firebase database using Angular 5

I have multiple projects to manage:

export class Project {
  $key: string;
  file: File;
  name: string;
  title: string;
  cat: string;
  url: string;
  progress: number;
  createdAt: Date = new Date();

  constructor(file: File) {
    this.file = file;
  }
}

All of these projects are uploaded here:

  uploads: Observable<Project[]>;

  private saveFileData(upload: Project) {
    this.db.list(`profile/${this.auth.userId}/project`).push(upload);
}

When I try to access a specific project:

 uploads: Observable<Project[]>;
getOne(){
  this.uploads = this.db.list(`profile/${this.auth.userId}/project/${this.projectId}`);
}

However, I encounter an error with this.uploads

(Angularfirelist is not assignable to Observable.)

My attempt to resolve the issue was to change it to:

  uploads: AngularFireList<Project[]>;

getOne(){
  this.uploads = this.db.list(`profile/${this.auth.userId}/project/${this.projectId}`);
}

But then, a new error surfaced:

ERROR Error: InvalidPipeArgument: '[object Object]' for pipe 'AsyncPipe'

Any suggestions on how to retrieve that one specific project?

Answer â„–1

To retrieve solely the data, utilize valueChanges(), or for the data's payload, use snapshotChanges():

this.uploads = this.db.list(`profile/${this.auth.userId}/project/${this.projectId}`).valueChanges();

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