Messenger 平台

Try It – Send a Message with Messenger Platform

Learn how your business can send a message to a customer using the Messenger Platform.

You can use this tutorial to send a message from your app or, if you don't have a fully functional app or just want to explore, you can use our Graph API Explorer.

Before You Start

本指南假設您已閱讀 Messenger 平台概覽，且已執行收發訊息和通知所需的元件。

Requirements

To make a successful call to the Meta social graph to send a message, your app will need:

  • The pages_show_list permission and a User access token, requested by you. This allows your app, or the Graph API Explorer, to get your Page ID.
  • The pages_messaging permission and a Page access token, requested by a person who can perform the MESSAGING task on your Page, allows your app to get the conversation ID and your Page-scoped ID (PSID)

You can get access tokens 3 different ways:

Start a Conversation

Log in to your Facebook account and send a message to your test Page to create a PSID for the customer (you) that is specific for the Page and a conversation ID representing the conversation between the customer (you) and the Page.

Use Your App

If you have already subscribed to the messaging Webhooks, you can get the PSID, the conversation ID, and the message text from the Webhook notification, and move to Step 3.

Step 1. Get the IDs

You will need the ID for your Page, the PSID for the person who sent the message (you) and the conversation ID.

Get the Page ID & Page Access Token

To obtain your Page ID, send a GET request to the /USER-ID/accounts endpoint, replacing USER-ID with your actual your ID. You can also use me in place of the your User ID.

The me endpoint is a special endpoint that represents the ID for the User, Page, or App that is requesting the access token. In the following example, you will use a User access token in the request so me will represent your User ID.

Sample Request

curl -i -X GET "https://graph.facebook.com/LATEST-API-VERSION/me/accounts
    &access_token=USER-ACCESS-TOKEN"

Example Response

On success, your app will receive a JSON object with the Page ID as well as a Page access token that you can use in subsequent requests.

{
  "data": [
    "access_token": "EAABkWcj...",    // PAGE-ACCESS-TOKEN
      "category": "Pet Service",
      "category_list": [
        {
          "id": "144982405562750",
          "name": "Pet Service"
        }
      ],
      "name": "Cisco Dog Page",
      "id": "4225...",                // PAGE-ID
      "tasks": [
        "ADVERTISE",
        "ANALYZE",
        "CREATE_CONTENT",
        "MESSAGING",
        "MODERATE",
        "MANAGE"
      ]
  ]
}

Get the PSID & Message ID

To obtain the PSID and message ID, send a GET request to the /PAGE-ID/conversations endpoint with the participants and messages{id,message} fields.

Sample Request

curl -i -X GET "https://graph.facebook.com/LATEST-API-VERSION/PAGE-ID/conversations
    ?fields=participants,messages{id,message}
    &access_token=PAGE-ACCESS-TOKEN"

Example Response

On success, your app will receive the following JSON response:

{
  "data": [
    {
      "participants": {
        "data": [
          {
            "name": "CUSTOMER-NAME",
            "email": "PSID@facebook.com",
            "id": "PSID"
          },
          {
            "name": "PAGE-NAME",
            "email": "PAGE-ID@facebook.com",
            "id": "PAGE-ID"
          }
        ]
      },
      "id": "t_10224..."   //Conversation ID
    }
  ]
},
      "messages": {
        "data": [
          {
            "id": "m_MeS2...",   //Message ID
            "message": "hello"
          },
          {
            "id": "m_Nl1...",  //Message ID
            "message": "CUSTOMER-NAME used Chat Plugin to start this conversation. Learn more"
          }
        ],
      },
      "id": "t_10224..."
    },

Step 3. Send the Customer a Message

To respond to the message a customer sent to your Page, send a POST request to /PAGE-ID/messages endpoint with the recipient parameter set to the customer's PSID, messaging_type parameter set to RESPONSE, and the message parameter set to your response. Note that this must be sent within 24 hours of your Page receiving the customer's message.

Sample Request

curl -i -X POST "https://graph.facebook.com/LATEST-API-VERSION/PAGE-ID/messages
    ?recipient={id:PSID}
    &message={text:'You did it!'}
    &messaging_type=RESPONSE
    &access_token=PAGE-ACCESS-TOKEN"

On success, your app will receive the following JSON response:

{
  "recipient_id": "1008...",    // The customer's PSID
  "message_id": "m_AG5Hz2..."}  // The message ID

Use the Graph API Explorer Tool

If you have already subscribed to the messaging Webhooks, you can get the PSID, the conversation ID, and the message text from the Webhook notification, and move to Step 3.

Step 1. Get the IDs

You will need the ID for your Page, the Page-scoped ID (PSID) for the person who sent the message (you) and the message ID.

Open the Graph API Explorer in a new browser tab or window.

The explorer loads with a default query with the GET method, the lastest version of the Graph API, the /me node and the id and name fields in the Query String Field, and your Facebook App. If you would like to run this default query, you can click Generate Access Token then Submit. This query will create a User access token and return your name and User ID.

The me endpoint is a special endpoint that represents the ID for the User, Page, or App that is requesting the access token. In the following example, you will use a User access token in the request so me will represent your User ID. In Step 4, me will represent your Page since are using a Page access token.

To get the Page ID for your Page:

  1. Replace the Query String Field string with either me/accounts or /USER-ID/accounts. If you ran the default query, you can click the ID in the response and it will automatically be moved to the Query String Field.
  2. Go the Add a permission dropdown menu in the right side panel and select the pages_show_list permission then click Generate Access Token.
  3. The popup window allows you to agree that the app can access the list of your Pages.
  4. Click Submit to run the query.
發生錯誤
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To get the Message ID and the PSID:

  1. Click the Page ID in the response to move it to the Query String Field and add /conversations?fields=participants,messages{id,message} to the query.
  2. Go to the Add a Permission dropdown menu and select the pages_messaging permission then click Generate Access Token.
  3. Another popup window will ask you to agree that the app can access the conversations of your Pages.
  4. Click Submit to run the query.
  5. Copy the Page ID and PSID for Step 3.

Step 2. Send the Customer a Message

To respond to the message the customer sent to your Page:

  1. In the Response Window, click the message ID for the message you want to reply to.
  2. In the upper left, switch the method from GET to POST.
  3. In the Node Field Viewer to the left of the Response Window, click the + Add parameter under the Params tab. Add the following:
    • recipient set to {id:PSID}
    • messaging_type set to RESPONSE
    • message set to {text:'Hello, new customer!'}
  4. Click Submit.

Note that when using the RESPONSE message type, the message must be sent within 24 hours of your Page receiving the customer's message or an error will occur.

發生錯誤
播放此影片時發生問題。
了解詳情

Next Steps

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