使用Xcode 10.1,Swift 4.2和Firebase ##
使用以下代码将数据上传到Firebase后,我看不到实时数据库中的数据:
static func createUser(username: String, email: String, password: String, imageData: Data, onSuccess: @escaping () -> Void, onError: @escaping (_ error: String?) -> Void) {
Auth.auth().createUser(withEmail: email, password: password) { (data, error) in
if let err = error {
onError(err.localizedDescription)
return
}
// User erfolgreich erstellt
guard let uid = data?.user.uid else { return }
self.uploadUserData(uid: uid, username: username, email: email, imageData: imageData, onSuccess: onSuccess)
}
}
static func uploadUserData(uid: String, username: String, email: String, imageData: Data, onSuccess: @escaping () -> Void) {
let storageRef = Storage.storage().reference().child("profile_image").child(uid)
storageRef.putData(imageData, metadata: nil) { (metadata, error) in
if error != nil {
return
}
}
storageRef.downloadURL(completion: { (url, error) in
if error != nil {
print(error!.localizedDescription)
return
}
let profilImageURL = url?.absoluteString
let ref = Database.database().reference().child("users").child(uid)
ref.setValue(["username" : username, "email" : email, "profileImageURL": profilImageURL ?? "Kein Bild vorhanden"])
})
onSuccess()
}
firebase中的设置:
应该以正确的方式工作。我已经查看了Firebase文档,但没有找到更多信息。
答案 0 :(得分:1)
该图像是否上传到Cloud Storage?如果可以,但是下载URL没有写入数据库,我猜是因为在生成下载URL之前没有上传数据。由于上载函数是异步的,因此应从闭包中调用downloadURL
函数。
static func uploadUserData(uid: String, username: String, email: String, imageData: Data, onSuccess: @escaping () -> Void) {
let storageRef = Storage.storage().reference().child("profile_image").child(uid)
storageRef.putData(imageData, metadata: nil) { (metadata, error) in
if error != nil {
return
}
storageRef.downloadURL(completion: { (url, error) in
if error != nil {
print(error!.localizedDescription)
return
}
onSuccess()
}
}