Weixin public doc

This API is used to obtain the Official Account's follower list, which consists of a batch of OpenIDs (an OpenID is an encrypted Weixin ID that is unique to each user for each Official Account). You can fetch the list multiple times. A maximum of 10,000 follower OpenIDs can be fetched at a time.

API Request Format

HTTP request method: GET (use the HTTPS protocol)
https://api.weixin.qq.com/cgi-bin/user/get?access_token=ACCESS_TOKEN&next_openid=NEXT_OPENID

Parameter	Required	Description
access_token	Yes	The credential for calling the API
next_openid	Yes	The first OpenID to be fetched. If it is left empty, the list is fetched from the beginning.

Response

The JSON packet returned for a successful request:

{
    "total":2,
    "count":2,
    "data":{
    "openid":["OPENID1","OPENID2"]},
    "next_openid":"NEXT_OPENID"
}

Parameter	Description
total	Total number of the Official Account followers
count	Number of the OpenIDs to be fetched. Maximum is 10,000.
data	List data (list of OpenIDs)
next_openid	The OpenID of the last user in the fetched list.

The JSON packet returned for a failed request (in this case, the error is caused by an invalid AppID):

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

Note:

When the number of the Official Account followers exceeds 10,000, you can fetch the list multiple times by entering the value of next_openid.

When the API is called, the next_openid value in the response for the previous request is used as the next_openid value in the current request.

Example:

The Official Account A has 23,000 followers. If you want to obtain the list of all followers, call this API multiple times using the following request URLs: https://api.weixin.qq.com/cgi-bin/user/get?access_token=ACCESS_TOKEN Response:
{
  "total":23000,
  "count":10000,
  "data":{"
     openid":[
        "OPENID1",
        "OPENID2",
        ...,
        "OPENID10000"
     ]
   },
   "next_openid":"OPENID10000"
}https://api.weixin.qq.com/cgi-bin/user/get?access_token=ACCESS_TOKEN&next_openid=NEXT_OPENID1 Response:
{
   "total":23000,
   "count":10000,
   "data":{
     "openid":[
       "OPENID10001",
       "OPENID10002",
       ...,
       "OPENID20000"
     ]
   },
   "next_openid":"OPENID20000"
}https://api.weixin.qq.com/cgi-bin/user/get?access_token=ACCESS_TOKEN&next_openid=NEXT_OPENID2 Response: (When all the followers are returned, the next_openid returned is null):
{
   "total":23000,
   "count":3000,
   "data":{"
       "openid":[
         "OPENID20001",
         "OPENID20002",
         ...,
         "OPENID23000"
       ]
   },
   "next_openid":"OPENID23000"
}