How to retrieve key once you push it? Firebase AngularFire

Question

Currently in my project I am pushing the object to firebase in a specific ref:

this.CoursesList = this.mydb.database.ref('/courses/' + this.CourseCategoryForm);
this.CoursesList.push(this.course);
this.Reference();

But I want to push it somewhere else at the same time. I read that it was not possible to multipush in Firebase so I wrote the function Reference that would push the course depending on its status.

Reference(){
    if(this.CourseStatusDecision == 0){
        this.CoursesList = this.mydb.database.ref('/availableCourses/' + this.CourseCategoryForm);
    }else{
        this.CoursesList = this.mydb.database.ref('/currentSemester/');
    }
    this.CoursesList.set();
}

My question is I don't want to push the entire object again in another ref (and it usually pushes with a different key, is that because .push() itself creates a key automatically?), I just want the key of the course I just pushed and set it in the other reference, is that possible? And how? Thank you.

Possible duplicate of [Firebase: Can I combine a push with a multi-location update?](https://stackoverflow.com/questions/36774143/firebase-can-i-combine-a-push-with-a-multi-location-update) — André Kool, Mar 13 '18 at 13:09

score 3 · Accepted Answer · answered Mar 13 '18 at 15:23

Angularfire will return a reference with promise. Try

this.CoursesList = this.mydb.database.ref('/courses/' + this.CourseCategoryForm);
this.CoursesList.push(this.course).then(ref=>{
    console.log(ref.key);
    //pass the key to the function
    this.Reference(ref.key);
}

score 0 · Answer 2 · answered Mar 13 '18 at 12:29

0

you can get using .key() function

var dirChatRef = firebaseRef.url.child('directChat').push(chatObj);

Logger.info("New User direct chat Id : " + dirChatRef.key());

answered Mar 13 '18 at 12:29

rijin

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How to retrieve key once you push it? Firebase AngularFire

2 Answers2