Struggling with basic Swift logic (Working with constants, variables and loops) - swift

Question

I want to use 2 Strings that I get with those two "loops" from firebase and use them in another "loop" to upload them with a bunch of other Information.
My problem is, that I somehow can't get the values of fullname and pfp that I downloaded, into the upload to firebase.
Any ideas on how to solve this issue?
func sendToFire(){
let combined = "\(userID)" + "\(number)"
let docRef = db.collection("posts").document(combined)
let description = self.textPost.text
let nameRef = db.collection("users").document(userID)
var fullname = ""
var pfp = ""
if fireImage == nil {
nameRef.getDocument { (document, error) in
if let document = document{
fullname = document.get("fullname") as! String
}else{
print("Coulnt get fullname")
}
}
nameRef.getDocument { (document, error) in
if let document = document{
pfp = document.get("profileimage") as! String
}else{
print("Couldn't get profileimage")
}
}
docRef.getDocument { (document, error) in
if let document = document, document.exists {
print("Post ID already taken")
} else {
print("Post Document gets created")
self.db.collection("posts").document(combined).setData([
"description": description!,
"likes": self.likes,
"postType": 0,
"profileImage": pfp,
"time": self.date,
"uid": self.userID,
"username": fullname
]) { err in
if let err = err {
print("Error writing document: \(err)")
} else {
print("Post Document successfully written!")
}
}
}
}
}
}

Answer 1

Add document.exists in the if let
nameRef.getDocument { (document, error) in
if let document = document, document.exists{
fullname = document.get("fullname") as! String
}else{
print("Coulnt get fullname")
}
}
nameRef.getDocument { (document, error) in
if let document = document, document.exists{
pfp = document.get("profileimage") as! String
}else{
print("Couldn't get profileimage")
}
}
Check the actual key names in the response fullname and profileimage.