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Serving Images Outside the Static Folder in Spring Boot

Spring Boot serves files by default from classpath folders like static, public, resources, and META-INF/resources without explicit controller code.
When serving files outside these folders, you need to specify the location using a property or WebMvcConfigurer.
Handling custom images involves mapping a controller route to a physical file path and checking its existence.
For large files, streaming directly from disk is advised to avoid memory strain.
Proper MIME type detection is crucial for browsers to display images correctly.
Preventing traversal attacks involves building the path from a fixed directory, normalizing it, and checking permissions.
Using API keys for file access separation between trusted requests and random traffic is recommended.
Authentication and permission checks are necessary when files are user-specific.
Caching strategies should be tailored based on the sensitivity of the content being served.
Control over file serving allows for customized handling of requests and content delivery.

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Medium

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10 Pythonic Tips I Wish I Knew Sooner as a Data Scientist

The author shares 10 Pythonic tips for data scientists to write more elegant, readable, and faster code.
Initially, the author's code was verbose and clunky with for loops and temporary variables.
After learning the Pythonic way, the author found a better approach to coding.
The tips include real-world DataFrame examples and explanations of why they are important.
The tips helped the author become faster and more confident in their work.
The examples are based on a simple DataFrame resembling e-commerce or customer analytics data.

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Medium

403

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When navigating the fast-moving world of crypto, it’s often the steady flow of updates new…

BingX is hosting a Humanity Protocol $H Listing Carnival event from June 24th to July 1st with a 170,000 USDT prize pool.
The event aims to promote the launch of $H on the platform and incentivize early engagement and trading.
Participants need to register, complete identity verification, and engage in depositing and trading $H during the specified period.
Certain regions such as Indonesia, Pakistan, and Bangladesh are excluded from participation due to compliance reasons.
The event provides opportunities for both existing BingX users and newcomers to benefit from the $H listing.
BingX has outlined transparent rules for the event, including reward calculations and regulations against wash trading and multi-account abuse.
Humanity Protocol suggests a focus on identity, privacy, or decentralized governance in the evolving blockchain applications landscape.
Investors are advised to conduct independent research on the project's fundamentals before participating in the Humanity Protocol listing event.
Listing events like this provide opportunities rather than guaranteed returns, highlighting potential entry points for informed investors in the crypto market.

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Medium

152

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The Million-Dollar Movie Marathon: How Netflix Turned Recommendation Into Competition

In 2006, Netflix launched a competition offering one million dollars to improve their movie recommendation algorithm by 10%.
The aim was to predict what viewers wanted to watch before they knew it themselves.
Netflix's existing recommendation system, Cinematch, was decent but not groundbreaking.
The competition aimed to enhance the accuracy of movie suggestions beyond basic correlations.
The winning team had to develop an algorithm that surpassed Cinematch's capabilities by 10%.
The dataset provided for the competition was anonymized user ratings of movies.
Contestants worked to innovate predictive models to improve recommendations.
The Netflix Prize attracted global participants, including data scientists, engineers, and academics.
Teams collaborated to harness the power of machine learning and data analysis.
This competition marked a shift towards personalization in the entertainment industry.
The ultimate goal was to provide viewers with tailored recommendations based on their preferences.
The success of the Netflix Prize demonstrated the power of competitions in driving innovation.
The story showcases how Netflix leveraged competition to enhance user experience in content consumption.

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Dev

276

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Rails with ROM.rb: Life After ActiveRecord

The article discusses using ROM.rb (Ruby Object Mapper) as an alternative to ActiveRecord in Rails applications.
The Pain Points with ActiveRecord include performance issues, testability challenges, and maintainability concerns.
ROM.rb offers explicit data layers, fast SQL operations, and decoupled business logic.
Core concepts of ROM.rb include relations (new model structures), repositories (query layer), and changesets (write layer).
Gradual adoption of ROM.rb in Rails involves steps like replacing models, rewriting controllers, and migrating queries.
ROM.rb provides performance gains by eliminating lazy loading and callback issues compared to ActiveRecord.
Recommendations on when to stick with ActiveRecord include for prototyping, simple CRUD apps, and teams resistant to change.

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Dev

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Pinning GitHub Actions and using ratchet

Pinning GitHub Actions is important for security to ensure dependencies are locked to specific versions.
The practice of pinning actions is recommended and made easier with tools like Dependabot.
A tool called 'ratchet' assists in pinning dependencies by providing commands like lint, pin, unpin, update, and upgrade.
Usage of ratchet involves running commands in the project directory to manage unpinned versions in GitHub Actions workflows.
Ratchet helps identify and resolve unpinned references, making it clear which dependencies require pinning.
After running 'ratchet pin', the tool generates diff changes to show the pinned versions in the workflow files.
Replacing references with specific commit hashes maintains stability, as demonstrated by the example with 'nosborn/github-action-markdown-cli'.
Verifying commit hashes against the tagged versions ensures the pinned dependencies match the intended versions.
Maintaining pinned versions enhances security and stability but requires diligence in updating dependencies.
Ratchet offers commands like update and upgrade to manage pinned versions efficiently.
Running 'ratchet unpin' can revert back to unpinned versions if needed, providing flexibility in managing dependencies.
Adopting best practices with tools like ratchet can help streamline dependency management in GitHub Actions workflows.

