Dev Team Shares Lessons from Building WhatsApp Automation Using Baileys Library

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A development team building Argonova, a WhatsApp automation tool for businesses, has shared insights from choosing the open-source Baileys library over Meta's official WhatsApp Business API. Baileys works by reverse-engineering the WhatsApp Web protocol to allow programmatic control of sessions via Node.js, but it carries risks including potential account bans due to violating WhatsApp's terms of service. To reduce these risks, the team uses human-like sending patterns with randomized delays and daily message limits instead of bulk sending. The team is now developing a second version of Argonova built on the official WhatsApp Business API, with plans to offer both tracks for different business needs. Further technical details on the migration, including webhook architecture and cost comparisons, are expected in a follow-up post.

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