The hottest Error Handling Substack posts right now

And their main takeaways
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Top Technology Topics

Latency is a silent killer.

System Design Classroom • 299 implied HN points • 16 May 24
🕹 Technology System Design Software Engineering Performance Tuning Error Handling
  1. Getting timeouts right is important. If you wait too long, your system slows down, but if you timeout too fast, you might miss a successful call.
  2. Circuit breakers help manage failures. They quickly stop requests to a failing service, allowing your system to recover faster.
  3. Bulkheads keep parts of your system separate. If one part fails, the others keep working, preventing a complete shutdown of the system.

Xmas decorations, part 3

Bite code! • 1467 implied HN points • 21 Jan 24
🕹 Technology Python Error Handling
  1. Decorators provide syntactic sugar for code reuse of callback processing.
  2. Popular usages for decorators include intercepting calls, registering functions, and enriching function behavior.
  3. Decorators can be combined and used creatively to enhance your code, but be mindful not to overdo it.

This will be easy

Bite code! • 1223 implied HN points • 08 Jul 23
🕹 Technology Programming Networking Error Handling Logging
  1. Making HTTP POST requests can have unexpected challenges, like dealing with network issues and corporate setups.
  2. Using ThreadExecutor and ThreadPoolExecutor in Python can help manage tasks efficiently, especially in scenarios like log aggregation.
  3. Error handling is crucial in programming, and sometimes unconventional solutions are needed to manage exceptions effectively.

React 19 Beta Release: A Quick Guide

Web Dev Explorer • 59 implied HN points • 28 Apr 24
🕹 Technology Error Handling
  1. React 19 Beta Release introduces new concepts like Actions to simplify state management and error handling in React applications.
  2. React 19 enhances form handling with features like useActionState and useOptimistic hooks, improving data submission processes and error management.
  3. New features in React 19 like useDeferredValue, Advanced Document Metadata Management, and Resource Loading APIs enhance performance and provide better control over rendering.
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Rust: future cannot be sent between threads safely

Art’s Substack • 39 implied HN points • 24 May 24
🕹 Technology Programming Concurrency Error Handling Development Tools
  1. In Rust, sending futures between threads safely can lead to compilation errors. This can happen when sharing mutable data across threads that must be protected with a Mutex.
  2. The issue with sending futures between threads safely is due to the fact that futures in Rust are required to implement the 'Send' trait. Problems arise when trying to hold a MutexGuard across an await, causing the future not to be Send.
  3. To resolve issues related to sending futures between threads safely in Rust, one solution is to explicitly introduce a scope to handle locking and unlocking of the MutexGuard around the await, ensuring that the future is 'Send'.

Daily bit(e) of C++ | Domain specific errors using std::error_code

Daily bit(e) of C++ • 78 implied HN points • 15 Jan 24
🕹 Technology Programming Error Handling
  1. To represent domain-specific error codes in C++, use std::error_code customization mechanism.
  2. The custom implementation involves an enum for error codes, an error category for text descriptions, and a mapping from enum type to category type.
  3. This customization allows for a more specialized and descriptive handling of errors in C++ programming.

Rust vs Python. Rust impl & final results

Art’s Substack • 19 implied HN points • 16 May 24
🕹 Technology Programming Benchmarking Error Handling
  1. Rust offers benefits like performance, reliability, and productivity, with tools like cargo, cargo-llvm-cov, and criterion.rs enhancing its capabilities.
  2. Understanding lifetimes in Rust helps prevent dangling references and ensures data integrity.
  3. Benchmark results show Rust outperforming Python dramatically in terms of speed, with optimizations like different memory allocators significantly impacting performance.

Rust: enum, boxed error and stack size mystery

Art’s Substack • 19 implied HN points • 15 May 24
🕹 Technology Programming Software Compiler Error Handling
  1. In Rust, errors are typically modeled using enums and can be streamlined using libraries like `thiserror` to reduce boilerplate.
  2. Boxing error types in Rust enums can help limit the maximum size of `Result<T>` and affect stack space usage, as illustrated in the example provided.
  3. Compiler optimizations and versions can significantly impact stack allocation for Rust functions, as seen in the comparison between Rust 1.74.0 and 1.75.0.

Do You Want to Remove "If" Statements From Your Java Code?

Weekend Developer • 19 implied HN points • 11 May 24
🕹 Technology Programming Refactoring Software Engineering Error Handling Testing
  1. To reduce reliance on 'if' statements in Java code, use guard statements at the beginning of methods or blocks to quickly exit when conditions aren't met.
  2. Consider using ternary operators as a concise way to replace 'if-else' statements within methods, but be cautious of overusing them for readability.
  3. Separate logic into reusable policy rules, encapsulating business rules into classes or methods, to promote code organization and maintainability.

You can't handle Errors

Burning the Midnight Coffee • 83 HN points • 13 Feb 24
🕹 Technology Programming Error Handling
  1. Faults in code lead to errors, which then cause failures in a program's behavior. Understanding this process is crucial for effective error handling.
  2. Handling an error means returning the program to a known, correct state, which usually involves restarting it in some way. Proper failure handling is key.
  3. Exceptions as both error handling and additional return values can lead to more faults and failures. It's important to define and address failures distinctly from errors.

Unit Testing with async/await

Jacob’s Tech Tavern • 1 HN point • 18 Jul 23
🕹 Technology Unit Testing Error Handling
  1. Unit Testing with async/await allows for writing robust and maintainable software using modern language features.
  2. Async tests focus on checking interactions with dependencies, successful function calls, and handling error states.
  3. By making code testable through dependency injection, it becomes cleaner and easier to reason about, with encapsulated logic and separated responsibilities.

Better approach to Error Handling in Power Automate as CoE Admin

Power Platform News • 0 implied HN points • 09 Jun 24
🕹 Technology Automation Error Handling
  1. In Power Automate, a new feature in the Power Platform enables better error handling and proactive management by CoE admins.
  2. When faced with limitations in the platform, such as unsupported triggers, admins can create alternative solutions like setting up recurring flows to monitor and notify about flow failures.
  3. Setting up automated processes to handle errors can streamline operations and improve the efficiency of CoE teams.