Solana Primitives

A lightweight Rust crate providing fundamental Solana blockchain primitives for constructing and submitting transactions without requiring the full Solana SDK.

Features

• Core Solana Types: Pubkey, Signature, Instruction, Transaction, Message
• Builder Pattern APIs: Fluent TransactionBuilder and InstructionBuilder with automatic account management
• Instruction Data Builder: Type-safe InstructionDataBuilder for constructing instruction payloads
• Program Helpers: Pre-built instructions for System, Token, and other common programs
• Program ID Utilities: Helper functions for common program IDs (System, Token, Token 2022, etc.)
• PDA Support: Program Derived Address generation and validation
• Error Handling: Comprehensive error types with detailed context messages
• Lightweight: Minimal dependencies for reduced bloat

Usage

Add this to your Cargo.toml:

[dependencies]
solana-primitives = "0.2.4"

Quick Start

use solana_primitives::{
    Pubkey, InstructionBuilder, InstructionDataBuilder, TransactionBuilder,
    instructions::program_ids::system_program,
    instructions::system::transfer,
};

fn main() -> Result<(), Box<dyn std::error::Error>> {
    let fee_payer = Pubkey::from_base58("11111111111111111111111111111111")?;
    let recipient = Pubkey::from_base58("22222222222222222222222222222222")?;
    let recent_blockhash = [0u8; 32]; // In practice, get this from RPC

    // Method 1: Using pre-built instruction helpers
    let transfer_instruction = transfer(&fee_payer, &recipient, 1_000_000); // 0.001 SOL

    // Method 2: Using InstructionBuilder with InstructionDataBuilder
    let custom_instruction = InstructionBuilder::new(system_program())
        .account(fee_payer, true, true)  // signer + writable
        .account(recipient, false, true) // writable
        .data(
            InstructionDataBuilder::new()
                .instruction(2)     // Transfer instruction discriminant
                .u64(1_000_000)     // Amount in lamports
                .build()
        )
        .build();

    // Build transaction
    let mut tx_builder = TransactionBuilder::new(fee_payer, recent_blockhash);
    tx_builder.add_instruction(transfer_instruction);

    let transaction = tx_builder.build()?;
    println!("Transaction created with {} instructions", transaction.message.instructions.len());

    Ok(())
}

Advanced Usage

Versioned (V0) Transactions with Lookup Tables

use solana_primitives::{
    AddressLookupTableAccount, Pubkey, TransactionBuilder,
    instructions::system::transfer,
};

let fee_payer = Pubkey::new([1u8; 32]);
let recipient = Pubkey::new([2u8; 32]);
let looked_up = Pubkey::new([3u8; 32]);
let recent_blockhash = [9u8; 32];

let mut tx_builder = TransactionBuilder::new(fee_payer, recent_blockhash);
tx_builder.add_instructions(vec![transfer(&fee_payer, &recipient, 1_000)]);
let address_lookup_tables = vec![AddressLookupTableAccount::new(
    Pubkey::new([4u8; 32]),
    vec![looked_up],
)];

let tx = tx_builder.build_v0(&address_lookup_tables)?;
let wire_bytes = tx.serialize()?;

Program Derived Addresses (PDAs)

use solana_primitives::{find_program_address, Pubkey};

let program_id = Pubkey::from_base58("YourProgramId11111111111111111111111111")?;
let seeds = [b"your_seed", b"another_seed"];
let seed_refs: Vec<&[u8]> = seeds.iter().map(|s| s.as_ref()).collect();

let (pda, bump) = find_program_address(&program_id, &seed_refs)?;
println!("PDA: {}, Bump: {}", pda.to_base58(), bump);

Error Handling

The crate provides detailed error context:

use solana_primitives::{Pubkey, Result, SolanaError};

fn example() -> Result<()> {
    // This will provide a detailed error message
    let invalid_pubkey = Pubkey::from_base58("invalid")?;
    Ok(())
}

// Error message: "Invalid public key: failed to decode base58: invalid"

Available Program Helpers

The crate includes pre-built instruction constructors for common Solana programs:

• System Program: transfer, create_account, allocate, etc.
• Token Program: transfer, transfer_checked, mint_to, burn, etc.
• Associated Token Program: create_associated_token_account
• Compute Budget Program: set_compute_unit_limit, set_compute_unit_price

Program ID helpers are available for easy access:

use solana_primitives::instructions::program_ids::{
    system_program, token_program, token_2022_program,
    associated_token_program, compute_budget_program
};

Examples

See solana-primitives/examples/ for complete working examples:

• basic - Basic transaction construction
• decode_tx - Transaction deserialization

Run examples with:

cargo run --example basic
cargo run --example decode_tx

License

Apache-2.0