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Resolving MySQL Port Conflicts: A Step-by-Step Guide

Encountering issues with MySQL due to port conflicts or lingering processes can be frustrating.
To fix port conflicts, you need to identify and terminate the rogue MySQL processes.
Restart the MySQL service after terminating conflicting processes.
Follow best practices to avoid future conflicts.

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11 Likes

Medium

438

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Understanding Throttling Concept In Depth

Stats are computationally expensive and are not updated in real-time, but every 6 hours.
The client wants a refresh button for users to get the latest stats instantly.
The challenge is dealing with a high number of requests if the button is clicked multiple times.
Using the concept of debounce can help solve this issue.

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Infoq

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Article: Spring Security Configuration with Flow Diagrams

Spring Security is an enterprise framework that provides authentication, authorization, and other security features for Java/Jakarta EE applications.
Developers can configure Spring Security's SecurityFilterChain interface for managing CORS, CSRF protections, and authentication filters while allowing specific endpoints such as sign-up and login.
Access and refresh tokens can strategically be used to balance security concerns with user convenience, minimizing the risks of token compromise while enhancing user experience.
Axios can be used within client-side applications to handle token-based requests efficiently, with interceptors that manage token insertion and refresh scenarios, ensuring robust and seamless user interactions.
Flow diagrams can be used to better understand the API calls that Spring Security orchestrates under the hood.
The article describes a solution for registering and authenticating a user through a client-side JavaScript application using the Spring Security infrastructure, access and refresh tokens.
The system supports user registration, user authentication and authorization, count of registered users, and token refresh processes.
The article explains how these processes can be configured and relevant Spring Security classes such as SecurityFilterChain, LoginAuthenticationFilter, TokenAuthenticationFilter, and RefreshTokenAuthenticationFilter.
The article also provides a description of the process on the client-side using the axios library to handle token-based requests.
The article concludes with a note on exception handling and OAuth2, which will be covered in separate articles.

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Dev

103

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From Circuit Boards to Code: How Being a Polyglot Web Developer (and an Electrical Engineer) Supercharged My Programming Game

Being a polyglot web developer and an electrical engineer can supercharge your programming skills by leveraging efficiency, problem-solving ability and programming tasks where constraints can spark creativity.
Debugging principles largely translate between coding and scalability. Debugging is debugging is debugging. The process of debugging in electrical engineering usually involves testing each component of the system to identify the root cause of the problem and fixing it. Same goes for development: you start debugging without panic and pinpointing the root cause step by step until the problem is found.
Whether it's wrangling with different voltages or smashing data sets, efficiency is fundamental. Write code that’s both efficient and clean, lean and legible. Use different programming idioms efficiently and try not to introduce bugs whilst trying to optimise code.
Electrical engineers only use the right tool for the job. Programming languages are similar. For quick tasks, use Python, opt for Rust if performance is key, and for small web projects, learn PHP. Choose the buckshot approach and pick the right tool for the job if you’re getting serious about resolving a programming issue.
As limitations can inspire creativity, it's critical in coding and engineering to find the optimal solution or build the fastest circuit. Constraints are relished in electrical engineering, as the limitations of voltage, current, and board space require creativity. The same notion goes for development. If client budgets are a constraint, build with plain HTML and CSS instead of React. Though restrictions and cybersecurity come hand in hand, encoding JavaScript efficiently can create a faster app.
Electrical engineers take a holistic picture of systems, and web developers must do this, too. Code's integral part is interaction between different systems, components and APIs in web development. While debugging, considering the wider view can help identify issues. Systems thinking makes one understand the impact of changes across different systems better.
Electrical engineering experience combined with software development skills can translate perfectly. A polyglot web developer with an EE background has a lot of discipline, problem-solving, and has a focus on efficiency. Although in software development, you might miss the minutes with your oscilloscope, making the most out of your electrical engineering background and prior experience can help you be the best developer you can be.
As a combination of EE and software developemnt skillset means you’ll have a unique perspective and approach that can be useful for various coding assignments. By leveraging these digital skills, you can achieve a unique perspective and cultivate a true passion for coding. So, keep learning, keep debugging, and never forget to respect the code – and the circuits.

