ff

        let aEntity: AEntity = new AEntity(undefined, Status.FULL);

        // Getting the assigned ID of the above AEntity
        this.aEntityService.create(aEntity).subscribe((aResponse) => {
            aEntity = aResponse.body;

            this.formDataMap.forEach((value: AnswerMgm, key: String) => {
                const question: Question = this.questionsMap.get(Number(key));
                const answer: Answer = value;

                const bEntity: BEntity = new BEntity(aEntity.id, question, answer);

                // persist the bEntity
                this.bEntityService.create(bEntity)
                    .toPromise()
                    .then((response: HttpResponse<BEntity>) => {
                         const bEntityResult: BEntityMgm = response.body;
                         console.log('BEntity response: ' + JSON.stringify(bEntityResult));
                    });
            });
        });