PEPETA UG Measurement Protocol | confirmation deposit placed | gtag.js

const measurementId = 'G-Q74L0TS3QB';
const apiSecret = 'cVVzH6uPSBaDsyy3ZqfkHA';

fetch(`https://www.google-analytics.com/mp/collect?measurement_id=${measurementId}&api_secret=${apiSecret}`, {
  method: "POST",
  headers: {
    "Content-Type": "application/json"
  },
  body: JSON.stringify({
    "client_id": clientId,               // String: Must be retrieved from the client browser cookie (_ga)
    "user_id": userId,                   // String: Your internal unique user ID
    "timestamp_micros": timestampMicros, // String: Unix epoch timestamp in microseconds
    "events": [
      {
        "name": "confirmation_deposit_placed",
        "params": {
          "session_id": sessionId,       // String: GA4 session ID from the web client (_ga_xxxxxx)
          "deposit_id": depositId,       // String: Unique identifier for the transaction
          "currency": currencyCode,       // String: 3-letter ISO 4217 code (e.g., "UGX", "USD")
          "value": depositValue          // Numeric: Double or Integer (do NOT wrap in quotes)
        }
      }
    ]
  })
})
.then(response => {
  // GA4 explicitly returns a 204 No Content status on successful delivery
  if (response.status === 204) {
    console.log("GA4 Web Event successfully dispatched.");
  } else {
    console.error(`GA4 Error Status: ${response.status}`);
  }
})
.catch(error => console.error("Network error reporting to GA4:", error));