Odtnhj

I need to add to my database a list of 3 students to 1 teacher (and assume it doesn't exist yet). Also should return dictionary to the client. I'm using cloud functions. Here is my idea, my app is frozen when I run it.

exports.addNewStudents = functions.https.onCall((data, context) => {
const totalStudent = data.total; //"3"
const teacher = data.teacher //"Robert"
var studentListToReturn = new Dictionary<string, object>(); 

for (int i=0; i<totalStudent,i++ )
{ // 'i' is going to be the student's ID and I use it in the path:
return admin.database().ref('studentsTable/teacher/'+i).push(

 date: Date();,
 class: "Highschool",
 ).then(() => 
 studentListToReturn[i]=i ;
 )

 return studentListToReturn;

It should look like this on my DB:

• 
  

  studentsTable

  
  
  
  • 
    

    Robert

    
    
    
    • 0 date: 11/13/2018 , class:"Highschool"
    
    
    • 1 date: 11/13/2018 , class:"Highschool"
    
    
    • 2 date: 11/13/2018 , class:"Highschool"
    
    
  
  

I'm new to cloud functions (and js) can you please help?

I have edited the code and made use of async await to make it more readable. There were a lot of JS syntax issues. I would suggest using the typescript firebase functions template and use visual studio code as an editor which will give you the IntelliSense. Also you would need to add in an auth check at the top to ensure only certain people can call the function.

exports.addNewStudents = functions.https.onCall(async (data, context) => 
 // Need to add in an auth check to make sure they have permission to do the below

 const totalStudent = data.total; //"3"
 const teacher = data.teacher //"Robert"
 const studentListToReturn: Array<any> = ;

 for (let i = 0; i < totalStudent; i++ ) // 'i' is going to be the student's ID and I use it in the path:
 const student: any = 
 studentId: i,
 date: Date(),
 class: "Highschool"
 
 await admin.database().ref(`studentsTable/$teacher/$i`).set(student)
 studentListToReturn.push(student);
 
 return studentListToReturn;
);