Why Your API Should Use Monetary Amounts as Integers
from The Developer Tools Podcast with Fexingo: APIs, Infrastructure, and Software for Engineers Hosted by Fexingo
In this episode of The Developer Tools Podcast, Lucas and Luna explore why APIs should represent monetary amounts as integers rather than floats. They walk through real-world examples—like Stripe and Square—where cents-based integers prevent rounding errors that can cost companies millions. The hosts discuss the technical pitfalls of floating-point arithmetic, the business implications of rounding errors, and practical strategies for designing money-safe APIs, including using minor units, decimal libraries, and clear documentation. They also touch on the importance of consistent precision across integrations and how this choice impacts everything from pricing pages to accounting systems. Whether you're building a payments API or just handling prices in a side project, this episode gives you concrete reasons to ditch floats for integers and the best practices to do it right. #MonetaryIntegers #APIDesign #FloatingPointMath #PaymentsAPI #Stripe #Square #DeveloperTools #BusinessTechnology #SoftwareEngineering #Precision #RoundingErrors #DecimalHandling #MinorUnits #Cents #APIBestPractices #FexingoBusiness #BusinessPodcast #TechPodcast Keep every episode free: buymeacoffee.com/fexingo
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