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Keep on Mocking with a Key, Girrrrl

The author shares a story about testing a module against a third-party web API without leaking sensitive authentication tokens.
To ensure the module works as intended without requiring an active network connection, mocking the service is essential.
Different mocking approaches in Perl are discussed, with an emphasis on using LWP::UserAgent::Mockable for testing web services.
Tips are provided on handling authorization tokens securely, scrubbing sensitive data from mock files, and setting up Git commit hooks for automated checks.

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Dev

2.7k

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How to Troubleshoot Live Activities in Swift Apps

Setting up Live Activities in Swift apps can enhance user engagement but may encounter issues like not appearing in Notification Center or Dynamic Island.
Live Activities provide real-time updates on ongoing tasks in the app, and troubleshooting may be required when configuring different flavors of a SaaS app.
Common reasons for Live Activities not appearing include incorrect app group configuration, permissions, and background mode settings.
Troubleshooting steps involve checking entitlements, validating code implementation, ensuring background updates are enabled, testing on a physical device, verifying user notification permissions, and consulting console logs for insight.

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Javacodegeeks

325

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Micronaut Flyway Database Schema Migrations Example

Micronaut Flyway Database Schema Migrations provide a reliable solution for managing database schema changes in microservices architecture.
Micronaut is a JVM-based framework designed for building high-performance microservices and cloud-native applications.
Unlike traditional Java frameworks, Micronaut uses compile-time annotation processing for better performance.
Flyway is an open-source tool for version controlling database schemas, integrated with Micronaut.
Flyway executes migration scripts in a consistent order to update the database schema.
To use Flyway in a Micronaut project with PostgreSQL, Docker can be utilized to set up the database instance.
Dependencies for Flyway and PostgreSQL need to be added to the build.gradle file in a Micronaut project.
Configuration in application.yml file enables connection to the PostgreSQL database and activates Flyway migrations.
Flyway requires SQL migration scripts following a specific naming convention to apply changes to the database.
Implementing entities, repositories, and controllers in Micronaut allows interaction with the database using Flyway-managed migrations.

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Medium

370

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Your LLM Prompt Engineering Is Wrong: Why 90% of Developers Misunderstand AI Context Windows

Many developers, including the author, have misunderstood the functioning of context windows in LLMs, leading to inaccurate responses and generic outputs.
Correctly understanding context windows is crucial for AI applications to deliver accurate results and enhance user experience.
The traditional approach of loading context windows with information isn't as effective as previously thought.
The author proposes a more accurate understanding of context windows in LLMs, emphasizing the importance of information positioning and organization.
Implementing techniques like hierarchical retrieval systems and visual patterns can significantly improve LLM performance and response accuracy.
Context window design plays a critical role in the model's ability to process and utilize information effectively.
Attention interference and prompt formatting significantly impact the model's ability to retrieve and utilize information from the context window.
The article suggests techniques like 'semantic scaffolds' and 'context profiles' to address challenges in context utilization for different LLM models.
Building a more accurate mental model of how LLMs process information is crucial for enhancing the quality of applications built using these models.
Questioning assumptions and experimenting with new techniques in prompt engineering for LLMs can lead to surprising improvements in application performance.
The success of LLM applications lies in effective communication with the models, which requires understanding how they process information to deliver reliable outcomes.

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Dev

178

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The Role of AI in Humanity: Present and Future

AI is no longer a concept of science fiction but a reality influencing various industries like medicine, finance, education, and manufacturing.
Current AI applications include health diagnostics, financial trend prediction, personalized education, and factory logistics optimization.
In the future, AI might evolve into decision-makers with possibilities like AI-powered governance, autonomous legal systems, and predictive policymaking.
It is crucial for humans to establish ethical boundaries and control mechanisms in AI growth and development.
In the AI era, curated information hubs will play a significant role in providing reliable knowledge amidst the vast amount of data available.

