async await with foreach in c#

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How to use Async & Await with ForEach in C# — The Right Way

Mastering Asynchronous Loops in C#

Is It Vritra - SDE I
3 min readJan 24, 2025

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As senior .NET developers, we’ve all used async/await for handling asynchronous operations. It’s clean, intuitive, and improves code maintainability. However, when it comes to looping asynchronously, many developers affect performance without realizing it.

Why not let's break down the most efficient way to perform asynchronous iteration in C# !!

covering best practices, performance tips, and real-world scenarios

📝 Table of Contents

  • Understanding Asynchronous Iteration
  • Why Traditional Foreach Falls Short
  • Optimal Approaches for Async Loops
  • Returning Void
  • Returning Values
  • C# 8 Asynchronous Streams
  • Helpful Extensions
  • Conclusion

👀Understanding Asynchronous Iteration

When dealing with asynchronous operations inside a loop, the default instinct is to use an await within a foreach. However, this approach can lead to suboptimal performance as each iteration waits for the previous one to complete, leading to a sequential…

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Is It Vritra - SDE I
Is It Vritra - SDE I

Written by Is It Vritra - SDE I

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