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ProgrammingDEV Community ·

Open-source project aims to simplify AI integration with existing APIs

A developer is creating an open-source project to simplify connecting AI assistants to existing company APIs. The project helps build integrations that allow AI applications like Claude to interact with APIs for functions such as checking support tickets or weather data. It consists of three components: a harness for running the MCP server, integration files that define API tools, and a builder agent that creates these integrations. The builder reads API specifications and generates the necessary code, which users can then review and enable for their AI systems.

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ProgrammingDEV Community ·

Customer repurposes trial feature as simple referral reward system

A customer requested a referral reward that would give a free month of service, skipping the next payment entirely. The developers initially considered building a new system to accommodate this request. However, they realized their existing Subscription API's trialEnd parameter could be repurposed to grant a month of free access. By simply extending the trialEnd date, they created a straightforward referral reward without new code. This demonstrates how flexible infrastructure features can support unanticipated business models.

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ProgrammingDEV Community ·

Blue Prism Developer exam structure, objectives, and time allocation detailed

The Blue Prism Certified Developer exam (DEV01) consists of 60 questions to be completed within 75 minutes. A passing score is a scaled 600 out of 800. The exam focuses heavily on two key areas: Object Development and Process Development, which together constitute 70% of the content. The test is intended for developers and analysts who build and configure Blue Prism automations. While no formal prerequisites exist, hands-on experience and prior training are strongly recommended.

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ProgrammingDEV Community ·

Android System Design Guide Explains Architecture Beyond UI Development

The DEV Community published a guide explaining Android system design for developers. It states that modern app development requires planning for architecture, scalability, security, and performance, not just user interfaces. The guide details how a well-designed system must handle scenarios like offline use, slow APIs, and growing data. It presents a layered architectural approach, separating presentation, domain, data, and platform responsibilities.

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ProgrammingDEV Community ·

Guide advocates for precise event tracking plans to answer product questions

A guide on DEV Community argues that generic analytics events often fail to answer specific business questions. It recommends creating a formal event tracking plan before implementing instrumentation. Such a plan defines precise event triggers, completion criteria, user identity rules, and data properties. This method, illustrated with a SaaS signup example, is presented as tool-agnostic and applicable to any analytics platform. The goal is to ensure metrics accurately reflect product outcomes that the system can confirm.

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ProgrammingDEV Community ·

Tutorial: Build an Audiobook Generator Using ElevenLabs API

A guide details how to programmatically create an audiobook using the ElevenLabs text-to-speech API. The process involves converting plain-text chapters into audio files via API calls and then merging them. Required tools include Python, an ElevenLabs API key, and the ffmpeg software for audio concatenation. The resulting script is reusable for authors, services, or hobbyists to generate audio versions of written content.

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ProgrammingDEV Community ·

Tech article warns against misinterpreting carrier shipping timestamps

A developer article warns that using JavaScript to localize carrier-provided package scan timestamps can create false delivery times. The article explains that carriers often publish only a local wall-clock time without a timezone offset, making true conversion impossible. Converting these timestamps as if they are UTC and then displaying them in a user's local timezone invents times that were never recorded by the carrier. The author advises developers to display the raw timestamp data as text and label its source instead of converting it. The article also cautions against assuming midnight for scans that lack a specific time of day, as a missing time is meaningful data.

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ProgrammingDEV Community ·

Experts advise seeking self-assessment before offering feedback in work reviews.

A management article recommends asking colleagues for their own assessment after a work presentation, like a design review, before offering feedback. This approach is considered effective because individuals often already identify their main areas for improvement. It also reveals the presenter's specific concerns, which may differ from the observer's notes. The method helps tailor the feedback conversation to be more relevant and constructive, ultimately fostering a learning environment over a judgmental one.

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ProgrammingDEV Community ·

Database migration order blunder caused production error for billing team

Two billing team developers created separate database migrations in the same week, with the second one being deployed first. A previously altered setting in the Flyway migration tool, meant to be temporary, caused the first migration to be silently skipped when it was deployed later. This led to a production error sixteen days later when a customer tried to use the feature dependent on the missing database column. The team has now fixed the tool setting and implemented new safeguards, including timestamp-based versioning and automated checks after deployments.

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ProgrammingDEV Community ·

Faulty Delivery Report Penalized Rural Depots Due to Poor Signal

A logistics company's daily performance report was built at 5 AM from digital proof-of-delivery records. Two rural depots consistently scored poorly, leading to a manager being placed on an improvement plan. The issue was not driver performance but poor mobile signal, which delayed data transmission from handheld devices until vans returned to the depot. The company updated its system to distinguish between delivery time and data receipt time, correcting the reports and exonerating the rural depots.

