confirmTransaction

Checks if a transaction that has been sent to the network has been confirmed. The function polls the network for the given transaction signature and waits for a specified duration for it to be finalized.

This is a critical step to verify if a transaction was successful.

Parameters

Parameter	Type	Description
signature	const String&	The Base58 encoded signature of the transaction to confirm.
maxWaitMs	uint32_t	(Optional) The maximum time to wait for confirmation in milliseconds. Defaults to 5000ms.

Return Value

• bool: Returns true if the transaction is confirmed within the timeout period, false otherwise.

Example Code (main.cpp)

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

// --- 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)";
Infratic solana(SOLANA_RPC_URL);

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

    // Connect to WiFi
    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=== Confirm Transaction Example ===");

    // NOTE: Replace this with a real, recently sent transaction signature from the devnet.
    String txSignature = "5k5f3msN3s94fL9J3b2r2u2m7Yw2b2s2k2o8p6c4X4e5g6h7j8k9l0m1n2o3p4q5r6s7t8u9v0w";

    Serial.println("Waiting for confirmation of tx: " + txSignature);

    if (solana.confirmTransaction(txSignature, 10000)) { // Wait up to 10 seconds
        Serial.println("✅ Transaction confirmed!");
    } else {
        Serial.println("❌ Transaction not confirmed or timed out.");
    }
}

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