WeChat program API receives messages and events

Receive messages and events

On the page, you can display the go-to-customer service session button by using the button open-type-"contact" />

When a user sends a message in a customer service session, or when an event push is raised by certain user actions, the WeChat server sends packets of the message or event to the URL filled out by the developer, and if the cloud development is used, it can be pushed to the specified cloud function (see Message Push for details). When a developer receives a request, they can use the Send customer service message interface to make an asynchronous reply.

The push JSON and XML packet structures for each message type are as follows.

The text message

When a user sends a text message in a customer service session, the following packets are generated:

XML format

<xml>
   <ToUserName><![CDATA[toUser]]></ToUserName>
   <FromUserName><![CDATA[fromUser]]></FromUserName>
   <CreateTime>1482048670</CreateTime>
   <MsgType><![CDATA[text]]></MsgType>
   <Content><![CDATA[this is a test]]></Content>
   <MsgId>1234567890123456</MsgId>
</xml>

JSON format

{
  "ToUserName": "toUser",
  "FromUserName": "fromUser",
  "CreateTime": 1482048670,
  "MsgType": "text",
  "Content": "this is a test",
  "MsgId": 1234567890123456
}

Description of the parameters

Picture message

When a user sends a picture message in a customer service session, the following packets are generated:

XML format

<xml>
      <ToUserName><![CDATA[toUser]]></ToUserName>
      <FromUserName><![CDATA[fromUser]]></FromUserName>
      <CreateTime>1482048670</CreateTime>
      <MsgType><![CDATA[image]]></MsgType>
      <PicUrl><![CDATA[this is a url]]></PicUrl>
      <MediaId><![CDATA[media_id]]></MediaId>
      <MsgId>1234567890123456</MsgId>
</xml>

JSON format

{
  "ToUserName": "toUser",
  "FromUserName": "fromUser",
  "CreateTime": 1482048670,
  "MsgType": "image",
  "PicUrl": "this is a url",
  "MediaId": "media_id",
  "MsgId": 1234567890123456
}

Description of the parameters

Small program card message

When a user sends a small program card message in a customer service session, the following packets are generated:

XML format

<xml>
  <ToUserName><![CDATA[toUser]]></ToUserName>
  <FromUserName><![CDATA[fromUser]]></FromUserName>
  <CreateTime>1482048670</CreateTime>
  <MsgType><![CDATA[miniprogrampage]]></MsgType>
  <MsgId>1234567890123456</MsgId>
  <Title><![CDATA[Title]]></Title>
  <AppId><![CDATA[AppId]]></AppId>
  <PagePath><![CDATA[PagePath]]></PagePath>
  <ThumbUrl><![CDATA[ThumbUrl]]></ThumbUrl>
  <ThumbMediaId><![CDATA[ThumbMediaId]]></ThumbMediaId>
</xml>

JSON format

{
  "ToUserName": "toUser",
  "FromUserName": "fromUser",
  "CreateTime": 1482048670,
  "MsgType": "miniprogrampage",
  "MsgId": 1234567890123456,
  "Title":"title",
  "AppId":"appid",
  "PagePath":"path",
  "ThumbUrl":"",
  "ThumbMediaId":""
}

Description of the parameters

Enter the session event

The user will generate the following packets when the small program "Customer Service Session Button" enters the customer service session:

XML format

<xml>
    <ToUserName><![CDATA[toUser]]></ToUserName>
    <FromUserName><![CDATA[fromUser]]></FromUserName>
    <CreateTime>1482048670</CreateTime>
    <MsgType><![CDATA[event]]></MsgType>
    <Event><![CDATA[user_enter_tempsession]]></Event>
    <SessionFrom><![CDATA[sessionFrom]]></SessionFrom>
</xml>

JSON format

{
  "ToUserName": "toUser",
  "FromUserName": "fromUser",
  "CreateTime": 1482048670,
  "MsgType": "event",
  "Event": "user_enter_tempsession",
  "SessionFrom": "sessionFrom"
}

Description of the parameters