public void TestBlockChain()
{
var blockChain = new SimpleBlockChain(100, 1);
blockChain.Add("tom", "jim", 1);
blockChain.Add("tom", "jim", 2);
blockChain.Add("bob", "alice", 3);
Thread.Sleep(1000);
Console.WriteLine(blockChain.ToString());
Assert.IsTrue(blockChain.IsValid());
}
private async Task HandleBlockChainResponse(string message)
{
var receiveBlocks = JsonConvert.DeserializeObject <List <SimpleBlock> >(message);
receiveBlocks.OrderBy(block => block.Index);
SimpleBlock latestBlockReceived = receiveBlocks.Last();
SimpleBlock latestBlock = blockChain.LatestBlock;
if (latestBlockReceived.Index > latestBlock.Index)
{
if (latestBlock.Hash == latestBlockReceived.PreviousHash)
{
logger.LogInformation("We can append the received block to our chain");
blockChain.Add(latestBlockReceived);
await Broadcast(ResponseLatestMessage());
}
else if (receiveBlocks.Count == 1)
{
logger.LogInformation("We have to query the chain from our peer");
await Broadcast(QueryAllMessage());
}
else
{
blockChain.ReplaceChain(receiveBlocks);
}
}
else
{
logger.LogInformation("received blockchain is not longer than received blockchain. Do nothing");
}
}
public async void Post([FromBody] string value)
{
SimpleBlock lastBlock = _blockChain.LatestBlock;
SimpleBlock newBlock = _blockFactory.CreateBlock(lastBlock, value);
_blockChain.Add(newBlock);
await _p2PService.Broadcast(_p2PService.ResponseLatestMessage());
string s = JsonConvert.SerializeObject(newBlock);
_logger.LogInformation("Block added: " + s);
}
