Firebase loads the file, getting an extra line in the file name

Question

I used a sample Firebase friendly chat when uploading an image. Getting a response with an optional string. what is missing

Optional(FIRStorageMetadata 0x7fc84aced790: { bucket = "abc.appspot.com"; contentEncoding = identity; contentType = "image/jpeg"; downloadTokens = "abctoken"; generation = 1231231; metageneration = 1; name = "Optional(\"S5CKnKUykANdxSvZ3wujpMXHTvg1\")/494509700277/asset.JPG"; timeCreated = "2016-09-02T11:49:00.114Z"; updated = "2016-09-02T11:49:00.114Z"; }) 

My code is:

  let filePath = "(FIRAuth.auth()!.currentUser!.uid)/(Int(NSDate.time‌​IntervalSinceReferen‌​ceDate() * 1000))/(referenceUrl.lastPathComponent!)" 

was written with an extra value (?) in the sample, so I convert it (!)

Answer 1

In fast mode, you must force the value to expand to avoid this (but make sure it is not zero).

"\(optionalValue!)"

Or expand it in the standard way

 if let value = optionalValue { someFIRMethod("\(value)") }