All Languages >> TypeScript >> how to update firebase document field angular

“how to update firebase document field angular” Code Answer

how to update firebase document field angular

typescript by Cherry berry on Dec 15 2020 Comment

updateDoc(_id: string, _value: string) {
  let doc = this.afs.collection('options', ref => ref.where('id', '==', _id));
  doc.snapshotChanges().pipe(
    map(actions => actions.map(a => {                                                      
      const data = a.payload.doc.data();
      const id = a.payload.doc.id;
      return { id, ...data };
    }))).subscribe((_doc: any) => {
     let id = _doc[0].payload.doc.id; //first result of query [0]
     this.afs.doc(`options/${id}`).update({rating: _value});
    })
}

Source: stackoverflow.com

Add a Grepper Answer