A study on scale: WhatsApp & Google Drive… the story of our integration- Google Developers Blog

This post details the technical challenges and solutions involved in integrating WhatsApp's backup functionality with Google Drive. It highlights the scale of data involved (billions of messages, millions of users) and the engineering efforts required to achieve reliable backups. Key technical aspects discussed include: the need for efficient data transfer, handling large volumes of data, ensuring data integrity, and managing user consent for backups. The post emphasizes the engineering required to scale such a feature to millions of users, involving considerations for storage, network bandwidth, and processing power. It also touches upon the user experience aspects of making the backup process seamless and reliable.