Regex in Route attribute - RESTful API ASP.NET Web API

Question

I\'ve got a problem with regular expressions in Route attribute. I\'d like to create RESTful API, where you can specify start date and end date in URL to filter results. Wha

Answer 1

For nullable second parameter, write your route template as

[Route("api/recommendations/date/{startDate:datetime:regex(\\d{2}-\\d{2}-\\d{4})}/{endDate:datetime:regex(\\d{2}-\\d{2}-\\d{4})?}")]

And you should provide with a default value for nullable parameter

public IEnumerable<Recommendation> GetRecommendationByDate(DateTime startDate, DateTime? endDate = null)

For slashes, slash is used to separate url segments, which means one single segment can't contain slash unless they are encoded.