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Building Secure Authentication Microservices with Spring Boot: Part 1 - Getting Started

  • Spring Boot is a Java framework designed to help developers quickly build standalone Java applications.
  • Spring Boot is popular because it provides quick setup, opinionated defaults, embedded servers, and support for microservices.
  • Spring Boot's authentication powers come from Spring Security, which protects against unauthorized access and shields against malicious attacks.
  • Spring Boot is preferred for authentication due to its integration with the Spring ecosystem, enterprise-grade security, rich ecosystem, and microservices readiness.

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Prodevelopertutorial

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Remove Nth Node from End of List

  • Problem description: Given a linked list, remove the n-th node from the end of the list and return its head.
  • Example: Given a linked list: 1->2->3->4->5, and n = 2. After removing the second node from the end, the linked list becomes 1->2->3->5.
  • Solution 1: Fast and slow pointer solution
  • Solution 2: Two-star or pointer to pointer solution.

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Fortinet warns of malicious Python packages targeting credentials and user data

  • Fortinet Inc.'s FortiGuard Labs has discovered two malicious Python packages that pose a high risk of credential theft, data exfiltration, and unauthorized system access.
  • The first vulnerability, Zebo-0.1.0, exhibits sophisticated malware behavior, including keylogging, screen capturing, and data exfiltration to remote servers.
  • The second vulnerability, Cometlogger-0.1, targets system credentials and user data, evades detection, and can steal a wide array of user data.
  • To prevent infection, it is recommended to verify third-party scripts, implement firewalls and intrusion detection systems, and train employees to recognize phishing attempts.

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Dev

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Optimizing Serverless Lambda with GraalVM Native Image

  • Optimizing Serverless Lambda with GraalVM Native Image
  • GraalVM Native Image compiles Java applications ahead of time (AOT) into standalone executables, reducing cold start times and memory usage.
  • Implementation steps include project setup, adapting for ARM architecture, runtime configuration, and deploying the application using AWS SAM.
  • The transition to GraalVM Native Image resulted in reduced cold start times, minimized memory usage, and improved performance scaling.

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Medium

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Avoid These 5 Mistakes When Doing AI Projects Using TypeScript

  • Use well-maintained libraries with TypeScript definitions for AI projects.
  • Implement thorough data validation and preprocessing pipelines.
  • Optimize code and use asynchronous programming for efficient computations.
  • Define strict interfaces or types for AI model inputs and outputs and write unit tests.
  • Embrace TypeScript for robust AI development and prioritize clean code, optimization, and testing.

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Prodevelopertutorial

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Given an array, find 3 elements such that [a + b + c] = 0. Find all the 3 unique elements.

  • Given an array, find 3 elements such that [a + b + c] = 0.
  • Two solutions are possible: Iterative method and Two-pointer approach.
  • In the iterative method, we use three nested loops to find the combinations.
  • In the two-pointer approach, we sort the array and use two pointers to find the combinations.

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My first day of learning DSA

  • I still remember the day I began learning DSA.
  • I was quite intimidated, probably due to the way it's often hyped up.
  • Data Structures and Algorithms (DSA) are foundational pillars in computer science.
  • Benefits of learning DSA include enhancing problem-solving skills, optimizing code, preparing for technical interviews, and gaining a deeper understanding of how software operates.

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A Quick Guide To Status Code In Django REST Framework

  • Informational codes (100-199) are rarely used directly in DRF applications but are sometimes automatically managed by the framework.
  • Success codes (200-299) represent successful requests in REST APIs.
  • Client errors codes (400-499) indicate that the request from the client was invalid or couldn't be fulfilled by the server.
  • Server errors codes (500-599) indicate server errors in REST APIs.

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Thoughts on Digital Ontology

  • The digital world often appears at the lower levels of being, with digital images and simulations being representations that are twice removed from reality.
  • However, the digital world can also act as a bridge to higher knowledge, particularly in fields like object-oriented programming.
  • By creating abstract classes that encapsulate universal principles, programmers can work with concepts that transcend the physical and approach universal truths.
  • To use technology wisely, we must reflect on how it shapes our perception of reality and strive to use it as a bridge to deeper truths.

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Prodevelopertutorial

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Given an array of non repeating numbers and a key, find all the unique combinations in that array, where the sum of those combination is equal to the key.

  • Given an array of non-repeating numbers and a key, find all the unique combinations in that array where the sum of those combinations is equal to the key.
  • Example 1:
  • Input: Array = [2,3,6,7], key = 7
  • Output: [[7],[2,2,3]]
  • Example 2:
  • Input: Array = [2,3,5], key = 8
  • Output: [[2,2,2,2],[2,3,3],[3,5]]
  • Solution in C++ code provided.

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Prodevelopertutorial

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Find the Container with Most Water explanation with diagram and solution

  • The problem requires finding a container that can hold the most water among the given set of vertical lines.
  • The solution involves calculating the area of all possible containers using the formula: Area = (right - left) * min(left_height, right_height).
  • A left pointer and a right pointer are used to iterate through the array and find the maximum area.
  • The time complexity of the solution is O(n), and the space complexity is O(1).

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The Evolution of Technology

  • The 1990s saw the dawn of the internet age, with dial-up connections becoming a staple in homes and offices.
  • Broadband technology entered the scene in the early 2000s, marking the decline of dial-up.
  • Broadband provided faster speeds and introduced the concept of always-on connectivity.
  • Streaming platforms, online gaming, and social media platforms like MySpace and Facebook emerged.

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Story One: The Gathering in Alaska

  • A group of friends gather in Alaska, renting a cabin near Kenai Fjords National Park.
  • They reminisce about their childhood dreams and question why they let life get in the way.
  • They decide to challenge themselves and pursue their passions during the trip.
  • Through facing fears and embracing new experiences, they rediscover their dreams and strengthen their friendship.

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Story One: A Tale of Reunion

  • Noah organizes a reunion with his friends at a beachside café.
  • They reminisce about their past and share stories filled with laughter.
  • Each member reflects on their personal growth and experiences since their last gathering.
  • They make a commitment to maintain their friendship and plan to have annual reunions.

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Prodevelopertutorial

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Given an input string (s) and a pattern (p), implement regular expression matching with support for ‘.’ and ‘*’.

  • The problem of regular expression (regex) matching has always fascinated computer scientists.
  • Regular expressions are patterns used to match character combinations in a string.
  • This article describes a solution to the problem of regex matching by using a bottom-up dynamic programming approach.
  • The solution uses a boolean 2D array to store the truth values and iterates through all the elements to fill the boolean array taking into account four possible conditions.
  • The time complexity of this solution is O(m*n) and the space complexity is also O(m*n).
  • An example is presented in the article to explain the solution in detail.
  • The final answer is true if the string matches the pattern.
  • This solution is implemented in C++.
  • Pattern and string can be matched using the implemented solution.
  • The code and output are well explained in the article with the help of images.

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