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How to Prepare Your UI Vs. API Load Test

Before discussing UI and API load tests, there are a few key differences we should take into consideration. For a UI, you want to test the load of an actual user scenario. For example: logging in, adding items to a cart, filling out a form, and so on. Both tests are usually done by generating HttpWebRequests, however the API load test output will be in a JSON or XML format (no embedded objects involved) whereas a UI test returns the actual page.    

Refael Botbol