Nexmo入站消息追踪咨询：已成功发送短信并获取messageId

Hey there! Since you already have outbound messages working and are capturing the messageId, let's break down how to track inbound messages with Nexmo (now rebranded as Vonage) step by step:

1. Set Up a Public Webhook Endpoint #

First, you need an HTTPS-enabled, publicly accessible endpoint that can accept POST requests. This is where Nexmo will send data every time an inbound message arrives.

Here's a simple PHP example (matching your existing outbound code stack):

<?php
// inbound-webhook.php
// Capture the incoming JSON payload from Nexmo
$rawInput = file_get_contents('php://input');
$inboundMessage = json_decode($rawInput, true);

// Log or store the message data (you can save this to a database for long-term tracking)
file_put_contents('inbound-messages.log', print_r($inboundMessage, true) . PHP_EOL, FILE_APPEND);

// Send a 200 OK response to confirm receipt (Nexmo will retry if it doesn't get this)
http_response_code(200);
echo 'OK';
?>

2. Configure the Webhook in Your Nexmo Dashboard #

• Log into your Nexmo account and navigate to Numbers > Your Numbers.
• Select the phone number you're using for inbound messages.
• Under the "Inbound Webhook" section, set the Message URL to your public endpoint (e.g., https://your-domain.com/inbound-webhook.php).
• Ensure the request method is set to POST (JSON format is recommended for cleaner data handling).

3. Link Inbound Replies to Your Outbound messageId #

To connect an inbound reply to the original outbound message you sent, you have two reliable options:

Option A: Use Custom Metadata (client-ref Parameter) #

When sending your outbound message, add a client-ref parameter with a unique value tied to your existing messageId. This custom reference will be sent back to you in the inbound message payload:

$url = 'https://rest.nexmo.com/sms/json?' . http_build_query( [ 
    'api_key' => env("NEXMO_API_KEY"), 
    'api_secret' => env("NEXMO_API_SECRET"), 
    'to' => $data['to'], 
    'from' => $data['from'], 
    'text' => 'Hi I am sending the message', 
    'callback' => $data['callbackUrl'],
    'client-ref' => 'outbound-' . $messageId // Tie this to your existing messageId
] );

When the user replies, the client-ref field in the inbound data will let you directly map the reply to the original outbound message.

Option B: Track via Number Pairs #

If you don't use client-ref, you can track conversations by pairing the from (user's phone number) and to (your Nexmo number) fields. Store each outbound messageId alongside these two numbers in your database, then when an inbound message arrives, look up the latest outbound message for that number pair.

4. Key Fields to Track in Inbound Messages #

Nexmo sends a rich payload with each inbound message—focus on these critical fields for tracking:

• messageId: Unique ID for the inbound message itself
• from: The user's phone number (the sender of the reply)
• to: Your Nexmo phone number (the recipient of the reply)
• text: The content of the user's reply
• timestamp: The exact time the message was received
• client-ref: Your custom outbound reference (if you used Option A)

Bonus: Leverage Your Existing Delivery Callback #

You already have a callback URL set for outbound messages—this endpoint will receive delivery receipts (e.g., "delivered", "failed", "pending") for your outbound messages. You can use this to track the status of outgoing messages alongside inbound replies, creating a full conversation history.

内容的提问来源于stack exchange，提问作者Maneesh Rao