# Mobile Application Invocation Service Market Interface

WeChat Service MarketSome of the value-added capabilities provided by the interface can not only be Official Account message template And Mini Program calls, can also be invoked by mobile applications, please refer to the following guidelines for details.

# Step 1: Create an Application

Please go to the "Management Center" to create an application, click "Create Mobile Application," fill in the relevant information, and then submit the application to review, only the approved application can be developed.

Registration is complete. We will meet at 7 Complete the audit within one working day. Upon approval, the Open Platform will be assigned to a globally unique AppID and AppSecret。

# Step 2: According to the AppID and AppSecret Get access Token

# Calling Interface:

GET https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=APPID&secret=APPSECRET

# Dxplaination of parameters:

parameter	Is it necessary to	Introductions
grant_type	yes	Obtain access_Token fill in client_credential
初始值	yes	Applied appid
secret	yes	Applied appsecret

# Return Instructions:

Under normal circumstances, WeChat will return the following JSON Packets.

{
  "access_token": " ACCESS_TOKEN",
  "expires_in": 7200
}

parameter	Introductions
access_Token	Certificates obtained
expires_in	Voucher valid time in seconds

Error WeChat will return error code and other information, JSON The packet example is as follows (the example is AppID Invalid error):

{
  "errcode": 40013,
  "errmsg": "invalid Helps
}

# Step 3: Use access Token Calling the Service Market Interface

# Enter instructions:

POST https://api.weixin.qq.com/wxa/servicemarket?access_token=ACCESS_TOKEN

# Request parameters

attribute	type	Required	Introductions
access_Token	string	yes	Access obtained in the second step_Token
service	string	yes	service ID, the service id can be found on each interface detail page, see the screenshot at the end of the document
api	string	yes	Interface nameThe api can be found on each interface detail page Name, please see the screenshot at the end of the document
data	string	yes	Defined by the service provider interface JSON Data in format
client_msg_id	string	yes	Random character string ID, the unique identification of the caller's request

# Return value

# Object

Returned JSON Data packet

attribute	type	Introductions
errcode	number	Error code
errmsg	string	Error message
data	string	Packet Return Information

# Sample Request Data

{
  "service" : "xxxxx",
  "api" : "xxxx",
  "data" : {
    xxxxxx
  },
  "client_msg_id" : "id123"
}

# Return Data Example

{
 "errcode": 0,
 "errmsg": "ok",
 "data": "XXXXXX"
}

# Service ID and interface name

The service id and interface name can be found in the following way