AWS autoposting
A scheduled Facebook poster that stays on‑topic, answers questions correctly from a Google Drive knowledge base, and doesn’t surprise you with a huge cloud bill. Seven posts on the same system — one diagram at a time — with an engineering reference at the end.
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01
A Facebook autoposting system on AWS for $2–$5 a month
The whole system on one page — scheduled posting, topic guardrails, a Drive-based knowledge base, real-time replies.
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02
How code becomes a working system
Push to GitHub, walk away. The cloud handles the rest — and never holds a long-lived password.
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03
How a post actually goes out
Five quick checks between “it’s time” and “post is live.” Cheap gates first, expensive gates only when needed.
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04
How the Drive folder powers everything
The client edits a Google Doc. The system updates itself — with a safety layer that keeps the old version live if anything looks broken.
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05
How replies work without making things up
The bot answers from the client’s docs only — or escalates to a human. Citation required, no exceptions.
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06
What this all costs
A coffee a month, not a Netflix subscription. Line by line, where the dollars actually go.
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07
Engineering reference: the full architecture
Same system, drawn purely for engineers. Service names, resource identifiers, region, and the actual flow operations.