使用 SwiftyDropbox 庫處理每個錯誤案例，邀請成員加入共享資料夾

let toInvite = [Sharing.AddMember(member: Sharing.MemberSelector.Email("<EMAIL_ADDRESS_TO_INVITE>"))]

Dropbox.authorizedClient!.sharing.addFolderMember(sharedFolderId: "<SHARED_FOLDER_ID>", members: toInvite).response { response, error in

    if (response != nil) {
        print("Invited member.")
    } else if let callError = error {
        switch callError as CallError {
        case .BadInputError(let message, let requestId):
            print("BadInputError[\(requestId)]: \(message)")
        case .HTTPError(let code, let message, let requestId):
            print("HTTPError[\(requestId)]: \(code): \(message)")
        case .InternalServerError(let code, let message, let requestId):
            print("InternalServerError[\(requestId)]: \(code): \(message)")
        case .OSError(let err):
            print("OSError: \(err)")
        case .RateLimitError:
            print("RateLimitError")
        case .RouteError(let boxed, let requestId):
            print("RouteError[\(requestId)]:")
            switch boxed.unboxed as Sharing.AddFolderMemberError {
            case .AccessError(let sharedFolderAccessError):
                    print("AccessError")
                    switch sharedFolderAccessError {
                    case .EmailUnverified:
                        print("EmailUnverified")
                    case .InvalidId:
                        print("InvalidId")
                    case .NoPermission:
                        print("NoPermission")
                    case .NotAMember:
                        print("NotAMember")
                    case .TeamFolder:
                        print("TeamFolder")
                    case .Unmounted:
                        print("Unmounted")
                    case .Other:
                        print("Other")
                }
            case .BadMember(let addMemberSelectorError):
                switch addMemberSelectorError {
                case .GroupDeleted:
                    print("GroupDeleted")
                case .GroupNotOnTeam:
                    print("GroupNotOnTeam")
                case .InvalidDropboxId(let invalidDropboxId):
                    print("InvalidDropboxId: \(invalidDropboxId)")
                case .InvalidEmail(let invalidEmail):
                    print("InvalidEmail: \(invalidEmail)")
                case .UnverifiedDropboxId(let unverifiedDropboxId):
                    print("UnverifiedDropboxId: \(unverifiedDropboxId)")
                case .Other:
                    print("Other")
                }
            case .CantShareOutsideTeam:
                print("CantShareOutsideTeam")
            case .EmailUnverified:
                print("EmailUnverified")
            case .InsufficientPlan:
                print("InsufficientPlan")
            case .NoPermission:
                print("NoPermission")
            case .RateLimit:
                print("RateLimit")
            case .TooManyMembers(let limit):
                print("TooManyMembers: \(limit)")
            case .TooManyPendingInvites(let limit):
                print("TooManyPendingInvites: \(limit)")
            case .Other:
                print("Other")
            }
        }
    }

}

<SHARED_FOLDER_ID> 應該用共享資料夾 ID 替換，例如，由 sharing.shareFolder 或 sharing.listFolders 返回。

<EMAIL_ADDRESS_TO_INVITE> 應該替換為要邀請的使用者的電子郵件地址。此外，成員是一個陣列，可以包含多個使用者。