The Easy Way to Validate Data in Your Spring Boot App

Stop bad data before it ever crashes your app! In this comprehensive Spring Boot validation tutorial, we'll master the art of using built-in annotations to make your applications bulletproof. We'll go step-by-step, from basic checks to advanced pattern matching, ensuring your API only accepts clean, valid data. This is the perfect guide for any Java or Spring Boot developer looking to build more robust, reliable, and secure applications. 💡 *In This Video, You'll Learn:* * Why validation is one of the most critical parts of any application. * How to set up the Spring Boot Validation starter and Lombok to reduce boilerplate. * Validating for presence with *@NotNull* and *@NotEmpty.* * Setting numeric boundaries with *@Min*, *@Max*, and *@DecimalMin/@DecimalMax*. * Enforcing specific text formats with @Pattern and @Email. * Working with dates using *@Past* and *@Future*. * Controlling the number of digits with *@Digits*. * How to trigger validation in your REST Controller using the *@Valid* annotation. * Testing all our validation rules together using Postman. 🔗 BONUS 💻 Get 3 Months of IntelliJ IDEA Ultimate for FREE: https://www.jetbrains.com/store/redeem/ 👉 *Use Promo Code:* LearnWithIfte ✅ For branding and Business inquiries ► learnwithiftekhar@gmail.com ► Join Discord: https://discord.gg/JZmFvSxw 📘 Resources Mentioned: 🧑‍💻 Source Code: https://github.com/learnwithiftekhar/spring-boot-data-validation Grab Free Guide *Secure 3 Spring Boot endpoints in 30 minutes (free guide)*: https://learnwithiftekhar.kit.com/secure-your-api-in-30-minutes 🙊 Here are the tools and resources I use in my videos: 👉 Master programming by recreating your favorite technologies: https://app.codecrafters.io/join?via=learnwithiftekhar ► Tool that I use for screen recording: CleanShot X for Mac * cleanshot.sjv.io/bODOab ⛔ Background sound: https://share.epidemicsound.com/ia954g 💻 *Running Windows on Mac? Get Parallels Desktop with a 20% discount!* 👉 *Use code PARALLELS20 and grab it here:* https://parallels.sjv.io/bOVD3M IDE I use for coding * IntelliJ Idea Ultimate * VsCode * Sublime 🌐 Secure your connection with NordVPN: https://nordvpn.sjv.io/o4zYan 🤚 In case you want to contact me: ❌ My LinkedIn profile: https://www.linkedin.com/in/hossain-md-iftekhar/ ❌ My X / Twitter profile: https://twitter.com/ifte_hsn ❌ Github: Github: https://github.com/learnwithiftekhar *Note:* Some of the links in this description are affiliate links, and I may earn a small commission if you make a purchase through them. Thank you for your support.