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Parking Bitcoin Blockchain in C
without external API
======== goods = ========
While working with Nbitcoin, which is a .NET Library for Interaction with Bitcoin and Ethereum Blockchain, we will study a possible solution to analyze Bitcoin Blockchain without using external APIs.
Cancellation:
This approach requires knowing the structure and transactions of Blockchain. In addition, because of the decentralized nature of the blockchain, this method may not provide accurate or updated balance sheet information at a specific address.
General Presentation:
———–
We will use the built -in functionality of the “Nbitcoin” library to read Bitcoin Blockchain and then analyze it to get the balance at a particular address. We will assume that you have a new pair of keys created in C
using the Nbitcoin API.
Rooms:
- Installation [nbitcoin] ( NGET package
- Do it
Code:
`Csharp
Use of nbitcoin;
Class program
{
Static Void Main (String [] args)
{
// Create a new key couple using Nbitcoin
Keypair Key = GetNewkeyPair ();
// Connection -VA to the Bitcoin knot (replace -you with your own node or create a test network)
Node node = new testnetnode ("http: // localhost: 8332"); // Correct as per knot URL
// Read Blockchain Bitcoin in byt tact
byte [] blockchain = node.blockchain (). Read ();
// Analyze data from Blockchain using the Nbitcoin Block class
Block block = blockchain [0];
// Find Interest Transaction (eg, "Getaddrinfo" transaction containing balance)
Transaction TX = block.transctions.firstroderfault (t => t.type == 2);
If (tx! = null)
{
// extract the address from the transaction
String address = tx.Address;
// Get the balance at the specified address using the Nbitcoin Account class
Account Account = Node.accounts.get (address);
Decimal balance = account.balance;
Console.Writeline ($ "Address: {Address}, Balance: {Balance: C}");
}
otherwise
{
Console.Writeline ("No transactions found.");
}
}
// The help feature to create a new pair of keys using Nbitcoin API
GetNewkeyPair Static Keyboard ()
{
Returns a new Keypair ();
}
}
Explanation:
- We associate with a Bitcoin knot in memory, in the name of simplicity.
- I read the whole blockchain in the Block by byte.
- We analyze the first block using the Nbitcoin Block class that contains transactions.
- We find the transaction that contains the balance by filtering by transactions (in this case, the “Getaddrinfo” transaction).
- If the transaction is found, we retrieve the address from it and use the Nbitcoin Account class to get the balance.
Note: This solution suggests that you work with a knot in memory or create a test network. In a script in the real world, the use of a bitcoin living knot is essential for precision. In addition, please keep in mind that this approach may not provide accurate information on short -term balances due to blockchain congestion and other factors.
Please note that this example provides a simplified solution and should not be used for quality manufacturing applications without additional tests and validation.
