Stellar (XLM) Blockchain Integration Tutorial: Account Creation, Transfers & History

Introduction to Stellar Blockchain

Stellar is a decentralized blockchain network designed for fast, low-cost financial transactions. The Stellar network consists of several key components:

Horizon API - The RESTful HTTP interface applications use to interact with the Stellar network. Developers can:

• Submit transactions
• Check account balances
• Subscribe to events

Stellar Core - The backbone of the network that:

• Validates transactions
• Maintains consensus
• Processes transactions for a small fee (0.00001 XLM)

Stellar Consensus Protocol (SCP) - The algorithm that prioritizes security over liveness during network partitions or node failures.

👉 Learn more about blockchain fundamentals

Getting Started with Stellar Development

Prerequisites

• Basic JavaScript knowledge
• Familiarity with Express.js
• Understanding of async/await functions

Tools Needed

• Node.js environment
• Stellar JavaScript SDK
• Docker (optional for running local Stellar Core)

Creating Stellar Accounts

1. Install Stellar SDK

npm install stellar-sdk

2. Initialize Server Connection

const server = new Stellar.Server('https://horizon-testnet.stellar.org');
Stellar.Network.useTestNetwork();

3. Generate Key Pairs

const pairA = Stellar.Keypair.random();
const pairB = Stellar.Keypair.random();

4. Fund Test Accounts

await rp.get({
  uri: 'https://horizon-testnet.stellar.org/friendbot',
  qs: { addr: pairA.publicKey() },
  json: true
});

Executing Stellar Transactions

Building a Transaction

const transaction = new Stellar.TransactionBuilder(accountA)
  .addOperation(Stellar.Operation.payment({
    destination: pairB.publicKey(),
    asset: Stellar.Asset.native(),
    amount: '30.0000001'
  }))
  .build();

Signing and Submitting

transaction.sign(pairA);
const result = await server.submitTransaction(transaction);

Retrieving Transaction History

Accessing Transaction Records

let historyPage = await server.transactions()
  .forAccount(accountA.accountId())
  .call();

Decoding Transaction Details

let txDetails = Stellar.xdr.TransactionEnvelope
  .fromXDR(historyPage.records[1].envelope_xdr, 'base64');

Advanced Stellar Features

👉 Explore advanced blockchain integration

FAQ

Q: What's the minimum transaction fee on Stellar?

A: The minimum fee is 100 stroops (0.00001 XLM) per transaction.

Q: How do I get XLM for testing?

A: Use the friendbot service on testnet by sending a request with your public key.

Q: Can I create custom assets on Stellar?

A: Yes, Stellar supports creating custom assets through its asset issuance system.

Q: What programming languages support Stellar SDK?

A: Official SDKs exist for JavaScript, Java, and Go, with community SDKs for Python, C#, and Ruby.

Q: How long do Stellar transactions take?

A: Transactions typically complete in 3-5 seconds on the Stellar network.