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Dev

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Should You Quit Tech? A Reality Check for Burnt Out Devs

Tech industry is currently brutal with ongoing layoffs, projects being canceled, and increasing work pressure.
Burnout in tech can stem from various factors like toxic team dynamics, endless meetings, poor leadership, or unfulfilling work.
Despite the challenging market conditions, tech industry has historically bounced back and offers opportunities for career shifts within tech itself.
Deciding whether to quit tech requires introspection on factors like daily misery, feeling stuck, work-life balance, and motivation to continue.

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3 Likes

Medium

455

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6 AI Agents That Can Replace Your Jobs

Twitter operated more productively with fewer employees, releasing more features while having fewer staff.
Meta and Amazon underwent significant job cuts in 2023, yet their stock prices doubled and had successful years.
As AI automation advances in 2025, six AI agents are highlighted that have the potential to replace various job roles.
These AI agents include tools for creating ads, videos, finding influencers, writing reports, managing online presence, and handling SEO tasks.

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22 Likes

Medium

274

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Why File Formats Matter: A Beginner-Friendly Guide to JSON, XML, CSV, YAML, Parquet, and Markdown

File formats are crucial for structuring and organizing data for computers to understand, process, and exchange efficiently.
JSON is commonly used for data storage and exchange due to its clean and readable format, resembling JavaScript code.
XML is designed for data representation, utilizing tags in a tree-like structure, suitable for web services and enterprise applications.
CSV is ideal for storing tabular data in plain text, making it easy for data import/export and creating simple reports.
Other formats like YAML focus on human-friendliness with indentation and Markdown is useful for creating web content and documentation.

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16 Likes

Dev

406

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How to mass convert BMP to JPG (Tutorial)

BMP images are known for their simplicity and compatibility, stored in an uncompressed format leading to large file sizes.
Converting BMP images to JPG format reduces file size while maintaining image quality.
The tutorial guides on using Java with JDeli to mass convert BMP files to JPG effortlessly.
Options like configuration settings and command line conversion for bulk BMP to JPG conversion are also demonstrated.

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24 Likes

Hackernoon

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TypeScript Showdown: Type vs Interface — Why 'Type' Wins

In the TypeScript debate of 'TypeScript Type vs Interface,' 'Type' comes out as the winner due to its flexibility, expressive power, and alignment with modern practices.
Type and interface both define object shapes or function signatures, but type offers more versatility in describing unions, primitives, tuples, mapped types, and conditional types.
Type is safer and prevents accidental redefinitions, while interface supports declaration merging which can lead to hard-to-debug surprises.
Type can extend both types and interfaces, making it more consistent for various scenarios, especially in functional and React patterns.
Although type is generally preferred, interface still holds value in public APIs, libraries, OOP patterns, and classes that implement contracts.
In OOP-heavy codebases, interface is favored for its semantic clarity and support for extension via extends or declaration merging.
Type in TypeScript excels in handling complex scenarios like unions, tuples, mapped and conditional types, making it a preferred choice in most cases.
Unless exposing a public OOP-style API or requiring declaration merging, it is recommended to stick with type for better consistency and clarity in codebases.
For more insights on TypeScript practices, the article suggests exploring topics like asynchronous JavaScript, overloading vs overriding, and effective use of 'as const' in TypeScript.
Overall, the article advocates for the usage of 'type' over 'interface' in TypeScript codebases, emphasizing its superior handling of various type scenarios and prevention of unexpected behaviors.

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Nordicapis

288

10+ Data Regulations All API Developers Should Know About

Businesses can no longer prioritize data harvesting over data privacy, with the rise of data regulations globally.
Developers face potential backlash, hefty fines, and legal action for disregarding data privacy legislation, as APIs are increasingly targeted by hackers.
Instances like the massive data scrape from LinkedIn's API and Facebook's API vulnerability highlight the risks of non-compliance.
Compliance is crucial for data protection, trust preservation, and avoiding regulatory consequences in the evolving realm of data regulation.
Key regulations include GDPR, CCPA, HIPAA, FERPA, PSD2, LGPD, PIPEDA, PIPL, DPDP, covering aspects like data consent, security, and breach notification.
API developers must comply with various regulations to handle personal data lawfully and securely, even outside their jurisdiction.
The ever-expanding landscape of data regulation includes upcoming laws in different countries and regions, emphasizing user consent and safeguarding.
Maintaining compliance necessitates ongoing adaptation to changing regulations and implementing best practices in API development.
Legislation aims at similar goals across various regions, focusing on user consent, limiting data exposure, and safeguarding against breaches.
Adhering to encryption, proper authorization, least privilege principles, and minimizing data exposure aids in meeting compliance requirements.

