# Main URL Format

When a user clicks a resource name (a link) on a custom web page, the URL behind it must have one of following formats:

`https://<server>/userportal/?appinfo=https://<webserver>/<app-name>.js&theme=<theme-name>#/launch`

or

`https://<server>/<theme-name>/?appinfo=https://<webserver>/<app-name>.js#/launch`

where:

* `<server>` is the IP address or FQDN of the RAS Secure Gateway server.
* `<webserver>` is a web server from where information about published resources and authorized users is served.
* `<app-name>.js` is a payload in JSONP format containing user credentials and a published resource information. Note that since payload must contain user credentials, the payload should be generated dynamically for every user and every application, desktop, published resource to which a user has access through the web portal. For testing purposes, you can create a temporary ".js" file with all the required information and save it in a folder on your web server. The payload structure is described in the section that follows this one.
* `<theme-name>` is the name of the Theme that will be used. This parameter is optional if you use the first URL format.

{% hint style="info" %}
**Note:** You can use the `/RASHTML5Gateway` suffix instead of `/userportal`, but this is not recommended.
{% endhint %}