Generating A Random Secure Key For Web Token Generation
[Creating a JWT](./Security-With-Json-Web-Tokens.html) requires a random, secure key of at least...
Coding is not difficult...
Learning to code is easy in the same way that learning the rules of chess is easy.
Anyone can learn what a for-loop is. Anyone can learn what a while-loop is. Anyone can learn what a variable is... just as easily as someone can learn how to move a pawn or a rook, but learning how to move a pawn or a rook -- or any of the other pieces -- does not mean you know how to play chess. There are certain patterns/strategies that have a higher probability of success and moving your pieces around arbitrarily, without any direction or vision for the endgame, while it may not break any rules is a strategy that's almost guaranteed to lose. Likewise, knowing what for-loops and while-loops are (and even knowing when to use one over the other) does not mean you know how to program -- you just learned the rules of the game. The next step is learning the patterns/strategies that lead to success (or an app that doesn't explode everytime you touch the code base).
I created this website in an effort to outline some of these high level patterns and give pragmatic approaches to satisfy common application requirements across all different aspects of software engineering. The articles are divided into the specific language/framework/technology/topic they pertain to. This is a living, breathing document -- like the U.S. Constitution -- that I'll be updating constantly.
Java
View AllJava/Spring Framework
View AllA Better Approach To Many To Many
Spring Data JPA offers an annotation for many-to-many mappings, at `jakarta.persistence.ManyToMa...
Handling Database Transactions
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Mapping DTOs To Entities With MapStruct
A common pattern in Spring apps is to have the service and controller layers communicate by pas...
Security With Json Web Tokens
The following dependencies are necessary to enable Spring Security with JsonWebtoken for authent...
LeetCode Problems
View AllAdd Two Numbers
The problem gives two pointers that we will traverse simultaneously. In each iteration, we'll a...
Longest Palindromic Substring
The key to understand with palindromes is that there are two different kinds of palindromes: **o...
Longest Substring Without Repeating Characters
The best approach to this problem is to have two pointers that traverse the string. At every poi...
Median of Two Sorted Arrays
The key to understand in this problem is that the two arrays are _already sorted_. So finding th...