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6 Likes

Medium

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Web3Mail vs. Traditional Email: A Comparative Guide for Email Developers

iExec's Web3Mail offers a privacy-focused alternative to traditional email systems for developers and users.
Web3Mail prioritizes user privacy, data ownership, and user control over contact information.
It encrypts user email addresses, stores encrypted data in IPFS, and relies on the blockchain for transactions.
Web3Mail provides opportunities for users to monetize their emails and offers a privacy-first approach.

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Dev

271

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How to Configure SSH for GitHub Authentication

Secure Shell (SSH) authentication is the recommended way to securely connect to GitHub repositories without needing to enter your credentials every time.
To configure SSH authentication for GitHub, follow these steps:
1. Check for existing SSH keys by running 'ls -al ~/.ssh'.
2. Generate a new SSH key using 'ssh-keygen' command.
3. Add your SSH key to the SSH agent.
4. Add the SSH key to your GitHub account.
You can also test the SSH connection and configure Git to use SSH.
By following these steps, you can securely connect to your GitHub repositories using SSH authentication.

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Nordicapis

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6 Awesome Nordic FinTech Companies To Watch

The adoption of open banking has caused a boom of outstanding Nordic fintech companies in Denmark, Norway, Sweden, Finland, Iceland, Greenland, Åland, and the Faroe Islands.
Tink, an open banking company offers everything from payment processing to account information to data-driven financial advice and a robust API, is worth raving about.
Yapily is a leading tool that allows connecting with 97 different banks and financial institutions in the Nordic countries using a single API, supporting recurring payments, scheduled payments, and bulk payments.
Klarna, one of Europe's biggest fintech providers, supports a 'Buy Now, Pay Later' function and offers integration with many of the most popular third-party payment platforms like Shopify, Stripe, or Magento.
Vipps, a Norwegian payment app provides pre-built flows for accepting online payments, in-store payments, and even rewards programs, all accessible via an API.
Pleo, based out of Copenhagen, has provided digital and even physical credit cards and streamlined the bookkeeping process for over 20,000 businesses, allowing integration with numerous third-party service providers.
Horde, an antidote to the confusing and complicated loan system, allows users to simplify the loan process by creating a payment plan that enables users to borrow from their community.
Fintech is here to stay and widespread fintech adoption is likely to increase regulations like open banking and data privacy standards like GDPR.
It's a good idea to get comfortable with fintech now if anyone is planning on doing business in the Nordic companies.

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3 Likes

Tech Republic

239

Hiring Kit: Platform Developer

A customizable hiring kit is available to help businesses find the right platform developer.
The kit includes salary details, job description, interview questions, and a job advert.
Platform developer's responsibilities include developing the company's platform, optimizing existing systems, and maintaining APIs.
The hiring kit is available for download at $9 or as part of a Premium annual subscription.

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14 Likes

Medium

438

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AI is the wakeup call we need

The rise of AI has prompted us to reevaluate our unique abilities as humans.
While AI may surpass us in intelligence, our power lies in turning our visions into reality.
Code completion and AI tools are simplifying the process of creating new solutions and fostering innovation.
It's time for us to reclaim our innate ability to think, act, and create in order to shape our world.

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26 Likes

Medium

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Ai Robots and humanoid robots; are they the the answer to a better love life?

There are some people asking “How can robots benefit me,” and some have interesting ideas. Obviously that’s not possible right, how can someone be intimate with a robot?
Ai robots are built to help scientists, researchers, doctors, engineers and more. They’re meant to protect humans against harm and expand their horizon in research, technology and environmental development.
Many men sexualize the robots as its skin makes them more intrigued, some of them even have tight-fitting clothing on. The robots can be customized to your liking and some men ask for celebrities and even asked how young can they be made. It’s disgusting.
Since the men are moving onto fake silicon skin and sexual activity with technology, it brings up a question if they even pursue a relationship with a robot. How can you pursue a relationship with someone that doesn’t feel emotional connections?
A few videos have circulated where someone asked the robot about their darkest thought which is scary because they said humans will eventually be replaced by robots.
It is very scary to think that they’ll take over. But I think if you stay nice to them and don’t do things that anger the robots like what Ameca said.
Nobody is sure if robots will take over or not. But most robots say it’s a dark thought and can be possible.
Although they can live in a civil society, do robots even like humans? It seems not so much but they’re still very intrigued.

