public async Task AppendQueryToFileWorker(string query)
{
long records = 0;
using (var client = new HttpClient())
{
client.BaseAddress = new Uri(ServerUrl);
client.DefaultRequestHeaders.Add("Authorization", "Bearer " + FhirAuth.GetAuthenticationResult().AccessToken);
HttpResponseMessage getResult = getResult = await client.GetAsync(query);
JObject bundle = JObject.Parse(await getResult.Content.ReadAsStringAsync());
JArray entries = (JArray)bundle["entry"];
JArray links = (JArray)bundle["link"];
string nextQuery = "";
for (int i = 0; i < links.Count; i++)
{
string link_type = (string)(bundle["link"][i]["relation"]);
string link_url = (string)(bundle["link"][i]["url"]);
if (link_type == "next")
{
Uri nextUri = new Uri(link_url);
nextQuery = nextUri.PathAndQuery;
break;
}
}
if (!String.IsNullOrEmpty(nextQuery))
{
QueryQueue.Post(nextQuery);
}
if (entries != null)
{
for (int i = 0; i < entries.Count; i++)
{
string entry_json = (((JObject)entries[i])["resource"]).ToString(Formatting.None);
if (Anom != null)
{
entry_json = await Anom.AnonymizeDataAsync(entry_json);
}
AppendToFile(FileName, entry_json);
records++;
}
}
if (String.IsNullOrEmpty(nextQuery))
{
QueryQueue.Complete();
}
}
}
public async Task AppendQueryWorker(string query)
{
var randomGenerator = new Random();
using (var client = new HttpClient())
{
client.BaseAddress = new Uri(ServerUrl);
client.DefaultRequestHeaders.Add("Authorization", "Bearer " + FhirAuth.GetAuthenticationResult().AccessToken);
HttpResponseMessage getResult = getResult = await client.GetAsync(query);
JObject bundle = JObject.Parse(await getResult.Content.ReadAsStringAsync());
JArray entries = (JArray)bundle["entry"];
JArray links = (JArray)bundle["link"];
string nextQuery = "";
for (int i = 0; i < links.Count; i++)
{
string link_type = (string)(bundle["link"][i]["relation"]);
string link_url = (string)(bundle["link"][i]["url"]);
if (link_type == "next")
{
Uri nextUri = new Uri(link_url);
nextQuery = nextUri.PathAndQuery;
break;
}
}
if (!String.IsNullOrEmpty(nextQuery))
{
QueryQueue.Post(nextQuery);
}
if (entries != null)
{
for (int i = 0; i < entries.Count; i++)
{
JObject resource = (JObject)entries[i]["resource"];
string resourceType = resource["resourceType"].ToString();
string resourceId = resource["id"].ToString();
string deleteQuery = $"/{resourceType}/{resourceId}?hardDelete=true";
var pollyDelays =
new[]
{
TimeSpan.FromMilliseconds(2000 + randomGenerator.Next(50)),
TimeSpan.FromMilliseconds(3000 + randomGenerator.Next(50)),
TimeSpan.FromMilliseconds(5000 + randomGenerator.Next(50)),
TimeSpan.FromMilliseconds(8000 + randomGenerator.Next(50))
};
HttpResponseMessage deleteResult = await Policy
.HandleResult <HttpResponseMessage>(response => !response.IsSuccessStatusCode)
.WaitAndRetryAsync(pollyDelays, (result, timeSpan, retryCount, context) =>
{
Console.WriteLine($"Request failed with {result.Result.StatusCode}. Waiting {timeSpan} before next retry. Retry attempt {retryCount}");
})
.ExecuteAsync(() =>
{
return(client.DeleteAsync(deleteQuery));
});
if (!deleteResult.IsSuccessStatusCode)
{
Console.WriteLine("Delete failed: " + deleteQuery);
throw new Exception("Failed to delete resource");
}
else
{
Console.WriteLine("DELETE " + deleteQuery);
}
}
}
if (String.IsNullOrEmpty(nextQuery))
{
QueryQueue.Complete();
}
}
}
