I have an iOS app that has a local database. I'd like to back that up for users who choose to sign in with Google. The web (https://developers.google.com/drive/web/appdata) and android (https://developers.google.com/drive/android/appfolder) have guides on how to do this, but I can't find a similar one for iOS. Does it exist?
If you already have code to upload a file to the user's Drive account, it is very easy to switch to uploading into the private app folder instead. When making the Files.insert call, the file will be added to all of the folders listed in the parents[] array. (If this array is empty, by default the file is added to the root folder.) To upload the file into the private app data folder, simply set the parents[] array to appfolder. You have to do this at the same time as uploading the file, because once it has been uploaded the file can't be moved between the user's drive and your app's private data folder.
(Note: you may need to use the regular REST API to do this, because Google's Drive API for iOS docs do not show any methods for actually uploading a new file to Drive.)
Check this how this is working for me in swift 4.2 and above:
let googleDrive: GTLRDrive_File = GTLRDrive_File()
googleDrive.name = "name.json"
googleDrive.parents = ["appDataFolder"]
let uploadParam: GTLRUploadParameters = GTLRUploadParameters(data: data, mimeType: "application/json")
uploadParameters.shouldUploadWithSingleRequest = true;
let queryDrive: GTLRDriveQuery_FilesCreate = GTLRDriveQuery_FilesCreate.query(withObject: metadata, uploadParameters: uploadParam)
queryDrive.fields = "id"
self.service.executeQuery(queryDrive) { (result, response, error) in
if let file = response as? GTLRDrive_File {
if (error == nil) {
print(file.identifier)
/// your code here
} else {
// handle error part
}
}
else {
//handle exception part
}
}
"data" the json data you get this like below
let param = [["key": "value"], ["key": "value"], ["key": "value"]]
let data = try JSONSerialization.data(withJSONObject: param, options: .prettyPrinted)
Related
I am trying to build an app where I am able to access(read/write) windows/mac shared folders in my local network with swift.
Is there any possible way to do that with swift?
There is an App in the App Store called "FileExplorer" https://apps.apple.com/de/app/fe-file-explorer-file-manager/id510282524 where you can access these shared folders, but I do not know how they programmed this and with which language.
I also tried to access my shared folders via this App and yes it worked I can see my shared folders on my Phone.
But there needs to be a way to do it with swift...
I already tried different things(code bellow).
In the code bellow I tried to access the shared folder of my second mac and write the Text "Write this text to the fileURL as text in iOS using Swift" into the file named "Test.txt" and after that I want to read the same file again.
#IBAction func Button(_ sender: UIButton)
{
var uc = URLComponents()
uc.scheme = "smb"
uc.user = "user"
uc.password = "password"
uc.host = "ip-adress"
uc.path = "document-directory"
// Save data to file
let fileName = "Test"
let url = uc.url
//let DocumentDirURL = URL(fileURLWithPath: "/Users/f/d/t/App/Assets/Apps/TestApp")
let DocumentDirURL = try! URL(resolvingAliasFileAt: url!)
let fileURL = DocumentDirURL.appendingPathComponent(fileName).appendingPathExtension("txt")
print("FilePath: \(fileURL.path)")
let writeString = "Write this text to the fileURL as text in iOS using Swift"
do {
// Write to the file
try writeString.write(to: fileURL, atomically: true, encoding: String.Encoding.utf8)
} catch let error as NSError {
print("Failed writing to URL: \(fileURL), Error: " + error.localizedDescription)
}
var fullString: String = "" // Used to store the file contents
do {
// Read the file contents
fullString = try String(contentsOf: fileURL, encoding: .utf8)
} catch let error as NSError {
print("Failed reading from URL: \(fileURL), Error: " + error.localizedDescription)
}
print("File Text: \(readString)")
}
If I run the code as shown, he always gives me the error
"smb scheme is not supported" and then some additional errors that he can not write/read the file because he can not access it.
When I change the code and only search on the device I am programming on and run the simulator to search for this file everything works fine. So I have problems with "smb".
Thank you for every helpful answer.
you can use amsmb2 library to do this
you can extend the template class provided to connect to download files, write files, list directories -> on an smb share
everything is asynchronous from memory, with the librarys calls including hooks for progress updates on the ui main thread etc
i believe the amsmb2 library function your after might be uploadItem
iOS 13 includes SMB (server message block protocol) support
https://9to5mac.com/2019/06/17/ios-13-beta-2-enables-smb-server-connectivity-in-the-files-app/
I have connected my App with the Firebase Storage where my 19ea PDF files exists.
