Develop a simple project for google drive and dropbox management

Hi everyone, I need an OS X programmer to implement the following interface using the dropbox core api and the google drive api for file management @interface Node : NSObject { NSString *path; NSString *name; BOOL isDirectory; } @end @interface FileSystem : NSObject //Starts at /, of Nodes -(NSArray *) listContentsOfDirectory:(NSString *) path; -(BOOL) uploadFile:(NSString *) localPath toPath:(NSString *) path; -(BOOL) downloadFileFromPath:(NSString *) path toPath:(NSString *) localPath; -(BOOL) setup; -(BOOL) deleteFileAtPath:(NSString *) path; -(BOOL) createDirectoryAtPath:(NSString *) path; -(BOOL) movePath:(NSString *) source toPath:(NSString *) dest; @end The result of this project will be an Xcode project with 2 classes implementing this interface and providing the functionality in DropBox and Google Drive. Further methods can be included if necessary (e.g. for dropbox authentication). Future work can be expected if this project is successful. Milestone will be prepaid and the money released after the code is reviewed and tested