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17 Likes

Hackernoon

329

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Cracking the Code on Blockchain Security: A Plain-English Primer

Blockchain is a distributed digital ledger that ensures tamper-evident and irreversible transactions.
Blockchain is secure due to immutability via hashing and chaining blocks together to invalidate any tampering attempts.
Consensus mechanisms like Proof of Work ensure network security by requiring computational work for block authentication.
Blockchain security risks include smart contract vulnerabilities, phishing attacks, and the importance of user safety measures.

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19 Likes

Hackernoon

114

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Lock Down Your Wi-Fi: 2025’s Home Network Security Checklist

Securing your home network in 2025 involves updating default router settings such as password and network name.
Using strong passwords with WPA3 encryption is recommended to prevent hacking and eavesdropping.
Keeping your router's firmware updated is crucial to prevent known security vulnerabilities.
Setting up a separate guest network can isolate guests from your main network for added security.
Ensuring all smart home devices have secure passwords, updated firmware, and connecting them to the guest network can enhance security.
Using a strong firewall, enabling device-level security, and employing DNS filters or parental controls are essential security measures.
Disabling unused features like UPnP, WPS, and remote management can reduce the risk of attacks.
Employing network monitoring tools and VPNs on public networks are recommended for monitoring and encrypting traffic.
Backing up critical data periodically is advised to protect against data loss from ransomware or hardware failure.
Overall, developing good security habits like regular checks, software updates, and strong passwords is key to a secure home network.

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6 Likes

Hackernoon

242

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Hack Your App Before Hackers Do: 2025's Mobile Pentesting Playbook

The handbook provides a step-by-step tutorial on pentesting mobile apps in 2025, including tools setup, information gathering, static analysis, dynamic analysis, API testing, local data storage analysis, reverse engineering, code injection, and reporting.
Tools like ADB, JADX, APKTool, MobSF, Burp Suite, and Frida are recommended for various stages of mobile app pentesting.
Various techniques including API call interception, SSL pinning bypass, dynamic testing, and API security testing using tools like Curl and Burp Suite are covered.
The importance of organized reporting following OWASP MASVS standards, documenting findings with tools like Dradis or Faraday, and common mobile vulnerabilities such as insecure storage, hardcoded secrets, and code injection are highlighted.

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14 Likes

Hackernoon

302

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Argon2 in Practice: How to Implement Secure Password Hashing in Your Application

Argon2 is a memory-hard password hashing algorithm designed to enhance security by using large amounts of memory while hashing, making it difficult for attackers to crack passwords.
Argon2 outshines older algorithms like bcrypt and PBKDF2 by offering memory-hardness, tunable parameters, and defense-in-depth against various attacks.
Implementing Argon2 involves choosing from its three variants - Argon2d, Argon2i, and Argon2id - based on specific use cases and requirements.
Selecting the appropriate Argon2 library for your programming language is crucial to ensure a secure and efficient implementation.
The implementation process includes steps like generating a cryptographically secure salt, setting up Argon2 parameters, and calling the Argon2 hash function.
Verifying passwords securely involves matching parameters and salts to hash the plain password and comparing the resulting hash with the stored hash using constant-time comparison.
Best practices for implementing Argon2 include not storing raw parameters separately, benchmarking with real production hardware, evolving parameters over time, and setting a maximum password length.
Testing and validating your Argon2 implementation involves conducting basic unit tests, stress testing for performance and memory consumption, and being aware of common testing pitfalls.
Security is an ongoing process, and it's essential to stay updated on security best practices and evaluate your Argon2 implementation periodically for adjustments.
For further resources on Argon2 and password security, exploring official documentation, cryptographic tools, and resources like OWASP can provide valuable insights.

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