How can I write in Google Sheets my Firebase data? - json

Question

I have a database in Firebase, and I want to get the data from there and put them in a Google SpreadSheet.
function getData() {
var ss = SpreadsheetApp.getActiveSpreadsheet();
var sheet = ss.getSheetByName("Database");
var data = getFirebaseData('contacts');
var [rows, columns] = [sheet.getLastRow(), sheet.getLastColumn()];
var range = sheet.getRange(1,1,1,1);
Logger.log(data)
range.setValue(data)
}
function getFirebaseData(data){
var firebaseUrl = "https://XXXXX.firebaseio.com/";
var secret = 'XXXXXXXX';
var base = FirebaseApp.getDatabaseByUrl(firebaseUrl, secret);
var result = base.getData('contacts');
for(var i in data) {
Logger.log(data[i].eMail + ' ' + data[i].title);
return result;
}
}
and here the image:
No data is shown, and I cannot understand why

Answer 1

Your problem should be solved by completing several steps:
In your getFirebaseData() function, move the return statement outside of the loop;
Instead of looping over data, loop over result (currently, you iterate over each property of the "contacts" String);
Optionally, add checks for getData() returning null or invalid firebaseUrl (in the last case, getData() will cause an error, use try...catch to account for that);
Change base.getData('contacts') to base.getData(data) (isn't it
the reason you pass data to the function?);