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Medium

346

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Why JavaScript Developers Struggle to Learn

JavaScript has evolved significantly since its inception in 1995, resulting in frequent updates through ECMAScript standards like ES6 in 2015.
New features such as arrow functions, destructuring, and async/await require developers to consistently enhance their knowledge.
The vast JavaScript ecosystem includes frameworks (React, Vue, Angular), libraries (jQuery, Lodash), and tools (Webpack, Babel, npm).
Keeping up with the rapidly changing landscape of JavaScript can be overwhelming, especially for beginners.
The high volume of tools and updates leads to a steep learning curve, making developers feel pressured to learn everything quickly.
To overcome these challenges, developers should focus on mastering core JavaScript concepts before delving into frameworks or tools.
It's important to stay updated using reliable resources like MDN Web Docs or JavaScript-focused newsletters.
Prioritize practical application over constantly chasing trends in the JavaScript ecosystem.

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Dev

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Introducing WebLite DSL + Try-It Editor: YAML Meets Web Design Simplicity!

WebLite DSL is a new minimalist domain-specific language that allows building static websites using YAML.
The WebLite Try-It Editor complements WebLite DSL, offering a real-time playground to visualize .wl sites instantly.
WebLite DSL transforms human-readable .wl (YAML) files into complete HTML and CSS websites without the need for manual HTML coding.
Key elements such as reusable layout blocks, aliases for styling, and multi-page support are highlights of WebLite DSL.
Zero frontend dependencies are required as WebLite DSL generates pure HTML/CSS output.
The WebLite Try-It Editor provides an online environment to see YAML code come to life instantly.
Features of the Try-It Editor include a code editor with syntax highlighting, dark/light theme toggle, real-time browser preview, and no account requirements.
GitHub repositories for WebLite DSL and its builder engine are available.
The roadmap for WebLite DSL includes features like dark mode, components, responsive UI, one-click hosting, custom themes, and more.
WebLite DSL simplifies building personal pages, documentation sites, or visually teaching HTML/CSS concepts.
Feedback, ideas, and contributions for WebLite DSL are welcomed to enhance the web development experience.
The initiative aims to make the web more readable using YAML blocks.
WebLite DSL is related to #WebDev, #OpenSource, #React, #Python, #Flask, #SideProject, #Hackathon, #DeveloperTools.
WebLite DSL and Try-It Editor offer a clean workflow for web development from a YAML file.
The toolset enables users to create websites efficiently and experiment with visual changes easily.
The project encourages community participation to improve the web development process gradually.
Whether for personal projects or educational purposes, WebLite DSL aims to simplify website creation and visualization.
Overall, WebLite DSL introduces a novel approach using YAML for web design simplicity and efficiency.

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Medium

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Recreating React’s useEffect in Plain JavaScript – React under the Hood

UseEffect is a hook in React that allows running side effects after component renders.
It can respond to changes in dependencies.
The article explores the idea of stripping away React magic and recreating useEffect in plain JavaScript.
The essence of useEffect involves a function that runs after rendering.
A simplified version of useEffect is presented using plain JavaScript.
The recreated logic behind useEffect is shown.
A simple component simulation using the plain JavaScript version of useEffect is demonstrated.
The recreation is minimal and conceptual, lacking features like cleanup and handling certain scenarios.
Understanding how useEffect works is highlighted by this simplified version.
React hooks, like useEffect, are based on simple, predictable logic under the hood.
Recreating components yourself can enhance understanding of their mechanisms.
The article concludes that having recreated useEffect in plain JavaScript can change one's perspective on this React feature.

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Medium

309

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Why My Developer Portfolio Failed to Get Interviews (Until I Stopped Showing Code)

The author's web developer portfolio and frontend developer resume appeared strong, yet they were not receiving responses from tech recruiters.
After making a small adjustment to their portfolio approach by not showing code initially, the author started receiving more software engineering interviews.
The author did not fabricate experience or projects but made a simple tweak to their portfolio strategy.
The realization was that hiring managers are overwhelmed with numerous developer portfolios to review, so the key is to stand out.

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Dev

160

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The JS Bundle Wars.

