Parameter format issue with ASP.NET Web API controller

Question

I am watching this pluralsight demo video on Web Api, and he is using fiddler to pass in a parameter using Http Get with the syntax of controller/parameter

So he's using http://localhost:2405/api/values/5

5 Is the parameter he's passing in.

In my code, I have everything set up exactly the same way he does... with a routing template of {controller}/{id} and a controller method with a signature of

public string Get(string zipcode)

I can pass a parameter just fine with http://localhost:2405/api/values?zipcode=25252 but if I try passing in a paramter the way he does, like http://localhost:2405/api/values/25252 I get an error saying I do not have an action available to handle that request on the controller.

What is he doing right, that I'm doing wrong?

Ed Chapel · Accepted Answer · 2013-08-04 08:35:45Z

2

You need to change your routing template to {controller}/{zipcode} as the name of the parameter must match the name in the template.

answered Aug 4, 2013 at 8:35

Ed Chapel

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2 Comments

Cowman Over a year ago

Oh, duh! You know, I'm still learning this whole thing, so I thought the {id} field was some sort of keyword that is used by reflection, like {controller}. Thank you so much!

Ed Chapel Over a year ago

I agree. It's not always intuitive which things are keywords and which are conventional 'magic'.

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