private async Task <FilterLog[]> RetrieveLogsAsync(
BlockRange range, NewFilterInput filter, uint retryNumber = 0)
{
try
{
filter.SetBlockRange(range);
_logger.RetrievingLogs(filter, range, retryNumber);
return(await _eventLogProxy.SendRequestAsync(filter).ConfigureAwait(false));
}
catch (RpcResponseException rpcResponseEx) when(rpcResponseEx.TooManyRecords())
{
_logger.TooManyRecords(range, rpcResponseEx);
throw rpcResponseEx.TooManyRecordsException();
}
catch (Exception ex)
{
_logger.RetrievalError(range, ex);
retryNumber++;
if (retryNumber < MaxRetries)
{
_logger.PausingBeforeRetry(range, retryNumber);
await RetryWaitStrategy.Apply(retryNumber).ConfigureAwait(false);
return(await RetrieveLogsAsync(range, filter, retryNumber)
.ConfigureAwait(false));
}
_logger.MaxRetriesExceededSoThrowing(MaxRetries, ex);
throw;
}
}
private async Task <GetLogsResponse?> GetLogsAsync(OrchestrationProgress progress, BigInteger fromBlock, BigInteger toBlock, int retryRequestNumber = 0, int retryNullLogsRequestNumber = 0)
{
try
{
var adjustedToBlock =
_blockRangeRequestStrategy.GeBlockNumberToRequestTo(fromBlock, toBlock,
retryRequestNumber);
_filterInput.SetBlockRange(fromBlock, adjustedToBlock);
var logs = await EthApi.Filters.GetLogs.SendRequestAsync(_filterInput).ConfigureAwait(false);
//If we don't get any, lets retry in case there is an issue with the node.
if (logs == null && retryNullLogsRequestNumber < MaxGetLogsNullRetries)
{
return(await GetLogsAsync(progress, fromBlock, toBlock, 0, retryNullLogsRequestNumber + 1).ConfigureAwait(false));
}
retryRequestNumber = 0;
retryNullLogsRequestNumber = 0;
return(new GetLogsResponse(fromBlock, adjustedToBlock, logs));
}
catch (Exception ex)
{
if (retryRequestNumber >= MaxGetLogsRetries)
{
progress.Exception = ex;
return(null);
}
else
{
return(await GetLogsAsync(progress, fromBlock, toBlock, retryRequestNumber + 1).ConfigureAwait(false));
}
}
}
private async Task <GetLogsResponse?> GetLogsAsync(OrchestrationProgress progress, BigInteger fromBlock, BigInteger toBlock, int retryRequestNumber = 0)
{
try
{
var adjustedToBlock =
_blockRangeRequestStrategy.GeBlockNumberToRequestTo(fromBlock, toBlock,
retryRequestNumber);
_filterInput.SetBlockRange(fromBlock, adjustedToBlock);
var logs = await EthApi.Filters.GetLogs.SendRequestAsync(_filterInput).ConfigureAwait(false);
return(new GetLogsResponse(fromBlock, adjustedToBlock, logs));
}
catch (Exception ex)
{
if (retryRequestNumber >= MaxGetLogsRetries)
{
progress.Exception = ex;
return(null);
}
else
{
return(await GetLogsAsync(progress, fromBlock, toBlock, retryRequestNumber + 1).ConfigureAwait(false));
}
}
}
private async Task <FilterLog[]> RetrieveLogsAsync(
BlockRange range, NewFilterInput filter, uint retryNumber = 0)
{
try
{
filter.SetBlockRange(range);
_log.LogInformation($"RetrieveLogsAsync - getting logs. RetryNumber:{retryNumber}, from:{range.From}, to:{range.To}.");
return(await _eventLogProxy.GetLogs(filter).ConfigureAwait(false));
}
catch (Exception ex)
{
_log.LogError("Get Logs Error", ex);
retryNumber++;
if (retryNumber < MaxRetries)
{
_log.LogInformation("Pausing before retry get logs");
await RetryWaitStrategy.Apply(retryNumber).ConfigureAwait(false);
_log.LogInformation("Retrying get logs");
return(await RetrieveLogsAsync(range, filter, retryNumber)
.ConfigureAwait(false));
}
_log.LogError("MaxRetries exceeded when getting logs, throwing exception.", ex);
throw;
}
}
