In this episode, I spoke with Hieu Do, who is a Solution Architect at FPT Software in Vietnam. As a side project, he built a hotel booking system for a friend using entirely serverless technologies.

He shared his experience and learnings from building this system and how he was able to keep the cost down. After running the system for a year, the system only costs an average of $0.82 per month and serves over 3000 users per day.

There are some useful tips that everyone can apply. Such as reducing the cost of API Gateway by cutting out the OPTION requests associated with CORS. Or looking out for CloudWatch costs when using 3rd party services that poll CloudWatch data, such as NewRelic.

Links from the episode:

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Opening theme song:
Cheery Monday by Kevin MacLeod
Link: https://incompetech.filmmusic.io/song/3495-cheery-monday
License: http://creativecommons.org/licenses/by/4.0

#90: He built a hotel booking system that costs $0.82/month to run