public SubscriptionResponse deleteAllSubscription() throws InstagramException {
final OAuthRequest request = prepareOAuthRequest(Verbs.DELETE);
request.addQuerystringParameter(Constants.SUBSCRIPTION_TYPE, "all");
try {
final Response response = request.send();
return getSubscriptionResponse(response.getBody());
} catch (IOException e) {
throw new InstagramException("Failed to delete all subscriptions", e);
}
}