ServiceStack.RestRoute.Apply C# (CSharp) Method

        public RouteResolutionResult Apply(object request, string httpMethod)
        {
            if (!this.IsValid)
            {
                return RouteResolutionResult.Error(this, this.ErrorMsg);
            }

            if (HttpMethods != null && HttpMethods.Length != 0 && httpMethod != null && !HttpMethods.Contains(httpMethod) && !HttpMethods.Contains("ANY"))
            {
                return RouteResolutionResult.Error(this,
                    $"Allowed HTTP methods '{HttpMethods.Join(", ")}' does not support the specified '{httpMethod}' method.");
            }

            var uri = this.Path;

            var unmatchedVariables = new List<string>();
            foreach (var variable in this.variablesMap)
            {
                var property = variable.Value;
                var value = property.GetValue(request);
                var isWildCard = variable.Key.EndsWith("*");
                if (value == null && !isWildCard)
                {
                    unmatchedVariables.Add(variable.Key);
                    continue;
                }

                var variableValue = FormatVariable(value);
                uri = uri.Replace(VariablePrefix + variable.Key + VariablePostfix, variableValue);
            }

            if (unmatchedVariables.Any())
            {
                var errMsg = "Could not match following variables: " + Join(",", unmatchedVariables.ToArray());
                return RouteResolutionResult.Error(this, errMsg);
            }

            return RouteResolutionResult.Success(this, uri);
        }