setData method
Adds or replaces data in a specified document within a collection.
The collectionName specifies the collection in which to add the document,
and docName specifies the document name. The data is the map containing
the data to be added. Prints the outcome of the operation.
Implementation
Future<void> setData(
String collectionName, String docName, Map<String, dynamic> data) async {
return await obj
.collection(collectionName)
.doc(docName)
.set(data)
.then((value) => print("Data Added"))
.catchError((error) => print("Failed to add Data: $error"));
}