google-analytics-data-v1beta

https://github.com/googleapis/google-cloud-ruby

The Google Analytics Data API provides programmatic methods to access report data in Google Analytics 4 (GA4) properties. Google Analytics 4 helps you understand how people use your web, iOS, or Android app. Note that google-analytics-data-v1beta is a version-specific client library. For most uses, we recommend installing the main client library google-analytics-data instead. See the readme for more details.