findProgramAddress

This is the low-level version of derivePDA. It finds a Program Derived Address (PDA) and its corresponding "bump" seed using raw byte vectors (std::vector<uint8_t>) instead of Base58 strings.

This is typically used internally by the library or when you need to work with addresses in their raw byte format.

Parameters

Parameter	Type	Description
seeds	const std::vector<std::vector<uint8_t>>&	A vector of byte vectors to be used as seeds for the derivation.
programId	const std::vector<uint8_t>&	The 32-byte raw address of the program.
outPDA	std::vector<uint8_t>&	An output parameter that will be populated with the calculated 32-byte PDA.
outBump	uint8_t&	An output parameter that will be populated with the calculated 'bump' seed.

Return Value

• bool: Returns true if a valid PDA was found, false otherwise.

Example Code (main.cpp)

#include <Arduino.h>
#include "Infratic-lib.h"

// --- Settings ---
const String SOLANA_RPC_URL = "[https://api.devnet.solana.com](https://api.devnet.solana.com)";
const String MY_PUBLIC_KEY_BASE58 = "YOUR_PUBLIC_KEY_BASE58";
const String PROGRAM_ID_BASE58 = "MemoSq4gqABAXKb96qnH8TysNcVtrp5GzAufjCUajQN";

Infratic solana(SOLANA_RPC_URL);

void setup() {
    Serial.begin(115200);
    delay(1000);

    Serial.println("\n=== findProgramAddress Example ===");

    // Convert inputs to raw byte format
    std::string seed1_str = "pda_account";
    std::vector<uint8_t> seed1(seed1_str.begin(), seed1_str.end());
    std::vector<uint8_t> seed2 = base58ToPubkey(MY_PUBLIC_KEY_BASE58);
    std::vector<std::vector<uint8_t>> seeds = { seed1, seed2 };

    std::vector<uint8_t> programId = base58ToPubkey(PROGRAM_ID_BASE58);

    std::vector<uint8_t> pda_bytes;
    uint8_t bump;

    if (solana.findProgramAddress(seeds, programId, pda_bytes, bump)) {
        Serial.println("✅ PDA found successfully!");
        Serial.print("   -> PDA (hex): ");
        for (uint8_t b : pda_bytes) {
            if (b < 16) Serial.print("0");
            Serial.print(b, HEX);
        }
        Serial.println();
        Serial.print("   -> Bump Seed: ");
        Serial.println(bump);
    } else {
        Serial.println("❌ Failed to find PDA.");
    }
}

void loop() {
    // Can be left empty
}