Getting block by height

Get the block information given a height.

Prerequisites

• Text editor or IDE
• XPX-Chain-SDK or XPX-Chain-CLI
• Finish the getting started section

Getting into some code

Are you curious to see what happened in the genesis block?

Golang

TypeScript

JavaScript

Java

conf, err := sdk.NewConfig(context.Background(), []string{"http://localhost:3000"})
if err != nil {
    panic(err)
}

// Use the default http client
client := sdk.NewClient(nil, conf)

block, err := client.Blockchain.GetBlockByHeight(context.Background(), sdk.Height(1))
if err != nil {
    panic(err)
}
fmt.Printf(block.String())

const blockchainHttp = new BlockchainHttp('http://localhost:3000');

const height = 1;

blockchainHttp
    .getBlockByHeight(height)
    .subscribe(block => console.log(block), err => console.error(err));

const blockchainHttp = new BlockchainHttp('http://localhost:3000');

const height = 1;

blockchainHttp
    .getBlockByHeight(height)
    .subscribe(block => console.log(block), err => console.error(err));

    final BlockchainHttp blockchainHttp = new BlockchainHttp("http://localhost:3000");

    // Replace with block height
    final BigInteger blockHeight = BigInteger.valueOf(1);

    final BlockInfo blockInfo = blockchainHttp.getBlockByHeight(blockHeight).toFuture().get();

    System.out.print(blockInfo);

The following snippet returns the height of the latest block.

Golang

TypeScript

JavaScript

Java

CLI

conf, err := sdk.NewConfig(context.Background(), []string{"http://localhost:3000"})
if err != nil {
    panic(err)
}

// Use the default http client
client := sdk.NewClient(nil, conf)

height, err := client.Blockchain.GetBlockchainHeight(context.Background())
if err != nil {
    panic(err)
}
fmt.Printf("%s\n", height)

const blockchainHttp = new BlockchainHttp('http://localhost:3000');

blockchainHttp
    .getBlockchainHeight()
    .subscribe(height => console.log(height.compact()), err => console.error(err));

const blockchainHttp = new BlockchainHttp('http://localhost:3000');

blockchainHttp
    .getBlockchainHeight()
    .subscribe(height => console.log(height.compact()), err => console.error(err));

    final BlockchainHttp blockchainHttp = new BlockchainHttp("http://localhost:3000");

    final BigInteger blockchainHeight = blockchainHttp.getBlockchainHeight().toFuture().get();

    System.out.print(blockchainHeight);

xpx2-cli blockchain height