Twelve Days of .NET: Day 6: Fiddler

This post is part of my 12 Days of .NET series. This is a (not terribly ambitious) series of posts on .NET topics that came up while I was working on a recent C# Web API project.

I can’t emphasize enough how useful Fiddler is for testing a REST API. My project is essentially a REST API calling another REST API, so Fiddler is doubly-useful for me. I can test my own API, and I can see what the external API is returning to me. I even went as far as buying Eric Lawrence’s Fiddler book. I’ve read about half the book so far, and I’ve learned a lot from it, both about Fiddler, and about HTTP in general.

I used to use curl for testing REST APIs, but Fiddler’s composer tab is much nicer. (Having said that, I’m still glad to hear that curl is going to be available in the standard Windows 10 install soon.)

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