public async Task FSWrite()
{
try
{
FirestoreTestUtils.ColoredConsoleWrite(ConsoleColor.Green, "\n:: Streaming Writes to a Document ::\n");
FirestoreTestUtils.ColoredConsoleWrite(ConsoleColor.White, "\nEnter Document Id: ");
String docId = Console.ReadLine();
FirestoreTestUtils.ColoredConsoleWrite(ConsoleColor.Green, "\nStreaming writes to ");
FirestoreTestUtils.ColoredConsoleWrite(ConsoleColor.White, docId);
FirestoreTestUtils.ColoredConsoleWrite(ConsoleColor.Green, "...\n");
Document updatedDoc = GetDocument(docId);
MapField <string, Value> fields;
if (updatedDoc == null)
{
updatedDoc = new Document();
updatedDoc.Name = Parent + "/documents/GrpcTestData/" + docId;
fields = new MapField <string, Value>();
}
else
{
FirestoreTestUtils.ColoredConsoleWrite(ConsoleColor.White, "\nAvailable fields in this document to update:\n");
Utils.ProcessFields(updatedDoc);
fields = updatedDoc.Fields;
}
String streamId = "";
Google.Protobuf.ByteString streamToken = null;
using (var writeCall = FsClient.Write())
{
var writeRequest = new WriteRequest();
writeRequest.Database = Parent;
await writeCall.RequestStream.WriteAsync(writeRequest);
await writeCall.ResponseStream.MoveNext();
var responseStr = writeCall.ResponseStream.Current;
streamId = responseStr.StreamId;
streamToken = responseStr.StreamToken;
var responseReaderTask = Task.Run(async() =>
{
while (await writeCall.ResponseStream.MoveNext())
{
var response = writeCall.ResponseStream.Current;
var writeResults = response.WriteResults;
foreach (var writeResult in writeResults)
{
FirestoreTestUtils.ColoredConsoleWrite(ConsoleColor.White, "\nWrite result:" + writeResult.ToString());
}
}
});
var currentWrite = new Write();
var docMask = new DocumentMask();
// update/create fields
while (true)
{
FirestoreTestUtils.ColoredConsoleWrite(ConsoleColor.White, "\nEnter Field Name (blank when finished): ");
string fieldName = Console.ReadLine();
if (fieldName == "")
{
break;
}
else
{
FirestoreTestUtils.ColoredConsoleWrite(ConsoleColor.White, "\nEnter Field Value: ");
var fieldInValue = Console.ReadLine();
Utils.AddField(fields, fieldName, fieldInValue);
docMask.FieldPaths.Add(fieldName);
}
}
writeRequest.Database = Parent;
currentWrite.Update = updatedDoc;
currentWrite.UpdateMask = docMask;
writeRequest.StreamId = streamId;
writeRequest.StreamToken = streamToken;
writeRequest.Writes.Add(currentWrite);
await writeCall.RequestStream.WriteAsync(writeRequest);
await writeCall.RequestStream.CompleteAsync();
await responseReaderTask;
}
}
catch (Grpc.Core.RpcException e)
{
Console.WriteLine("RPC failed", e);
throw;
}
FirestoreTestUtils.ColoredConsoleWrite(ConsoleColor.Green, "\nSuccessfully streamed updates to the document!\n");
}
