# Steem Developer Portal

Subscription examples

    steem.api.setSubscribeCallback(callback, clearFilter, function(err, result) {
      console.log(err, result);
    });

    steem.api.setPendingTransactionCallback(cb, function(err, result) {
      console.log(err, result);
    });

    steem.api.setBlockAppliedCallback(cb, function(err, result) {
      console.log(err, result);
    });

    steem.api.cancelAllSubscriptions(function(err, result) {
      console.log(err, result);
    });