storeBatchCommitmentsOnChain

Stores a batch of commitments (commitments), previously generated by createBatchCommitments, onto the Solana blockchain within a single transaction. This is significantly more cost-effective and efficient than sending each commitment in a separate transaction.

The function typically aggregates all commitments into a single Memo Program instruction.

Parameters

Parameter	Type	Description
privateKeyBase58	const String&	The private key of the wallet paying for the transaction.
fromPubkeyBase58	const String&	The public key of the sender's wallet.
commitments	const std::vector<ZKCommitment>&	The vector of ZKCommitment structures to be stored on-chain.
outTxSignature	String&	Output: If successful, returns the signature of the batch transaction.

Return Value

• bool: Returns true if the transaction was sent and confirmed successfully.

Example Code (main.cpp)

#include <Arduino.h>
#include <WiFi.h>
#include <vector>
#include "Infratic-lib.h" // Assume ZKCommitment struct is defined here

// --- WiFi Settings ---
const char* WIFI_SSID = "YOUR_WIFI_SSID";
const char* WIFI_PASSWORD = "YOUR_WIFI_PASSWORD";

// --- Solana Settings ---
const String SOLANA_RPC_URL = "[https://api.devnet.solana.com](https://api.devnet.solana.com)";
const String MY_PRIVATE_KEY_BASE58 = "YOUR_PRIVATE_KEY_BASE58"; // Your Devnet wallet
const String MY_PUBLIC_KEY_BASE58 = "YOUR_PUBLIC_KEY_BASE58";

Infratic solana(SOLANA_RPC_URL);

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

    // 1. (Offline) First, create the batch commitments
    Serial.println("Creating batch commitments...");
    std::vector<String> dataList;
    dataList.push_back("BatchData_1_OnChain");
    dataList.push_back("BatchData_2_OnChain");
    String sharedSecret = "batchSecretKey";
    std::vector<ZKCommitment> commitments;

    if (!solana.createBatchCommitments(dataList, sharedSecret, commitments)) {
        Serial.println("❌ Test Failed: Could not create commitments first.");
        return;
    }
    Serial.printf("✅ %d commitments created.\n", commitments.size());

    // 2. (Online) Connect to WiFi and send on-chain
    Serial.print("Connecting to WiFi...");
    WiFi.begin(WIFI_SSID, WIFI_PASSWORD);
    while (WiFi.status() != WL_CONNECTED) {
        delay(500);
        Serial.print(".");
    }
    Serial.println("\n✅ WiFi connected!");

    Serial.println("\n=== storeBatchCommitmentsOnChain Example ===");
    String txSignature;
    Serial.println("Sending batch commitments on-chain in a single transaction...");

    if (solana.storeBatchCommitmentsOnChain(MY_PRIVATE_KEY_BASE58, MY_PUBLIC_KEY_BASE58, commitments, txSignature)) {
        Serial.println("✅ Batch commitments successfully stored on-chain!");
        Serial.println("   -> Transaction Signature: " + txSignature);
    } else {
        Serial.println("❌ Failed to store batch commitments on-chain.");
    }
}

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