Worked on the elastic/beats repository to address a data monitoring issue in Metricbeat, focusing on backend development and API integration using Go and JSON. The main contribution involved refactoring the Metricbeat stack monitoring code so that index summary metrics are now sourced from the node-level statistics endpoint rather than the previous index-level endpoint. This technical change prevents data gaps in monitoring charts when indices are deleted, resulting in more reliable and accurate Elasticsearch dashboards. The solution was validated through testing and review, ensuring that Metricbeat now consistently retrieves node-specific statistics and enhances the trustworthiness of monitoring data for users.