How to receive 2 different values from one Subscribe?

Question

Is there any option to get two values from one subscription? The first being all profile data and the second is just the favorite data filtering by name. I want to use fewest number of firebase request as I can. the db structure: profile{ uid{ name, age, favorite{ name, uid, } } } this the component code: ngOnInit() { this.db.getDataObj("/Profile/" + this.uid).subscribe(res =>{ console.log("Profile Result"); console.log(res); }); this.db.getDataObj("/Profile/" + this.uid/favorite).subscribe(res =>{ console.log("Profile Result"); console.log(res); }); this the service code: getDataObj(objpath:string){ this.objRef = this.db.object(objpath); this.obj = this.objRef.valueChanges(); return this.obj; } JavaScript questions and answers, JavaScript questions pdf, JavaScript question bank, JavaScript questions and answers pdf, mcq on JavaScript pdf, JavaScript questions and solutions, JavaScript mcq Test , Interview JavaScript questions, JavaScript Questions for Interview, JavaScript MCQ (Multiple Choice Questions)

Answer 1

That is not possible. One request will always return one response. However, looking at your database structure you should only need one request. this.db.getDataObj("/Profile/" + this.uid).subscribe(res =>{ console.log("Profile Result"); console.log(res); }); The "res" here should contain the complete profile object (including the "favorite" object). If you still want to make this code shorter/cleaner you can look into creating a "zip" observable. More info here.