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Overview of WeChat public platform development

Overview of WeChat public platform development WeChat Developer Specifications WeChat public account interface permission instructions WeChat official account interface call frequency limit instructions

Start development

WeChat Developer Platform Access Guide WeChat public platform interface domain name description WeChat public platform to obtain access_token Get WeChat server IP address Alarm troubleshooting guide Interface test number application

WeChat custom development

Custom menu creation interface Custom menu query interface Custom menu deletion interface Custom menu event push Personalized menu interface Get custom menu configuration interface

Message management

receive normal messages Receive event push Passively reply to user messages Message encryption and decryption instructions Customer service message Advanced group sending interface Template message interface Template message operation specifications Get the automatic reply rules of the official account

WeChat web development

WeChat web page authorization WeChat web development style library WeChat JS-SDK documentation WeChat web developer tools

Material management

Add temporary assets Get temporary assets Add permanent material Delete permanent material Modify permanent graphics and text materials Get the total number of materials Get material list

User Management

User tag management Set user remark name Obtain basic user information (UnionID mechanism) Get user list Get user location Blacklist management

Account management

Generate QR code with parameters Long link to short link interface WeChat authentication event push

Statistics

User analysis data interface Graphical and text analysis data interface Message analysis data interface Interface analysis data interface

WeChat card and coupon interface description

WeChat card and coupon interface Create coupon Place coupons Write off cards and coupons Manage cards and coupons Card and coupon event push Member Card Area (1) Member Card Area (2) Friend’s Voucher Area special ticket Third-party developer model Card error code

WeChat store

WeChat store interface

WeChat store

WeChat store interface Semantic understanding interface

WeChat device functions

Introduction to WeChat Service Account Device Functions How to add a new product model

New version of customer service functions

Forward the message to WeChat customer service WeChat customer service management WeChat session control WeChat gets chat history

WeChat shake peripherals

Apply to open WeChat by shaking WeChat device ID WeChat shake page management Shake WeChat to upload picture materials Manage the relationship between devices and pages WeChat shake data statistics Shake to follow JSAPI Shake event notification Get device information from html5 page Shake WeChat to obtain device and user information Shake the red envelope introduction Shake the peripheral error code

WeChat connected to WIFI

WeChat Connect Wi-Fi Developer Guide Wi-Fi hardware authentication protocol interface description Wi-Fi software service management interface description Activate WeChat Wi-Fi plug-in Wi-Fi store management Wi-Fi device management Configure WeChat WiFi networking method WeChat business homepage management Wi-Fi data statistics Send messages after connecting to the Internet WeChat card and coupon delivery WeChat Wi-Fi interface returns error code Common error codes during WeChat connection process

Scan on WeChat

WeChat scan access guide Create products on WeChat WeChat product release WeChat product management Scan event push One thing, one code area Scan the error code Online help tools

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WeChat public platform developer documentation

Passively reply to user messages

Collection 105

update time 2016-09-11

Receive event push

Message encryption and decryption instructions

Passive reply to user messages

When a user sends a message to the official account (or when events are pushed due to certain specific user operations), a POST request will be generated. Developers can respond to the message by returning a specific XML structure in the response package (Get) (reply text, pictures, graphics, voice, video, and music are now supported). Strictly speaking, sending a passive response message is not actually an interface, but a reply to a message sent by the WeChat server.

After the WeChat server sends the user's message to the official account's developer server address (configured in the developer center), if the WeChat server does not receive a response within five seconds, it will disconnect and re-initiate the request. , retry three times in total. If during debugging, you find that the user cannot receive the response message, you can check whether the message processing times out. Regarding retry message deduplication, it is recommended to use msgid to deduplicate messages with msgid. It is recommended to use FromUserName CreateTime to deduplicate event type messages.

If developers want to enhance security, they can turn on message encryption in the developer center. In this way, messages sent by users to official accounts and passive replies to user messages from official accounts will continue to be encrypted (but). For details, see Passive Reply Message encryption and decryption instructions.

If the server cannot guarantee to process and reply within five seconds, the following reply must be made, so that the WeChat server will not do anything with it and will not initiate a retry (in this case, you can Use the customer service message interface for asynchronous reply), otherwise, a serious error message will appear. See the instructions below for details:

1. Directly reply to success (recommended method)

2. Directly reply to an empty string (referring to an empty string with a byte length of 0, rather than The content of the content field in the XML structure is empty)

Once the following situations are encountered, WeChat will issue the message to the user in the public account session The system prompts "This official account is temporarily unable to provide services, please try again later":

1. The developer did not reply with any content within 5 seconds

2. The developer responded with abnormal data, such as JSON data, etc.

In addition, please note that when replying to multimedia messages such as pictures, you need to upload temporary materials to the WeChat server through the material management interface in advance. You can use temporary materials in material management or permanent materials.

