solana_kit_loader

Dart helpers for Solana's BPF Loader v3 (Upgradeable) and Loader v4 programs.

Usage

import 'dart:typed_data';

import 'package:solana_kit_addresses/solana_kit_addresses.dart';
import 'package:solana_kit_loader/solana_kit_loader.dart';

final instruction = getLoaderV3WriteInstruction(
  bufferAccount: const Address('11111111111111111111111111111111'),
  bufferAuthority: const Address('11111111111111111111111111111112'),
  offset: 0,
  bytes: Uint8List.fromList([1, 2, 3]),
);

Key APIs

• Program constants: bpfLoaderUpgradeableProgramAddress, loaderV4ProgramAddress.
• Loader v3 instructions: initialize buffer, write, deploy with max data length, upgrade, set authority, close, extend program, and checked authority update.
• Loader v3 account codecs: BufferAccount, ProgramDataAccount.
• Loader v4 instructions: write, truncate, deploy, retract, transfer authority, and finalize.
• Loader v4 account codec: ProgramStateAccount.
• Planning helpers: getDeployProgramInstructionPlan and getUpgradeProgramInstructionPlan chunk program bytes into loader writes before the deploy or upgrade instruction.