public async Task <string> GetPdfUrl <T>(string templateText, T model, RotativaOptions rotativaOptions = null)
{
var rClient = new RotativaioClient(apiKey, apiUrl);
var html = BuildHtml <T>(templateText, model);
var switches = GetConvertOptions(rotativaOptions);
var pdfUrl = await rClient.GetPdfUrl(switches, html);
return(pdfUrl);
}
public async Task <Stream> GetPdfAsStream <T>(string templateText, T model, RotativaOptions rotativaOptions = null)
{
var pdfUrl = await GetPdfUrl <T>(templateText, model, rotativaOptions);
var pdf = await httpClient.GetAsync(pdfUrl);
var pdfStream = await pdf.Content.ReadAsStreamAsync();
return(pdfStream);
}
/// <summary>
/// Returns properties with OptionFlag attribute as one line that can be passed to wkhtmltopdf binary.
/// </summary>
/// <returns>Command line parameter that can be directly passed to wkhtmltopdf binary.</returns>
private string GetConvertOptions(RotativaOptions ro)
{
if (ro == null)
{
return(string.Empty);
}
var result = new StringBuilder();
if (ro.PageMargins != null)
{
result.Append(ro.PageMargins.ToString());
}
var fields = ro.GetType().GetProperties();
foreach (var fi in fields)
{
var of = fi.GetCustomAttributes(typeof(OptionFlag), true).FirstOrDefault() as OptionFlag;
if (of == null)
{
continue;
}
object value = fi.GetValue(ro, null);
if (value == null)
{
continue;
}
if (fi.PropertyType == typeof(Dictionary <string, string>))
{
var dictionary = (Dictionary <string, string>)value;
foreach (var d in dictionary)
{
result.AppendFormat(" {0} {1} {2}", of.Name, d.Key, d.Value);
}
}
else if (fi.PropertyType == typeof(bool))
{
if ((bool)value)
{
result.AppendFormat(CultureInfo.InvariantCulture, " {0}", of.Name);
}
}
else
{
result.AppendFormat(CultureInfo.InvariantCulture, " {0} {1}", of.Name, value);
}
}
var switches = result.ToString().Trim();
return(switches);
}
public async Task <Byte[]> GetPdfAsByteArray <T>(string templateText, T model, RotativaOptions rotativaOptions = null)
{
var pdfUrl = await GetPdfUrl <T>(templateText, model, rotativaOptions);
var pdf = await httpClient.GetAsync(pdfUrl);
var pdfBytes = await pdf.Content.ReadAsByteArrayAsync();
return(pdfBytes);
}