I would like to download those files and save them locally for future use.
Those PDF files will be used inside UIWebviews but they may need to be updated in time. Therefore, I have configured version control system with Firebase Database, so I will be able to push the newer versions when I update the files in the storage.
So, how I can save those files locally? (to a folder like: user/myapp/Documents/PDF etc?)
Also, how I can check if that folder contains any documents and how to delete them before downloading new files?
Here is what I have got so far.
I appreciate all the help.
// Firebase Storage Connection
static var refStorage:FIRStorageReference?
static var dataPDF = [NSData]()
func newDataDownload(){
// Compare Current Data Version with Online Data Version
if myFirebaseData.localDataVersion < myFirebaseData.onlineDataVersion {
// Set Firebase Storage Reference
myFirebaseData.refStorage = FIRStorage.storage().reference()
for i in 1...myFirebaseData.onlineTotalPDFCount {
// Create a reference to the file you want to download
let pulledPDF = FIRStorage.storage().reference().child("/PDF/\(i).pdf")
// Create local filesystem URL
let localURL = URL(string: "myApp/Documents/PDF/\(i)")!
pulledPDF.data(withMaxSize: myFirebaseData.maxPDFdownloadSize, completion: { (downPDF, err) in
if err == nil {
// Accessed the data
myFirebaseData.dataPDF.append(downPDF! as NSData)
print(myFirebaseData.dataPDF)
} else {
// If there is an error print it
print(err.debugDescription)
}
})
}
}
// If Data is successfully downloaded update Local Data Version
myFirebaseData.localDataVersion = myFirebaseData.onlineDataVersion
Use storageRef.write(toFile: completion:) (docs), like:
// Create a reference to the file you want to download
let pdfRef = storageRef.child("files/file.pdf")
// Create local filesystem URL
let localURL = URL(string: "path/to/local/file.pdf")!
// Download to the local filesystem
let downloadTask = pdfRef.write(toFile: localURL) { url, error in
if let error = error {
// Uh-oh, an error occurred!
} else {
// Local file URL for "path/to/local/file.pdf" is returned
}
}
Note that you can only write to /tmp and /Documents due to app sandboxing requirements (see Downloading Firebase Storage Files Device Issue for an example of how this fails otherwise).
I'm using Firebase Storage to store images in FB, I'm saving download URL in Realtime DB and to retrieve some photos from the storage, I'm using this code:
let storage = FIRStorage.storage()
imageRefInDB.observeEventType(.Value, withBlock: { (snapshot) in
// Get download URL from snapshot
let downloadURL = snapshot.value as! String
// Create a storage reference from the URL
let storageRef = storage.referenceForURL(downloadURL)
storageRef.dataWithMaxSize(1 * 1024 * 1024) { (data, error) -> Void in
if (error != nil) {
print(error.debugDescription)
} else {
let downloadedImage = UIImage(data: data!)
}
}
})
My problem is I wanna use some of my photo that are inside another Firebase project. For example, the download URLs will be:
https://firebasestorage.googleapis.com/v0/b/PROJECT1.appspot.com/o/someMedia&token
When in my current project, the bucket is different like :
https://firebasestorage.googleapis.com/v0/b/PROJECT2.appspot.com/o/someMedia&Token
When I try to using the PROJECT1 files in my current PROJECT2, I'm getting the following error:
reason: 'Provided bucket: PROJECT1.appspot.com does not match bucket specified in FIRApp configuration: PROJECT2.appspot.com
Is there a way to enable downloading theses files from other projects like a setting in Firebase without retrieving them with regular URL downloads?
Thanks for your help!
I tried that once and it lead to an unhappy time. In my case I had two different buckets for my images, so I had to find an alternate solution.
If you have only a single bucket, you can try configuring that bucket in your FIRApp:
let firOptions = FIROptions(googleAppID: googleAppID, bundleID: bundleID, GCMSenderID: GCMSenderID, APIKey: nil, clientID: nil, trackingID: nil, androidClientID: nil, databaseURL: databaseURL, storageBucket: storageBucket, deepLinkURLScheme: nil)
FIRApp.configureWithName("anotherClient", options: options)
let app = FIRApp(named: "anotherClient")
let storageRef = FIRStorage.storage(app: app!).reference()
Taken from this answer, so you may need to modify it to suit your needs
With that app, you can then use the Firebase Storage API as you're already doing to download the image data.
