public async Task DeleteItemsAsync <T>(List <string> hashKeys)
{
DocumentBatchWrite batchWrite = InternalTable.CreateBatchWrite();
hashKeys.ForEach(key => batchWrite.AddKeyToDelete(key));
await batchWrite.ExecuteAsync();
}
public async Task PutItemsAsync <T>(List <T> itemsToPut)
{
DocumentBatchWrite batchWrite = InternalTable.CreateBatchWrite();
itemsToPut.ForEach(item =>
{
batchWrite.AddDocumentToPut(GetDocument(item));
});
await batchWrite.ExecuteAsync();
}
public async Task InsertBatchItems(List <Profile> profiles)
{
try
{
DocumentBatchWrite request = _table.CreateBatchWrite();
foreach (var profile in profiles)
{
request.AddDocumentToPut(ConvertToDocument(profile));
}
await request.ExecuteAsync();
Console.WriteLine("Items created successfully");
}
catch (Exception ex)
{
Console.WriteLine(ex);
}
}
public async Task StoreEvents(List <MDBTimelineEvent> timelineEvents)
{
try
{
Table table = Table.LoadTable(client, "TimelineEvents");
DocumentBatchWrite batchWrite = table.CreateBatchWrite();
foreach (MDBTimelineEvent tlevent in timelineEvents)
{
batchWrite.AddDocumentToPut(tlevent.AsDynamoDocument());
}
await batchWrite.ExecuteAsync();
}
catch (Exception ex)
{
Console.WriteLine("StoreEvents ERROR: " + ex.Message);
throw ex;
}
}
public async Task InsertNewItems(List <Profile> profiles)
{
try
{
List <Document> documents = profiles.Select(ConvertToDocument).ToList();
DocumentBatchWrite batchWrite = _table.CreateBatchWrite();
foreach (var document in documents)
{
batchWrite.AddDocumentToPut(document);
}
await batchWrite.ExecuteAsync();
Console.WriteLine("Documents have been inserted successfully");
}
catch (AmazonDynamoDBException ex)
{
Console.WriteLine(ex);
}
catch (Exception ex)
{
Console.WriteLine(ex);
}
}
public async Task <IActionResult> Get([FromHeader] string key, [FromHeader] string payload)
{
try
{
return(Ok());
if (key != "enginekey")
{
return(BadRequest("bad"));
}
AmazonDynamoDBClient client = new AmazonDynamoDBClient();
Table table = Table.LoadTable(client, "OrderBook");
List <Document> docs = new List <Document>();
int bids = payload.IndexOf("bids");
for (int i = 0; i < payload.Length; i++)
{
if (payload[i] != '[')
{
continue;
}
Document doc = new Document();
string price = new string(""); string volume = new string("");
i += 1;
while (true && i < payload.Length)
{
if (payload[i] == ',')
{
i += 1; break;
}
price += payload[i];
i += 1;
}
while (true && i < payload.Length)
{
if (payload[i] == ']')
{
break;
}
volume += payload[i];
i += 1;
}
doc["Price"] = price;
doc["Volume"] = volume;
doc["Side"] = i < bids ? "Buy" : "Sell";
docs.Add(doc);
}
DocumentBatchWrite write = table.CreateBatchWrite();
foreach (Document doc in docs)
{
write.AddDocumentToPut(doc);
}
await write.ExecuteAsync();
return(Ok());
}
catch
{
return(BadRequest("something went wrong"));
}
}