Polly
Polly is a .NET resilience and transient-fault-handling library that allows developers to express policies such as Retry, Circuit Breaker, Timeout, Bulkhead Isolation, and Fallback in a fluent and thread-safe manner. From version 6.0.1, Polly targets .NET Standard 1.1 and 2.0+. (by App-vNext)
TypeScript
TypeScript is a superset of JavaScript that compiles to clean JavaScript output. (by microsoft)
| Polly | TypeScript | |
|---|---|---|
| 61 | 1,508 | |
| 14,192 | 109,210 | |
| 0.3% | 0.5% | |
| 9.6 | 9.4 | |
| 3 days ago | 6 days ago | |
| C# | TypeScript | |
| BSD 3-clause "New" or "Revised" License | Apache License 2.0 |
The number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
Polly
Posts with mentions or reviews of Polly.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2025-12-19.
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Cรณmo manejar fallos transitorios en .NET con Polly y ResiliencePipelineBuilder
Polly - repositorio oficial
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How to Add Token Swaps to C# .NET Backends
The swap API may return UPSTREAM_ERROR (502) during transient routing failures or RATE_LIMITED (429) when exceeding approximately 30 requests per minute. Use Polly or the built-in Microsoft.Extensions.Http.Resilience package in .NET 8 for production-grade retry policies.
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Implementing the Retry Pattern Using Polly in .NET Applications published
๐ Official Polly Documentation ๐ Microsoft's guide on HTTP resilience with Polly
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Preparing for the IETF RateLimit Header Standard in .NET
If you're using Polly for resilience, there's a separate integration package:
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Benchmark: How to use C# Parallel.ForEachAsync for 3x faster bulk file downloading time
The file downloading logic is wrapped in a Polly AsyncRetryPolicy and is essentially 3 lines (20โ22).
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How To Implement Retries and Resilience Patterns With Polly and Microsoft Resilience
Polly
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Tripping the circuit
This is probably one of the most useful "cloud" patterns out there and it is fairly easy to implement. There are great articles and implementations, like Polly, already on the internet about this pattern so why another one?
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Implement Circuit Breaker using Polly in .Net Core 8
Polly Documentation: Polly Official Site Circuit Breaker Design Pattern: Microsoft Learn Microservices Best Practices: Microservices on .NET
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Designing HTTP API clients in .NET
Custom HTTP handlers are well known as a mechanism to manage cross-cutting concerns around HTTP requests. The calling application has control over the HTTP handler pipeline, so it can be reconfigured, reordered, or even rebuilt from scratch. Decorating a client with a Token Management Handler or a custom Polly policy is easy... assuming the client accepts an HttpClient parameter in its constructor, and you haven't messed with the natural order of things by obstructing the client customization in some way (I really don't want to show how).
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The Retry Pattern and Retry Storm Anti-pattern
In our applications, we should wrap all requests to remote services in code that implements a retry policy that follows one of the strategies I listed earlier. If you are a .NET developer like myself, you may be familiar with the Polly library. Golang has a library called Retry, and there are numerous third-party libraries for Python and Java.
TypeScript
Posts with mentions or reviews of TypeScript.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2026-06-02.
- Scarab Diagnostic Suite Field Test #016: Microsoft/TypeScript Auto-Import Package Boundary
- Docker, Node, and Electron Walked Into My Terminal. So I Built a 3.5MB App to Kick Them All Out.
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TypeScript's number type is a lie
Supporting operator overloading is part of the linked TS issue [1]. But I'm more curious: why did operator overloading in ES6 itself [2] die?
[1] https://github.com/microsoft/TypeScript/issues/42218
[2] https://github.com/tc39/proposal-operator-overloading
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How to Build Type-Safe Form Handlers Using TypeScript Utility Types
The TypeScript handbook covers Partial, Required, Pick, and keyof with their full type definitions. React documentation covers useState typing patterns. MDN Web Docs is a useful reference for the underlying JavaScript form event handling. For a reference covering all built-in utility types with production patterns for API layers, form handling, and configuration objects, see this guide to TypeScript utility types at TypeScript Utility Types: Practical Code Snippets and Patterns.
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I Published My First npm Package โ Here's Everything I Wish I Knew
# My Awesome Package [](https://www.npmjs.com/package/@armorbreak/my-awesome-package) [](https://opensource.org/licenses/MIT) [](https://www.typescriptlang.org/) > A brief tagline that explains what this does in one sentence. ## Installation \`\`\`bash npm install @armorbreak/my-awesome-package \`\`\` ## Quick Start \`\`\`typescript import { formatList, truncate } from '@armorbreak/my-awesome-package'; console.log(formatList(['apple', 'banana', 'cherry'])); // => 'apple, banana, and cherry' console.log(truncate('This is very long text', 10)); // => 'This is...' \`\`\` ## API Reference ### \`formatList(items, options?)\` Formats an array into a human-readable string. | Parameter | Type | Default | |-----------|------|---------| | \`items\` | \`string[]\` | (required) | | \`options.prefix\` | \`string\` | \`''\` | | \`options.separator\` | \`string\` | \`', '\` | | \`options.maxLength\` | \`number\` | \`Infinity\` | ### \`truncate(text, maxLength, suffix?)\` Truncates text to fit within a character limit. ## Contributing PRs welcome! Please read the [contributing guidelines](CONTRIBUTING.md). ## License MIT ยฉ [Your Name](https://github.com/yourusername)
- ๐ฎ PRISM - AI-Powered Edge Orchestration & Distributed Inference
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Codemod for ignoring lint errors
Meet my new codemod, ignore-lint-errors. It helps us ignore lint errors from eslint, stylelint, and typescript (glint for Ember projects).
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7 Free AI Coding Tools Worth Adding to Your Development Workflow
For teams using TypeScript, adding strict TypeScript checks alongside ESLint catches the type-related issues that AI-generated code is most prone to, particularly around null handling and return type precision.
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How to Set Up Pre-Commit Hooks for Teams Using AI Coding Assistants
TypeScript type errors from AI suggestions are common, especially when the tool generates code that interfaces with an existing typed module it did not see in full context.
- It Might Already Be Too Late to Fix This
What are some alternatives?
When comparing Polly and TypeScript you can also consider the following projects:
MediatR - Simple, unambitious mediator implementation in .NET
zod - TypeScript-first schema validation with static type inference
FluentValidation - A popular .NET validation library for building strongly-typed validation rules.
Tailwind CSS - A utility-first CSS framework for rapid UI development.
CsvHelper - Library to help reading and writing CSV files
Flutter - Flutter makes it easy and fast to build beautiful apps for mobile and beyond