# code2accessToken
本接口应在后端服务器调用
To check login credentials, acquire a temporary login credential code via the wx.login() interface, then pass it to the developer server and call the interface to complete the login process. See the Mini Program Login for more instructions.
# URL
GET https://api.weixin.qq.com/sns/jscode2session?appid=APPID&secret=SECRET&js_code=JSCODE&grant_type=authorization_code
# 请求Parameter
| property | type | default value | optional | description | version |
|---|---|---|---|---|---|
| appid | string | yes | Mini Program appId | ||
| secret | string | yes | Mini Program appSecret | ||
| js_code | string | yes | The code acquired at login | ||
| grant_type | string | yes | Authorization type. You only need to enter the authorization_code here |
# Return
# Object
Returned JSON data package
| property | type | description | version |
|---|---|---|---|
| openid | string | User's unique identifier | |
| session_key | string | Session key | |
| uinionid | string | The unique identifier of a user on the Open Platform, which. returns when satisfying the requirements of UnionID issuing. For details, see UnionID Mechanism Explanation. | |
| errcode | number | Error code | |
| errMsg | string | Error message |
errcode 's struct
| value | description |
|---|---|
| -1 | System busy, the developer is requested to try again later |
| 0 | Request successful |
| 40029 | Code invalid |