how to pre-set column filter in ag-grid

I have an Ionic/Angular app using ag-grid. I would like certain grids to have a filter automatically applied when the grid is loaded - without the user having to do anything.

I tried the following:

onGridReady(params) {
  params.api.sizeColumnsToFit();
  // get filter instance
  var filterComponent = params.api.getFilterInstance("isActive");
  // OR set filter model and update
  filterComponent.setModel({
    type: "greaterThan",
    filter: 0
  });
  filterComponent.onFilterChanged();
}

but it did nothing. Any ideas?

Edit: AgGrid included a onFirstDataRendered callback in version 24.0, as stated in later comments. The original answer below is now only relevant for versions which pre-date this functionality.

onFirstDataRendered(params) {
    var filterComponent = params.api.getFilterInstance("isActive");

    filterComponent.setModel({
        type: "greaterThan",
        filter: 0
    });

    filterComponent.onFilterChanged();
}

Reproduced your problem in a couple of their example older plunks, seemed to be alleviated by adding a small delay. Just venturing a guess that maybe the DOM isn't completely ready yet, although the grid is.

Pre-onFirstDataRendered versions:

onGridReady(params) {
params.api.sizeColumnsToFit();

setTimeout(() => {
    var filterComponent = params.api.getFilterInstance("isActive");
    filterComponent.setModel({
      type: "greaterThan",
      filter: 0
    });
    filterComponent.onFilterChanged();
    },150)
}