If you have multiple buckets (as I had), you either have to configure multiple apps or (as I did) handle downloading the image from the downloadURL yourself (without using the Firebase Storage API):
dispatch_async(dispatch_get_global_queue(QOS_CLASS_USER_INITIATED, 0)) {
let data = NSData(contentsOfURL: downloadURL) //make sure your image in this url does exist, otherwise unwrap in a if let check
dispatch_async(dispatch_get_main_queue(), {
let downloadedImage = UIImage(data: data!)
});
}
I'm new to Realm and iOS. I'm working on an app(written in Swift) that has a feature for the user to search for golf courses. I have a JSON file with roughly 18K courses in it. So I wanted to use Realm so I can quickly search through these courses in my app without it slowing down the user experience. I was able to get my JSON file written to the Realm Browser and can retrieve and search through the items, which has made it a LOT faster.
The problem I'm is I have the code in my App Delegate because I wanted to send the JSON items to my Realm Browser upon the app's launch. But if the app is started again then it writes the JSON file again, which creates duplicate golf courses in my Realm Browser.
Any suggestions on how I should do this so I can write the JSON file to the browser without getting duplicates each time the app is launched?
Thanks!
My code for writing my JSON file to my Realm Browser:
let dataManager = DataManager.getGolfCoursesFromFileWithSuccess { (data) -> Void in
let json = JSON(data: data)
if let courseArray = json.array {
for course in courseArray {
let golfCourseName: String? = course["biz_name"].string
let city: String? = course["e_city"].string
let state: String? = course["e_state"].string
if golfCourseName != nil {
let course = Course()
course.name = golfCourseName!
course.city = city!
course.state = state!
let realm = try! Realm()
try! realm.write {
realm.add(course)
}
}
}
}
}
Just check to see if the data is stored already.
I.e.
if try! Realm().objects(GolfCourse).count == 0 {
// your loading code here.
}
I figured it out. Because this was a data set that I wanted the user to have when they initially start using the app I learned how to bundle a Realm file with this data and put the file directly in my Xcode project. I then configured this file using the method:
"NSBundle.mainBundle().pathForResource("MyBundledData", ofType:"realm")"
I am using the AWS iOS SDK v2, and Swift 1.2.
I am storing my app's app.json file on S3 and want to check it at launch to see if it's been updated since the last run. According to research, simply doing a HEAD request on the object should return the "Last-Modified" attribute which can then be compared to the previous.
The problem is that doing a HEAD request on an Object doesn't really seem to be well documented. I've got the following:
var metaDataRequest = AWSS3HeadObjectRequest()
metaDataRequest.bucket = S3BucketName
metaDataRequest.key = S3AppJSONKey
This seems like a decent start, however I cannot find a way to execute the request. The AWSS3TransferManager has a download() method, but the method requires an AWSS3TransferManagerDownloadRequest type, which an AWSS3HeadObjectRequest cannot be cast as.
Not sure where to go from here, short of just doing the request outside of the SDK. I did, however, want to leverage as much of the SDK as possible, so if this is possible I would love to know how.
You need to use AWSS3 (instead of AWSS3TransferManager) to call - headObject:.
You need to call headobject method of AWSS3
var request = AWSS3HeadObjectRequest()
request.bucket = "flkasdhflhad"
request.key = "hfsdahfjkhadjkshf"
request.ifModifiedSince = NSDate()
var s3 = AWSS3.defaultS3()
s3.headObject(request) { ( output1 : AWSS3HeadObjectOutput?, error : NSError?) -> Void in
print( output1?.description())
}
if your object is modified from specified date then it will return u the object otherwise it will return u the status code 304.
You can use following Swift 2.2 method to check if file exist or not
func checkIfFileExist() {
let s3 = AWSS3.defaultS3()
let headObjectsRequest = AWSS3HeadObjectRequest()
headObjectsRequest.bucket = "YourBucketName" //Don't add "/" at end of your bucket Name
headObjectsRequest.key = "YourFileNameYouWantToCheckFor" //Don't add "/" in start of file name
s3.headObject(headObjectsRequest).continueWithBlock { (task) -> AnyObject! in
if let error = task.error {
print("Error to find file: \(error)")
} else {
print("fileExist")
}
}
}
Note: Example to set bucket and key
suppose you have bucket named "ABC" and than folder named "XYZ" and than inside "XYZ" you have file "abc123"
than write
headObjectsRequest.bucket = "ABC/XYZ"
and
headObjectsRequest.key = "abc123"
and if you want to check for the entire folder
than use
headObjectsRequest.bucket = "ABC/XYZ"
and
headObjectsRequest.key = ""
Thanks Mohsin