private static async Task <string> BuildAtomFeed(
DateTimeOffset lastFeedUpdate,
PagedQueryable <PostalInformationSyndicationQueryResult> pagedPostalInfoItems,
IOptions <ResponseOptions> responseOptions,
IConfiguration configuration)
{
var sw = new StringWriterWithEncoding(Encoding.UTF8);
using (var xmlWriter = XmlWriter.Create(sw, new XmlWriterSettings {
Async = true, Indent = true, Encoding = sw.Encoding
}))
{
var formatter = new AtomFormatter(null, xmlWriter.Settings)
{
UseCDATA = true
};
var writer = new AtomFeedWriter(xmlWriter, null, formatter);
var syndicationConfiguration = configuration.GetSection("Syndication");
var atomFeedConfig = AtomFeedConfigurationBuilder.CreateFrom(syndicationConfiguration, lastFeedUpdate);
await writer.WriteDefaultMetadata(atomFeedConfig);
var postalInfos = pagedPostalInfoItems.Items.ToList();
var nextFrom = postalInfos.Any()
? postalInfos.Max(x => x.Position) + 1
: (long?)null;
var nextUri = BuildNextSyncUri(pagedPostalInfoItems.PaginationInfo.Limit, nextFrom, syndicationConfiguration["NextUri"]);
if (nextUri != null)
{
await writer.Write(new SyndicationLink(nextUri, GrArAtomLinkTypes.Next));
}
foreach (var postalInfo in postalInfos)
{
await writer.WritePostalInfo(responseOptions, formatter, syndicationConfiguration["Category"], postalInfo);
}
xmlWriter.Flush();
}
return(sw.ToString());
}
private static async Task <string> BuildAtomFeed(
PagedQueryable <PostalInformationSyndicationQueryResult> pagedPostalInfoItems,
IOptions <ResponseOptions> responseOptions,
IConfiguration configuration)
{
var sw = new StringWriterWithEncoding(Encoding.UTF8);
using (var xmlWriter = XmlWriter.Create(sw, new XmlWriterSettings {
Async = true, Indent = true, Encoding = sw.Encoding
}))
{
var formatter = new AtomFormatter(null, xmlWriter.Settings)
{
UseCDATA = true
};
var writer = new AtomFeedWriter(xmlWriter, null, formatter);
var syndicationConfiguration = configuration.GetSection("Syndication");
await writer.WriteDefaultMetadata(
syndicationConfiguration["Id"],
syndicationConfiguration["Title"],
Assembly.GetEntryAssembly().GetName().Version.ToString(),
new Uri(syndicationConfiguration["Self"]),
syndicationConfiguration.GetSection("Related").GetChildren().Select(c => c.Value).ToArray());
var nextUri = BuildVolgendeUri(pagedPostalInfoItems.PaginationInfo, syndicationConfiguration["NextUri"]);
if (nextUri != null)
{
await writer.Write(new SyndicationLink(nextUri, GrArAtomLinkTypes.Next));
}
foreach (var postalInfo in pagedPostalInfoItems.Items)
{
await writer.WritePostalInfo(responseOptions, formatter, syndicationConfiguration["Category"], postalInfo);
}
xmlWriter.Flush();
}
return(sw.ToString());
}