The JS Bundle Wars concern the use of ES modules (esm) and CommonJS (cjs) in JavaScript development.
The author discusses the relevance of UMD and AMD modules in the current JavaScript ecosystem.
Questions may arise about references to 'es' and the required version like es2020 or esnext.
Teams may query how assets and CSS are bundled, highlighting the complexity of the topic.
The author starts by detailing a simple 'hello world' application using Vanilla JS without React.
The repository 'js-bundle-war' is used for experimentation with the code.
The author uses Vite as the bundler instead of webpack for simplicity.
The bundling process involves importing ES modules and using a script type='module' tag in an index.html file.
A package.json file with Vite as a devDependency and build script is utilized.
The default Vite configuration bundles assets like JS, CSS, and SVGs, and creates the necessary HTML files.
Vite-specific details like a polyfill for modulepreload and inlining certain SVGs are highlighted.
Assets are managed based on their location, either under /public or src/ in the build output.
Components are minified during the bundling process.
The bundled output includes the main.js file with all dependencies handled.
The author concludes by emphasizing the ongoing nature of the JS Bundle Wars.
The topic is considered complex and impactful in modern JavaScript development.
The article reflects on the importance of understanding bundling processes for web development.
The author expresses a desire to potentially write a book on this subject in the future.

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Medium

276

Chapter 7: Smarter Together — Exploring Ensemble Learning and Random Forests

Ensemble learning involves using a group of diverse predictors to improve performance compared to relying on a single model.
Various techniques were covered in the chapter to build ensembles, each addressing bias, variance, or both.
Random Forests emerged as a well-balanced and practical ensemble method, offering speed, ease of use, and feature importance scores.
Random Forests build models in parallel, while boosting trains models sequentially using error feedback.
Both ensemble methods require tuning hyperparameters like learning rate, number of estimators, and tree depth.
The chapter highlighted the benefits of collaboration in machine learning through practical examples and clear explanations.
Ensemble learning not only improves accuracy but also enhances stability and performance in real ML systems through model diversity and combination strategies.
The next topic covered in the chapter will be dimensionality reduction to simplify data without losing meaning.

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Dev

350

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How to sync Context across AI Assistants (ChatGPT, Claude, Perplexity...) in your browser

Using multiple AI assistants can lead to a lack of shared context and memory, resulting in inefficiency and fragmentation.
Existing AI tools do not retain user preferences or previous interactions, causing repetitive explanations when switching between assistants.
OpenMemory Chrome extension addresses this issue by providing a universal 'memory layer' for various AI assistants.
The extension captures, retrieves, and injects contextual memories in real-time across different LLM assistants.
Features of the extension include syncing memories, adding context to chats, and managing memories through a sidebar UI.
Architecture of the extension follows Chrome Manifest V3 model with specific integration scripts for supported AI chat sites.
Privacy and data security measures ensure that user data is encrypted, stored securely, and not shared with third parties.
Practical use cases include developer notes, capturing snippets for reuse, and cross-assistant research and brainstorming.
The OpenMemory extension aims to streamline interactions with AI assistants by providing a shared memory system.
It offers a solution to the problem of fragmented context and repetitive explanations when working with multiple AI tools.

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Medium

239

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The Dream of a Big House: More Than Just Four Walls

The dream of a big house involves more than just seeing bricks and walls – it symbolizes a future and success.
A big house serves as a symbol of success, indicating hard work and personal achievement.
The journey towards owning a big house is challenging, requiring dedication and perseverance.
Every small step and room today contributes to the realization of a big home in the future.
Owning a big house is not solely about displaying wealth; it provides space for family growth and aspirations.
The aspiration for a big house involves creating room for family members to flourish and think bigger.
The road to a big house demands effort and determination.
A big house offers more space for personal growth and development.
The dream of a big house represents progress and personal fulfillment.
Owning a big house is not merely about showcasing wealth, it's about providing room for family wellbeing and future dreams.
The pursuit of a big house is intertwined with giving a family the space to expand and dream beyond current limitations.
Every small step taken today leads closer to the realization of owning a big house in the future.
Ultimately, a big house symbolizes an individual's hard work, accomplishment, and vision for the future.
Despite the challenges, persisting on the journey towards owning a big house is essential for personal growth and family welfare.
The desire for a big house embodies the aspiration for a better future and more opportunities.

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Fueled

404

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Engineering the Component Behind Fueled.com’s New 3D Motion Effects

Fueled.com aimed to create a modern, motion-rich design while maintaining performance.
They developed an animated 3D shape component using a light-weight approach instead of WebGL.
The article discusses the journey from initial ideas to using image-sequence solution for visual impact.
Insights into browser rendering limits, modern image formats, and design tools are shared.
Tools like CSS blend modes, Intersection Observer, and Motion animation library were used.
ChatGPT was used as a coding partner for rapid iteration and experimentation.
Full article is available on LinkedIn.
The post first appeared on Fueled's website.

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