oauth2

type Config struct {
	// HTTP client used to communicate with the authorization
	// server. If nil, DefaultClient is used.
	Client *http.Client

	// ClientID is the identifier issued to the application
	// during the registration process.
	ClientID string

	// ClientSecret is the secret issued to the application
	// during the registration process.
	ClientSecret string

	// Scope is the scope of the access request.
	Scope []string

	// RedirectURL is used by the authorization server to
	// return the authorization credentials to the client.
	RedirectURL string

	// AccessTokenURL is used by the client to exchange an
	// authorization grant for an access token.
	AccessTokenURL string

	// AuthorizationURL is used by the client to obtain
	// authorization from the resource owner.
	AuthorizationURL string

	// BasicAuthOff instructs the client to disable use of
	// the authorization header and provide the client_id
	// and client_secret in the formdata.
	BasicAuthOff bool

	// Logger is used to log errors. If nil the provider
	// use the default noop logger.
	Logger logger.Logger

	// Dumper is used to dump the http.Request and
	// http.Response for debug purposes.
	Dumper logger.Dumper
}

type Error struct {
	Code string `json:"error"`
	Desc string `json:"error_description"`
}