public async Task AnEventAndItsTransaction()
{
const string EVENT_INDEX_NAME = "transfer-logs-related";
const string FUNCTION_INDEX_NAME = "related-transfer-functions";
//surround with "using" so that anything in a buffer is sent on dispose
using (var azureSearchService = new AzureSearchService(AzureSearchServiceName, _azureSearchApiKey))
{
try
{
//setup
var transferEventIndex = await azureSearchService.CreateIndexForEventLogAsync <TransferEvent_ERC20>(EVENT_INDEX_NAME);
var transferFunctionIndex = await azureSearchService.CreateIndexForFunctionMessageAsync <TransferFunction>(FUNCTION_INDEX_NAME);
var transferIndexer = azureSearchService.CreateIndexerForEventLog <TransferEvent_ERC20>(transferEventIndex.Name);
var transferFunctionIndexer = azureSearchService.CreateIndexerForFunctionMessage <TransferFunction>(transferFunctionIndex.Name);
//this handler ensures the transaction is a Transfer and invokes the indexer
var transferFunctionProcessorHandler = transferFunctionIndexer.CreateProcessorHandler();
var web3 = new Web3.Web3(BlockchainUrl);
var blockchainProcessor = web3.Processing.Logs.CreateProcessor <TransferEvent_ERC20>(async(log) => {
await transferIndexer.IndexAsync(log);
var transactionWithReceipt = await web3.Eth.GetTransactionReceiptVO(log.Log.BlockNumber, log.Log.TransactionHash).ConfigureAwait(false);
await transferFunctionProcessorHandler.ExecuteAsync(transactionWithReceipt);
});
var cancellationTokenSource = new CancellationTokenSource();
//execute
await blockchainProcessor.ExecuteAsync(3146694, cancellationTokenSource.Token, 3146684);
//assert
await Task.Delay(5000); // allow time to index
Assert.Equal(19, await azureSearchService.CountDocumentsAsync(EVENT_INDEX_NAME));
Assert.Equal(3, await azureSearchService.CountDocumentsAsync(FUNCTION_INDEX_NAME));
}
finally
{
await azureSearchService.DeleteIndexAsync(EVENT_INDEX_NAME);
await azureSearchService.DeleteIndexAsync(FUNCTION_INDEX_NAME);
}
}
}
public async Task IndexingTransferFunctions()
{
const string INDEX_NAME = "transfer-functions";
//surround with "using" so that anything in a buffer is sent on dispose
using (var azureSearchService = new AzureSearchService(AzureSearchServiceName, _azureSearchApiKey))
{
try
{
//setup
var index = await azureSearchService.CreateIndexForFunctionMessageAsync <TransferFunction>(INDEX_NAME);
var indexer = azureSearchService.CreateIndexerForFunctionMessage <TransferFunction>(index.Name, documentsPerBatch: 1);
var processorHandler = indexer.CreateProcessorHandler();
var web3 = new Web3.Web3(BlockchainUrl);
var blockchainProcessor = web3.Processing.Blocks.CreateBlockProcessor((steps) => {
steps.TransactionStep.SetMatchCriteria(tx => tx.Transaction.IsFrom("0xf47a8bb5c9ff814d39509591281ae31c0c7c2f38"));
steps.TransactionReceiptStep.AddProcessorHandler(processorHandler);
});
var cancellationTokenSource = new CancellationTokenSource();
//execute
await blockchainProcessor.ExecuteAsync(3146689, cancellationTokenSource.Token, 3146689);
//assert
await Task.Delay(5000); // allow time to index
Assert.Equal(1, await azureSearchService.CountDocumentsAsync(INDEX_NAME));
}
finally
{
await azureSearchService.DeleteIndexAsync(INDEX_NAME);
}
}
}