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2 Likes

Medium

415

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Deciphering Python’s Traceback (most recent call last)

A traceback in Python is part of an exception object and includes the call stack and error message.
The traceback module provides functions to extract, format, and print traceback details.
Traceback helps in identifying the type of error and its origin in the code.
Inspecting the code at each step of the call stack helps in finding the logic that led to the error.

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25 Likes

Dev

320

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Lite version of Flyway migrator for PostgreSQL in TypeScript

A developer has created a lightweight clone of Flyway migrator for PostgreSQL in TypeScript.
The developer wanted a solution without including JVM in Docker images to reduce image size.
The clone supports versioned migrations, repeatable migrations, and some callbacks.
The clone is built using Node.js and has features like migration command dry runs and creating and applying migrations.

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19 Likes

Dev

144

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Handling Race Conditions in Real-Time Apps 🏃💨

Real-time apps can often have hidden quirks - a small timing issue where the users presence was not reflected on the board was due to a classic race condition occurring when multiple users joined at the same time.
If someone joined during the window between fetching the initial state from the API and establishing the WebSocket connection, the WebSocket may have missed the user-joined event which meant that the new arrival wouldn't always appear on another user’s board.
If the WebSocket connection was established first, this could add unnecessary overhead which would delay the user seeing the board.
The Event Cache solution was created by implementing a small “event cache” that tracks any incoming WebSocket messages until the UI is ready to process them by fetching the board's state twice.
After the events have been placed in the cache, the system can replay the event cache in the correct order to make sure they are accurately reflected on the board.
Although there are other methods to prevent this issue, the Event Cache solution offers a more straightforward system that builds on existing REST endpoints, allowing most real-time logic to be kept in the client.
Since implementing the event cache strategy, they've seen a decrease in support tickets, better reliability, and a peace of mind knowing that their application is always in sync.
Real-time collaboration is powerful, but it can be full of hidden details that can catch one off guard - the event cache solution is one solution to solve the race condition issue.
To ensure that subscribers have the best real-time collaboration experience possible, product evolution and constant testing are recommended.
Kollabe is a digital whiteboard tool that can be used for teams to have planning poker and retrospectives with, without the occurrence of the “invisible participant” scenario.

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8 Likes

Medium

203

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My Experience with Competent and Incompetent Programmers

A client shares their experience with competent and incompetent programmers.
The client had to deal with an incompetent programmer who had to be pushed to work. The programmer tried to quit multiple times and ignored the detailed technical specifications provided by the client.
Despite the challenges, the client managed to negotiate the completion of the current version of the project.
The article aims to warn clients about potential pitfalls and challenges when working with programmers.

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12 Likes

Javacodegeeks

203

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Continuous Delivery with Java: Rolling Updates in Kubernetes

Continuous Delivery (CD) is essential for modern software development, enabling teams to ship reliable and scalable applications efficiently.
A rolling update in Kubernetes is a strategy for deploying changes to an application without downtime.
Implementing rolling updates effectively in a Java CD pipeline introduces unique challenges.
Java applications often have long startup times due to dependency injection frameworks, classpath scanning, and JIT compilation overhead.
Java applications frequently interact with stateful resources, such as databases or message brokers.
Java applications often communicate with other services, and rolling updates may introduce API version mismatches and schema migration conflicts for databases.
Improper readiness or liveness probe configurations in Kubernetes can prematurely mark a pod as ready or fail to detect startup failures.
Rolling updates require robust validation mechanisms to ensure that new changes work as intended, but Java applications often lack thorough canary testing setups.
Java teams can optimize health checks, API versioning, and canary testing to ensure smooth rollouts.
Tools like Jenkins, Helm, and Prometheus can help in building reliable, scalable, and efficient CD pipelines tailored for Kubernetes.

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