Web API Routing Conflicts

Question

FYI, I have no custom routing, no usage of MapHttpRoute.

My Web API controller is as follows:

[RoutePrefix("api/stat")] public class StatController : ApiController

In that controller I has these methods:

 [Route("{statType}")] public StatState GetCurrentStat(string statType, UserInfo userInfo) [Route("getAllAccount")] public Dictionary<string, StatState> GetAllAccountCurrentStat(UserInfo userInfo) [Route("getScoreHistory")] public StatHistory GetStatAccountScoreHistory(string statType, UserInfo userInfo)

An HTTP GET call with this url: /api/stat/getAllAccount correctly maps to:

 [Route("getAllAccount")] public Dictionary<string, StatState> GetAllAccountCurrentStat(UserInfo userInfo)

An HTTP GET call with this url: /api/stat/getScoreHistory INCORRECTLY maps to:

[Route("{statType}")] public StatState GetCurrentStat(string statType, UserInfo userInfo)

How do I get /api/stat/getScoreHistory to map correctly and why does /api/stat/getAllAccount do as I expected it to?

Timothy Shields · Accepted Answer · 2015-04-24 22:21:46Z

The presence of the statType parameter in the definition of your third endpoint but not in your /api/stat/getScoreHistory URL means that the first of your three endpoints is the best match.

You need to remove the extraneous statType parameter from your last endpoint:

[Route("getScoreHistory")] public StatHistory GetStatAccountScoreHistory(UserInfo userInfo)

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