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ProgrammingDEV Community ·

Developer critiques enterprise QR code pricing, launches free browser-based alternative

A developer criticizes enterprise QR code generator platforms for practices like charging high annual fees and locking features like vector downloads behind expensive paywalls. In response, they built a free, client-side tool called CreateMeQR that offers 37 different format options, including WiFi configuration and contact cards. The suite operates entirely in a user's browser, providing features like design customization and production-grade vector downloads without ongoing costs. The tool is positioned as an alternative to services that rely on cloud infrastructure and recurring fees.

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ProgrammingDEV Community ·

Developer fixes payment API timeouts using retry logic and idempotency keys

A developer resolved an intermittent 30-second timeout issue in a client's ASP.NET Core API that called a third-party payment processor. The solution implemented a Polly retry policy with short, fixed delays to handle transient latency spikes. Idempotency keys were added to each payment request to prevent duplicate transactions during retries. Permanent failures were logged to a dead-letter queue for manual review instead of being discarded.

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ProgrammingDEV Community ·

How a URL Leads to a Webpage: Behind the Browser's Journey

When a user enters a URL, the browser first parses it to identify the protocol, domain, and resource path. It then performs a DNS lookup to translate the domain name into a server IP address, often using cached results to speed up the process. Next, the browser establishes a secure TCP connection and completes a TLS handshake for HTTPS URLs. Finally, it sends an HTTP request to the server and awaits the response to render the webpage.

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ProgrammingDEV Community ·

First-time open source contributors advised to start small and follow project protocols.

The article advises new contributors to begin with minor fixes like documentation errors. It notes that maintainers are typically volunteers who appreciate small, careful contributions. The author recommends reading contributing guides and reviewing recent pull requests to understand project norms. Contributors are encouraged to open an issue for larger changes to avoid wasted effort. The piece concludes that even a merged minor fix can significantly change a developer's perspective.

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ProgrammingDEV Community ·

How programming languages implement atomic operations from runtime down to CPU hardware

This technical article traces how atomic operations in programming languages are implemented through multiple layers down to hardware. It examines implementations in Java, Go, and CPython, showing how language-level atomic APIs map to runtime systems and CPU instructions. The analysis focuses on how operations like atomic addition and compare-and-swap achieve indivisibility through CPU features like LOCK prefixes on x86-64. The implementation path involves language APIs, compiler/runtime systems, and ultimately CPU atomic instructions and memory ordering constraints.

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ProgrammingDEV Community ·

Unicode change in HR system causes accidental account terminations

A company's identity synchronization system incorrectly disabled the accounts of 23 employees on a Monday in April. The issue occurred after the HR system's vendor updated its API platform over the weekend, which changed how accented characters were encoded. The system's matching logic, based on names and birthdates, failed because the Unicode representation of characters like 'é' had changed. The affected accounts were manually restored, and the company has since updated its processes to use stable employee IDs and normalize text data.

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ProgrammingDEV Community ·

New ARGOS Model Assesses Coastal Exposure on Kefalonia Beaches

The ARGOS project has launched a marine layer that provides exposure scores for fourteen beaches on Kefalonia, Greece. The model calculates these scores using offshore wave and current data from the Copernicus Marine Service, updated twice daily. It specifically analyzed Myrtos Beach, logging a high exposure score based on conditions several kilometers offshore. The system is designed as a directional, screening-level assessment and is not a real-time, lifeguard-grade safety forecast. The model's initial results are currently unvalidated due to a lack of local wave buoys for direct comparison.

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ProgrammingDEV Community ·

Compound V3 security report shows $1.5B TVL with high-medium liquidity risk

A security report dated October 1, 2026, analyzes the Compound V3 decentralized finance protocol. The report states the protocol holds approximately $1.5 billion in total value locked across Ethereum and its Layer 2 networks. It finds that while TVL grew 38% year-over-year, significant risks exist due to high collateral concentration in a few assets. The report assigns a high-medium liquidity risk score of 7 out of 10, citing concerns over potential liquidation cascades and oracle manipulation.

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ProgrammingDEV Community ·

Study breaks down hidden costs of evaluating AI model performance in production

Arize AI outlines a model calculating the hidden costs of evaluating AI systems in production, involving traffic volume, sampling rates, and human review. Industry anecdotes suggest evaluation costs can reach 10 times the baseline agent workload, though no universal benchmark exists. Research from τ-bench shows reliability testing requires multiple rollouts, with costs adding up per trial. The analysis recommends implementing deterministic checks first, then sampled AI judges, with human review reserved for high-consequence uncertainties.

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ProgrammingDEV Community ·

Developer creates SQL Server data recovery tool without needing prior CDC setup

A developer built a tool called LogCarver that recovers deleted SQL Server rows without requiring Change Data Capture or auditing features to be pre-enabled. The tool works by directly reading and reverse-engineering SQL Server's undocumented transaction log function, fn_dblog. During testing, the developer discovered and fixed critical bugs, including one that silently excluded data from heap tables and another that mishandled tables with extra indexes. The tool currently supports several common data types but has some known limitations, such as handling of TRUNCATE operations.

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