WebUI Resources

This section describes the various application specific resources (ASR).

Adding the resources folder

In order to use any of the following listed features, you will need to create a new folder called resources (case sensitive), located in:

<.aimms Root folder> > MainProject > WebUI > resources.

This folder will be loaded each time the WebUI will start, or at every reload (F5) of your WebUI browser page.



Application-specific images should be stored in the resources/images subfolder. This folder is not created by default, so you need to create it yourself the very first time that you need it.


Application-specific JavaScript files (e.g. widget [addons] or Unit Support files should be stored in the resources/javascript subfolder.


It is possible to (re)style your web application by providing custom Cascading Style Sheets (CSS). Application-specific CSS files should be stored in the resources/css subfolder of the WebUI subfolder of your project folder.

For more info on CSS in general, see this Wikipedia article.

Load ordering

By default, resources are loaded in alphabetical order. You can influence this loading order by putting a package.json file in the folder alongside the resources to be loaded and specify a specific loading order in it.

An example package.json could be:

   "name": "my-application-specific-resource",
   "version": "0.0.1",
   "config": {
     "aimms:asr": {
       "files": [


  • Your project can have multiple package.json files.
  • All resources loaded explicitly by a package.json file will no longer be loaded through alphabetical order.
  • The loading order of the same file specified in multiple package.json files is undefined and is best avoided.

Last Updated: February, 2020