public static FormattedRoute Format(Route route, object[] arguments = null, IEnumerable <KeyValuePair <string, object> > queryParameters = null)
{
var formatter = new RouteFormatter();
var builder = new StringBuilder();
// We use the formatter with string.Format() and it'll collect all encountered parameters with their names.
builder.AppendFormat(formatter, route.Path, arguments ?? Array.Empty <object>());
if (queryParameters != null)
{
var first = true;
foreach (var parameter in queryParameters)
{
if (string.IsNullOrWhiteSpace(parameter.Key))
{
throw new ArgumentException("Query parameters must not contain null or whitespace keys.");
}
var value = parameter.Value;
if (value == null)
{
throw new ArgumentException("Query parameters must not contain null values.");
}
builder.Append(first ? '?' : '&');
builder.Append(parameter.Key);
builder.Append('=');
if (value is IEnumerable enumerable and not string)
{
builder.AppendJoin(',', enumerable.Cast <object>());
}
else
{
builder.Append(Uri.EscapeDataString(value.ToString()));
}
first = false;
}
public static FormattedRoute Format(this Route route, object[] arguments = null, IEnumerable <KeyValuePair <string, object> > queryParameters = null) => RouteFormatter.Format(route, arguments, queryParameters);