URL to Invoke the ClassIn Client

Get the login client link,Need SID, safekey, timeStamp, provide mobile phone number, the course ID, Class ID,ClassIn client login platform identity, return Can in Pc terminal or mobile terminal arouse ClassIn client links.

Important information remarks on 2021-03-30:
From June 1, 2021, this interface will be adjusted as follows:

  • the returned URL will no longer contain the temporary key authTicket (ClassIn will gradually adjust in batches according to the user account, and all adjustments will be completed on 6.30), that is to say No longer supports the use of the temporary key authTicket password-free login to evoke the client.
  • This adjustment will not have any impact on your API docking program. It will only affect your user's experience, the workflow changes after the application is awakened.

Action item:
Your customer service or operation team is required to communicate this experience change with users in advance:

  • Starting from 2021-06-01, after the user invokes the ClassIn client on the web page for the first time, the program will stay on the login interface and wait for the user to enter the password and click "Login" before entering the classroom.

More notes for your users:

For the mobile terminal ClassIn software will automatically remember the password; for the PC ClassIn, it is strongly recommended that the user check the "remember password" after entering the password so that the next time it is called up, there is no need to enter the password again.
If the user forgets the password, he can click "Forgot Password" on the login page to retrieve the password.



HTTP Request Methods

  • POST

Coding format

  • UTF-8

Request data

key Required More Restrictions Instructions Description
SID Yes Null School ID It is available through the eeo.cn application
safeKey Yes Fixed 32-bit all lowercase characters School authentication security key safeKey=MD5(SECRET+timeStamp)
timeStamp Yes Null imestamp used by safeKey Unix Epoch timeStamp is the number of seconds passed by 00:00 (world standard time) on January 1, 1970
lifeTime No The default is 86400 seconds safeKey the effective time(Unit: second) Null
courseId Yes Null course ID The return value after the course is created
classId Yes Null class ID The return value after the class is created
deviceType No default is 1,behalf PC Platform logo 1 behalf Windows/Mac OS ;2 behalf iOS mobile terminal;3 behalf Android
uid Yes User's UID the user UID returned by the register API

Response data

key Type Sample value meaning
data string classin://www.eeo.cn/enterclass? telephone=001-8006437676& authTicket=04sxvif1bczi6lzs& classId=1424463&courseId=444451& schoolId=1009478 In the website login ClassIn client links
error_info object Return message object
└ errno number 1 The error code
└ error string "Normal execution" Error list


  • HTTP request
POST /partner/api/course.api.php?action=getLoginLinked HTTP/1.1
Host: www.eeo.cn
Content-Type: application/x-www-form-urlencoded
Cache-Control: no-cache

  • Shell cURL analog request instruction
curl -H "Content-Type: application/x-www-form-urlencoded" -X "POST" \
        -d "SID=1234567" \
        -d "safeKey=0f7781b3033527a8cc2b1abbf45a5fd2" \
        -d "timeStamp=1484719085" \
        -d "telephone=001-8006437676" \
        -d "lifeTime=" \
        -d "courseId=332241" \
        -d "classId=1227045" \

Pc terminal response sample(The normal return json packet example)

  "data": "classin://www.eeo.cn/enterclass?telephone=001-8006437676&authTicket=04sxvif1bczi6lzs&classId=1424463&courseId=444451&schoolId=100947",
  "error_info": {
    "errno": 1,
    "error": "程序正常执行"

The client page wakes up the middle prompt page(optional)

Main use:

Use the client page to wake up functionality,There will be a page that prompts the user if it is not started,Or start failure,Please download the installation 'ClassIn' client at 'eeo.cn'.

Results the preview:

Wake up 001-8006437676 ClassIn client account

Instructions for use:

  <a href='https://api.eeo.cn/partner/invoke/classin.html?loginlink'>go into the classroom</a>
  <a href="https://api.eeo.cn/partner/invoke/classin.html?classin://www.eeo.cn/enterclass?telephone=001-8006437676&amp;authTicket=g7cx9tj3fs51n7dm&amp;classId=1213545&amp;courseId=394761&amp;schoolId=1009478">Wake up 001-8006437676 ClassIn client account</a>

Error code instruction

Error code Instruction
1 Expression successful execution.
100 Expression parameter not all or error.
102 Expression dont have permissions(Security verification failed).
104 Expression operation failure(An unknown error).
114 Expression server exception.
134 Expression incorrect phone number format.
142 Expression this course does not have this class information.
143 Expression no such course information.
144 Expression there is no such course under the agency.
145 Expression the class is over.
150 Expression no access to the phone number login key(This cell phone number does not belong to the student or teacher at the school).
212 Expression this class has been removed.
369 Expression open class does not support this operation.
467 The operation only supports accounts of mobile phone numbers. Please bind your mobile number first.
888 The user account was cancelled.

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