Why Delete Method is not working according to Doc?

[Irtiza_Khan]

Hi, I am trying delete according to instruction from DropBox

 client?.files.deleteV2(path: "/test/path/in/Dropbox/account").response { response, error in
            if let response = response {
                print(response)
            } else if let error = error {
                switch error as CallError {
                case .routeError(let boxed, let requestId):
                    print("RouteError[\(requestId)]:")
                    
                    switch boxed.unboxed as Files.DeleteError {
                    case .pathLookup(let lookupError):
                        switch lookupError {
                        case .notFound:
                            print("There is nothing at the given path.")
                        case .notFile:
                            print("We were expecting a file, but the given path refers to something that isn't a file.")
                        case .notFolder:
                            print("We were expecting a folder, but the given path refers to something that isn't a folder.")
                        case .restrictedContent:
                            print("The file cannot be transferred because the content is restricted...")
                        case .malformedPath(let malformedPath):
                            print("Malformed path: \(malformedPath)")
                        case .other:
                            print("Unknown")
                        }
                    case .pathWrite(let writeError):
                        print("WriteError: \(writeError)")
                    // you can handle each `WriteError` case like the `DeleteError` cases above
                    case .other:
                        print("Unknown")
                    }
                case .internalServerError(let code, let message, let requestId): break
                }
            }
        } // End Of client?
        
        DropboxClientsManager.authorizedClient?.files.deleteV2(path: "/test/path/in/Dropbox/account").response { response, error in
            if let response = response {
                print(response)
            } else if let error = error {
                switch error as CallError {
                case .routeError(let boxed, let requestId):
                    print("RouteError[\(requestId)]:")
                    
                    switch boxed.unboxed as Files.DeleteError {
                    case .pathLookup(let lookupError):
                        switch lookupError {
                        case .notFound:
                            print("There is nothing at the given path.")
                        case .notFile:
                            print("We were expecting a file, but the given path refers to something that isn't a file.")
                        case .notFolder:
                            print("We were expecting a folder, but the given path refers to something that isn't a folder.")
                        case .restrictedContent:
                            print("The file cannot be transferred because the content is restricted...")
                        case .malformedPath(let malformedPath):
                            print("Malformed path: \(malformedPath)")
                        case .other:
                            print("Unknown")
                        }
                    case .pathWrite(let writeError):
                        print("WriteError: \(writeError)")
                    // you can handle each `WriteError` case like the `DeleteError` cases above
                    case .other:
                        print("Unknown")
                    }
                case .internalServerError(let code, let message, let requestId): break
                }
            }
        } // End Of DropboxClientsManager.authorizedClient?

But Showing Error message " Tuple pattern has the wrong length for tuple type '(Box<(Files.DeleteError)>, String?, String?, String?)' (aka '(Box<Files.DeleteError>, Optional<String>, Optional<String>, Optional<String>)')"

Also I have a Question.

***What is the differrence between client? and 

DropboxClientsManager.authorizedClient?

N.B. I am using Xcode 8.3.1 and swift 3

[Greg-DB · Accepted solution]

Apologies for the trouble, it looks like the SwiftyDropbox readme is a little out of date. This line:

case .routeError(let boxed, let requestId):

should instead be:

case .routeError(let boxed, let userMessage, let errorSummary, let requestId):

I'll ask the team to update that in the documentation.

`DropboxClientsManager.authorizedClient` is a singleton you can use for convenience for storing the `DropboxClient` object. The `client` variable in the examples also just refers to a `DropboxClient` object. You can use whichever you want.

[Irtiza_Khan]

but when i try to check
if(client != nil){
}
else{
print("Nil")
}
Then it prints NIl in console. Why?

[Greg-DB]

The `client` variable would just be a variable like any other in your app. If the `nil` check is coming back like that, it means it is not currently set. You need to set and manage it in your code. (For that reason, `DropboxClientsManager.authorizedClient` is generally more convenient.)