IOS/Swift Retrieve file field after login throws error code: 151 (version: 1.12)

[leonardojobim]

The code below works well if the user had signed up and didn't log out yet.
But if the user logs out and then logs in again, it throws the following error: [Error]: Can't download a file that doesn't exist on the server or locally. (Code: 151, Version: 1.12.0)
Apparently, login function is not retrieving extra file fields properly:

if let user = PFUser.currentUser() {
  if let photo = user["profilePhoto"] as? PFFile {
    photo.getDataInBackgroundWithBlock({ (data: NSData?, error: NSError?) -> Void in
      dispatch_async(dispatch_get_main_queue(), {
        if let data = data {
          self.profileImageView.image = UIImage(data: data)
        }
      })
    })
  }
}

[nlutsenko]

Hey @Leo-One, thanks for the report.
Are you seeing this with Parse.com or self-hosted Parse Server?

Is there any chance you can log network response on logout per instructions here - https://github.com/ParsePlatform/Parse-SDK-iOS-OSX/wiki/Network-Debug-Tool

[leonardojobim]

Hi @nlutsenko
I am using self-hosted Parse Server with Heroku and MongoLab add-on.
The same code works well with Parse.com , but I am migrating.

This error does not occur in queries (PFQuery(className: "AnyClass")) or when sign up. Only in login.

I'll try to use the network debug tool.

[nlutsenko]

Thanks. I wonder if there is something missing in Parse-server implementation of login endpoint.
We definitely should be sending full data back, but there might be something missing.

[leonardojobim]

I configured the network debug.
There is no additional log when I try to retrieve an image, just the error already described above.
But I think the information below could be relevant. In the json returned by login, there is no url field in the image attribute. But in the json returned by query and update (PFUser.currentUser().saveInBackgroundWithBlock), this field exists:

From a simple query (PFQuery): there is url field inside "userProfilePhoto" attribute
Response Body : {"results":[{"objectId":"RrL0joXFT7","userProfilePhoto":{"__type":"File","name":"1bef99e98f1c3c9f6167967234233410_file.bin","url":"http://hdsHErzjFq.herokuapp.com/parse/files/NkPxYYYXVl4mXdIQgEz1lu24EeNTT9jnw7QDjuCU/1bef99e98f1c3c9f6167967234233410_file.bin"},

From an update (PFUser.currentUser().saveInBackgroundWithBlock) just after the sign up: there is url field inside "profilePhoto" attribute
Method : Optional("PUT") Headers : Optional(["X-Parse-Installation-Id": "861a8001-d38a-42cd-acf6-8f4077cc6c11", "X-Parse-Session-Token": "r:389e069de3909091938953462947399f", "Content-Type": "application/json; charset=utf-8"]) Request Body : Optional("{\"profilePhoto\":{\"__type\":\"File\",\"url\":\"http:\\/\\/hdsHErzjFq.herokuapp.com\\/parse\\/files\\/NkPxYYYXVl4mXdIQgEz1lu24EeNTT9jnw7QDjuCU\\/76d023fa994633d984a47378d7771cfa_file.bin\",\"name\":\"76d023fa994633d984a47378d7771cfa_file.bin\"}}"))

From Login: no url field inside "profilePhoto" attribute
Response Body : {"objectId":"j1t330lPEd","email":"[email protected]","username":"[email protected]","gender":"male","name":"Ze","installationId":"fd5e35b9-2968-430b-9081-92f27e1739c2","updatedAt":"2016-02-07T01:50:05.910Z","createdAt":"2016-02-07T01:49:30.259Z","profilePhoto":{"__type":"File","name":"1bef99e98f1c3c9f6167967234233410_file.bin"},

[leonardojobim]

It looks that is lacking url property for file fields in the json response of the login function of the iOS/Swift SDK.

[nlutsenko]

Yup, looks like a server bug.
Could you please open an issue on the server repo, since this issue will happen for all the clients.