//This method retruns the user selected question at the time of the registration
public async Task <string> getUserQuestion(string email)
{
string security_question = "";
try
{
Boolean connectionResult = connectToFirebase();
if (connectionResult)
{
DocumentReference docRef1 = db.Collection("User").Document(email);
DocumentSnapshot docSnap1 = await docRef1.GetSnapshotAsync();
User userObj = docSnap1.ConvertTo <User>();
DocumentReference docRef2 = db.Collection("Questions").Document(userObj.questionSelected.ToString());
DocumentSnapshot docSnap2 = await docRef2.GetSnapshotAsync();
DBQuestions question = docSnap2.ConvertTo <DBQuestions>();
security_question = question.question;
}
return(security_question);
}
catch (Exception ex)
{
//catch the exception and throw the error on the client
CustomException customException = new CustomException();
customException.errorTitleName = ex.Message;
customException.errorMessageToUser = "******";
throw new FaultException <CustomException>(customException);
}
}
//This method gets the security question from the Firestore database
public async Task <string[]> getQuestions()
{
string[] questions = null; //declare the array of string to return to the user
//starting of try catch block
try
{
//Connection to the database
Boolean connectionResult = connectToFirebase();
//Connection is successfull
if (connectionResult)
{
//create the query to get the questions
Query queryRef = db.Collection("Questions");
///get the snapshots for getting the question
QuerySnapshot snaps = await queryRef.GetSnapshotAsync();
//increment variable
int cntQues = 0;
foreach (DocumentSnapshot snap in snaps)
{
cntQues++;//increment the variable
}//end of foreach loop
questions = new string[cntQues];
int i = 0;
foreach (DocumentSnapshot snap in snaps)
{
//get the question from each document snapshot
DBQuestions questionObj = snap.ConvertTo <DBQuestions>();
questions[i] = questionObj.question;
i++;
} //end of foreach loop
} //end of IF connection result
} //end of try block
catch (Exception ex)
{
CustomException customException = new CustomException();
customException.errorTitleName = ex.Message;
customException.errorMessageToUser = "******";
throw new FaultException <CustomException>(customException);
}//end of catch block
//return the question to the client
return(questions);
}
