example mike node

foo.js

var i = 0;

function dosomething() {
  http.get('/foo', function(res) {
    // whatever you want
    
    i += 20;
    setTimeout(dosomething, 5 * 1000);
  });
}

dosomething()

var i = 0;
var increment = 20;
var numposts;

function dosomething() {
  http.get('/foo?offset=' + i, function(res) {
    // whatever you want

    i += increment;
    setTimeout(dosomething, 5 * 1000);
  });
}

blog.info(function(...) {
  numposts = blog.info.numposts;
  dosomething()
}