Dropbox API mvc 5

When you register an app, you get an app key and secret that identify your app. You additionally can "Generate" an access token, which enables access to your own account. While the app key (and sometimes the secret) may be used in your app, you generally shouldn't embed your own access token in your app itself. You should instead implement the OAuth app authorization flow in your app so that arbitrary users can connect to it.

1) I can help with questions about the Dropbox API, but that doesn't include general questions about project structure like this, so I'm afraid I can't offer much insight on this one.

2) For connecting to the Dropbox API from .NET, we recommend using the official Dropbox API v2 .NET SDK. There's documentation and examples there to help you get started. For instance, here's an example that shows how to use the OAuth flow via DropboxOAuth2Helper, and download a file via DownloadAsync.

3) I don't know what you're referring to by "RestDropBoxApi". That doesn't sound like an official Dropbox resource. (The Dropbox API isn't a "REST" API.) As mentioned above, we recommend using the official Dropbox API v2 .NET SDK.

4) We don't have videos, but you can find working samples apps for the .NET SDK here.