API Controller with custom action

Question

I need to have a custom action for my api controller like api/{controller}/{action}/{id}

This is my config

config.Routes.MapHttpRoute(
    name: "DefaultMethodApi",
    routeTemplate: "api/{controller}/{id}",
    defaults: new { id = RouteParameter.Optional }
);

config.Routes.MapHttpRoute(
    name: "ApiByAction",
    routeTemplate: "api/{controller}/{action}/{id}",
    defaults: new { action = "Browse", id = RouteParameter.Optional }
);

This hit the default route /api/dropzone/1 But i try to hit /api/dropzone/browse/1 by the "ApiByAction" configuration, but it doesnt work.

Darin Dimitrov · Accepted Answer · 2013-02-16 22:55:26Z

6

The order of your route definitions is important, make sure you respect it, because they are evaluated in the same order in which you declared them:

config.Routes.MapHttpRoute(
    name: "ApiByAction",
    routeTemplate: "api/{controller}/{action}/{id}",
    defaults: new { id = RouteParameter.Optional },
    constraints: new { action = @"^(?!\d)[a-z0-9]+$" }
);

config.Routes.MapHttpRoute(
    name: "DefaultMethodApi",
    routeTemplate: "api/{controller}/{id}",
    defaults: new { id = RouteParameter.Optional }
);

Also notice that you might need to specify a constraint for the {action} token in the first route definition.

edited Feb 16, 2013 at 22:55

answered Feb 16, 2013 at 18:14

Darin Dimitrov

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2 Comments

Nils Anders Over a year ago

Sorry, this brokes the default route. The /api/{action}/{id} doesnt work.

Darin Dimitrov Over a year ago

You are right. You will have to specify a constraint for the {action} token in your first route definition. I have updated my answer to illustrate that. Here the action name cannot start with a number and can contain letters or numbers only and it has at least one character length.

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