how to store image upload based on user id - ios

Question

func uploadImage(){
let storage = Storage.storage()
let storageRef = storage.reference()
let uploadData = self.imageView.image!.jpegData(compressionQuality: 0.75)
let imagesRef = storageRef.child("images/myImage.jpg") //not sure how is it done
let uploadTask = imagesRef.putData(uploadData!, metadata: nil) { (metadata, error) in
guard let metadata = metadata else {
return
}
let size = metadata.size
imagesRef.downloadURL { (url, error) in
guard let downloadURL = url else {
return
}
}
}
}
func retrieveData(){
let userID = Auth.auth().currentUser?.uid
ref.child("users").child(userID!).observeSingleEvent(of: .value, with: { (snapshot) in
let userData = snapshot.value as? NSDictionary
print("Welcome back,", userData?["username"])
}) { (error) in
print(error.localizedDescription)
}
}
Hi, I'm looking for a way for user to upload image onto firebase based on their user id. Can anyone suggest how this can be achieved? Thanks in advance.

Answer 1

You can do something like this:
func sendMessageWithProperties(properties: [String: Any]) {
let ref = Database.database().reference().child("messages")
let childRef = ref.childByAutoId()
let toId = self.user?.id
let fromId = Auth.auth().currentUser?.uid
let timestamp: Int = Int(NSDate().timeIntervalSince1970)
var values: [String: Any] = ["toId": toId!,
"fromId": fromId!,
"timestamp": timestamp]
// To append other properties into values
properties.forEach({values[$0] = $1})
childRef.updateChildValues(values) { (error, ref) in
if error != nil {
print(error!)
return
}
let userMessageRef = Database.database().reference().child("user-messages").child(fromId!).child(toId!)
let messageId = childRef.key
userMessageRef.updateChildValues([messageId: 1])
let receiverMessageRef = Database.database().reference().child("user-messages").child(toId!).child(fromId!)
receiverMessageRef.updateChildValues([messageId: 1])
}
}