The article discusses how to write data from an edge device to a cloud instance of InfluxDB using Flux. It explains that writing data directly from IoT devices to InfluxDB Cloud is the most powerful and flexible method, offering benefits such as data preparation and cleaning before sending it to the cloud, selective data transmission, task isolation, and additional security layers. The article also introduces the 'to()' function which now supports writing data from an OSS v2.1 instance to an InfluxDB Cloud instance. It provides a step-by-step guide on how to use this function and highlights its limitations, suggesting using the mqtt.to() function for larger workloads. The article concludes by encouraging readers to take advantage of these features and share their experiences with the community.