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ResourceSpace.Has.ResourcesOfType<ApiResponse>()
	.AtUri("artist/search?q={searchterm}&pagesize={pagesize}")

public class QueryParamLowerCaser : IPipelineContributor {
	public void Initialize(IPipeline pipelineRunner) {
		pipelineRunner.Notify(LowerCaseQueryParams)
			.Before<KnownStages.IUriMatching>();
	}
 
	public PipelineContinuation LowerCaseQueryParams(ICommunicationContext context) {
		var uri = context.Request.Uri;
		var newQuery = LowerCaseQueryString(uri.Query);
 
		context.Request.Uri = new Uri(uri.GetLeftPart(UriPartial.Path) + newQuery);
 
		return PipelineContinuation.Continue;
	}
 
	private static string LowerCaseQueryString(string queryString) {
		var queryParams = HttpUtility.ParseQueryString(queryString);
		var lowerCasedParams = new List<string>();
 
		foreach (string queryParam in queryParams) {
			lowerCasedParams.Add(queryParam.ToLower() + '=' + queryParams[queryParam]);
		}
 
		var newQuery = "?" + string.Join("&", lowerCasedParams);
		return newQuery;
	}
}

ResourceSpace.Uses.PipelineContributor<QueryParamLowerCaser>();

	public class QueryParamLowerCaser : IUriDecorator
	{
		public bool Parse(Uri uri, out Uri processedUri)
		{
			processedUri = LowerCaseQueryString(uri);
			return true;
		}
 
		private static Uri LowerCaseQueryString(Uri uri)
		{
			var queryParams = HttpUtility.ParseQueryString(uri.Query);
 
			var lowerCasedParams = new List<string>();
			foreach (string queryParam in queryParams)
			{
				if (queryParam != null)
					lowerCasedParams.Add(queryParam.ToLower() + '=' + queryParams[queryParam]);
			}
 
			var newQuery = "?" + string.Join("&", lowerCasedParams);
 
			return new Uri(uri.GetLeftPart(UriPartial.Path) + newQuery);
		}
 
		public void Apply() { }
	}