public async Task <IReadOnlyList <TopicDetail> > GetAllTopicsAsync()
{
var topics = new List <TopicDetail>();
var request = new ListTopicsRequest();
ListTopicsResponse response;
do
{
response = await _sns.ListTopicsAsync(request);
if (response.HttpStatusCode != HttpStatusCode.OK)
{
throw new InvalidOperationException($"Unable to list all topics.");
}
foreach (var topic in response.Topics)
{
var topicArn = new TopicArn(topic.TopicArn);
topics.Add(new TopicDetail
{
Attributes = await GetTopicAttributesAsync(topic.TopicArn),
Name = topicArn.TopicName,
Region = topicArn.Region
});
}
request.NextToken = response.NextToken;
} while (response.NextToken != null);
return(topics);
}
public Task <TopicDetail> GetTopicAsync(string topicName)
{
if (string.IsNullOrWhiteSpace(topicName))
{
throw new ArgumentException($"A non-null/empty '{topicName}' is required.", nameof(topicName));
}
return(getTopicAsync());
async Task <TopicDetail> getTopicAsync()
{
var topic = await _sns.FindTopicAsync(topicName);
if (topic == null)
{
return(null);
}
var topicArn = new TopicArn(topic.TopicArn);
return(new TopicDetail
{
Attributes = await GetTopicAttributesAsync(topic.TopicArn),
Name = topicArn.TopicName,
Region = topicArn.Region
});
}
}
