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Cómo leer/recuperar datos de firebase usando el método get()

Tengo una lista de candidatos que quiero leer de firebase, pero no puedo leer cuando uso el método get(). Puedo leer usando snapshotChanges() y valueChanges().

Mi servicio tengo:

 getCandidatesForTest(id: string) { return this.aFireStore.collection("candidateResults", query => query.where("test.id", "==", id)).snapshotChanges(); }

para leer los datos hago:

 this.candidateServ.getCandidatesForTest(this.testId).pipe(untilDestroyed(this)).subscribe ((data) => { this.candidates = data.map(e => { return { id: e.payload.doc['id'], lastname: e.payload.doc.data()['lastname'], firstname: e.payload.doc.data()['firstname'], ... } }) })

Me gustaría leer de esta función:

 getCandidatesForTest(id: string) { return this.aFireStore.collection("candidateResults", query => query.where("test.id", "==", id)).get(); }

Pero no puedo recuperar los valores de la misma.

Cualquier ayuda es muy apreciada.

about 4 years ago · Juan Pablo Isaza
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