monsoon-weather-station is a dependency library of the Monsoon load testing framework. Monsoon users can use monsoon-weather-station to write their load test scripts. Weather Station makes use of methods from the Performance API built into browsers and gives engineers a way to write code to measure how long individual user actions take. Visit https://github.com/monsoon-load-testing/monsoon#scripting for the definition of the methods and a worked example.
Monsoon is an open-source, serverless framework for running browser-based load tests in the cloud. Visit https://github.com/monsoon-load-testing/monsoon to try it out!