The HTML pages generated by the applications usually contain dynamic elements, that is to say elements whose values vary from one call to the next. Typically, these include unique identifiers that cannot be replayed "as is", and which must be handled individually.
When a dynamic parameter is not handled correctly:
Error 500) when validating the Virtual User;
NeoLoad automatically handles the most common parameters, such as the Framework .Net __VIEWSTATE parameter. However, NeoLoad cannot automatically handle some parameters that are specific to an application. These needs to be handled individually, that is to say by placing an extractor on the value returned by the server and injecting the extracted value into the appropriate requests.
This tutorial will show how search for, and handle, a dynamic parameter. The steps are as follows:
The example used throughout this tutorial is taken from an e-commerce demo application. The recorded scenario concerns the purchasing of an animal on the website.