With this approach, you make a POST Request with a base64 encoded string (consists of ClientId + ClientSecret). You will directly get the token (Without a local HTTP Server), but it will expire and can't be refreshed.
If you want to use it securely, you would need to do it all server-side.
**NOTE:** You will only be able to query non-user-related information e.g search for a Track.
More info: [here](https://developer.spotify.com/documentation/general/guides/authorization-guide/#client-credentials-flow)
```csharp
CredentialsAuth auth = new CredentialsAuth(_clientId, _secretId);