Reply to text message

##<xml>

</xml>

Parameter	Is it required	Description
ToUserName	is the	receiver account (received OpenID)
FromUserName	is the	developer WeChat ID
CreateTime	is the	message creation time (integer)
MsgType	is	text
Content	is the message content of	(line break: line breaks can be made in content , WeChat client supports line wrap display)

Reply to picture message

<xml>
<ToUserName><![CDATA[toUser]]></ToUserName>
<FromUserName><![CDATA[fromUser]]></FromUserName>
<CreateTime>12345678</CreateTime>
<MsgType><![CDATA[image]]></MsgType>
<Image>
<MediaId><![CDATA[media_id]]></MediaId>
</Image>
</xml>

Parameter	Is it required	Description
ToUserName	is the	receiver account (received OpenID)
FromUserName	is the	developer WeChat ID
CreateTime	is the	message creation time (integer)
MsgType	is	image
MediaId	is	Upload multimedia files through the interface in material management , the obtained id.

Reply to voice message

<xml>
<ToUserName><![CDATA[toUser]]></ToUserName>
<FromUserName><![CDATA[fromUser]]></FromUserName>
<CreateTime>12345678</CreateTime>
<MsgType><![CDATA[voice]]></MsgType>
<Voice>
<MediaId><![CDATA[media_id]]></MediaId>
</Voice>
</xml>

Parameter	Is it required	Description
ToUserName	is the	receiver account (received OpenID)
FromUserName	is the	developer Wechat ID
CreateTime	is the	message creation timestamp (integer)
MsgType	is	voice, voice
MediaId	is	Upload multimedia files through the interface in material management , the obtained id

Reply to video message

<xml>
<ToUserName><![CDATA[toUser]]></ToUserName>
<FromUserName><![CDATA[fromUser]]></FromUserName>
<CreateTime>12345678</CreateTime>
<MsgType><![CDATA[video]]></MsgType>
<Video>
<MediaId><![CDATA[media_id]]></MediaId>
<Title><![CDATA[title]]></Title>
<Description><![CDATA[description]]></Description>
</Video> 
</xml>

##MediaId is the id## obtained by uploading multimedia files through the interface in material management. NoNo

Parameter

Is it required

Description

ToUserName

Yes

Receiver account (received OpenID)

FromUserName

Developer WeChat ID

CreateTime

Message creation time (integer)

MsgType

video

#Title

Title of video message

Description

Video message description of

Reply to Music Message

<xml>
<ToUserName><![CDATA[toUser]]></ToUserName>
<FromUserName><![CDATA[fromUser]]></FromUserName>
<CreateTime>12345678</CreateTime>
<MsgType><![CDATA[music]]></MsgType>
<Music>
<Title><![CDATA[TITLE]]></Title>
<Description><![CDATA[DESCRIPTION]]></Description>
<MusicUrl><![CDATA[MUSIC_Url]]></MusicUrl>
<HQMusicUrl><![CDATA[HQ_MUSIC_Url]]></HQMusicUrl>
<ThumbMediaId><![CDATA[media_id]]></ThumbMediaId>
</Music>
</xml>

Parameter	Is it required	Description
ToUserName	Yes	Receiver account (received OpenID)
FromUserName	is	Developer WeChat ID
CreateTime	is	Message creation time (integer)
MsgType	is	music
Title	No	Music Title
Description	No	Music Description
MusicURL	No	Music Link
HQMusicUrl	No	High-quality music link, WIFI environment preferentially uses this link to play music
ThumbMediaId	is the media ID of the	thumbnail. Upload multimedia files through the interface in material management, and the obtained ID

##Reply to graphic message

<xml>
<ToUserName><![CDATA[toUser]]></ToUserName>
<FromUserName><![CDATA[fromUser]]></FromUserName>
<CreateTime>12345678</CreateTime>
<MsgType><![CDATA[news]]></MsgType>
<ArticleCount>2</ArticleCount>
<Articles>
<item>
<Title><![CDATA[title1]]></Title> 
<Description><![CDATA[description1]]></Description>
<PicUrl><![CDATA[picurl]]></PicUrl>
<Url><![CDATA[url]]></Url>
</item>
<item>
<Title><![CDATA[title]]></Title>
<Description><![CDATA[description]]></Description>
<PicUrl><![CDATA[picurl]]></PicUrl>
<Url><![CDATA[url]]></Url>
</item>
</Articles>
</xml>

##ArticleCount is the number of graphic messages, limited to 10 messagesArticles is multiple graphic and text messages. By default, the first item is a large image. Note that if the number of graphic and text exceeds 10, there will be no response

Parameter	Is it required	Description
ToUserName	Yes	Receiver account (received OpenID)
FromUserName	is	Developer WeChat ID
CreateTime	is	Message creation time (integer)
MsgType	is	news


Title	No	Graphic message title
Description	No	Graphic message description
PicUrl	No	Picture link, supports JPG and PNG formats, the best effect is a large image 360200, Small picture 200200
Url	No	Click on the graphic message to jump to the link