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Overview:

   Sunbird batch unenroll API is built to facilitate user to unenroll from an active open batch As of now open batch is allowing user to do the enrollment , but there is no option for un-enrollment.

Problem Statement:

   How to empower  Allow user to unenroll from an active open batch by their own.

Proposed Solution 1:

     We need to construct a new API for the same. This API needs the user to provide valid userid, batchid and courseid to un-enroll them. In this proposed solution, we will add a new column namely 'isunenrollmentallowed' (boolean) in the  table sunbird.course_batch to indicate if unenrollment from a given batch is allowed or not.

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• Name and value of the column is self-explanatory and readable.
• Can use the value in a code directly. No need for extra processing.

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• As the batch related permissions become more granular in future, we must need to add new columns.

Proposed Solution 2:

     In this proposed solution, we can add a new column called 'permissions' (bitmap) for different permissions applicable on the batch for any course. Based on that permission, we can decide to unenroll the particular user from that batch.

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• The permissions field can be used to incorporate any other new permission added in the future.

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• Need extra efforts to process the value retrieved from database. We need to iterate through each bit.

Batch Unenroll API:

        Method: POST

        URL: /v1/user/courses/unenroll

        Headers: Authorization, X-Authenticated-User-Token

        Request Body:          

{ "params": { }, 
  "request": { 
		“userid” : “string”, 
		“batchid” : “string”, 
		“courseid”: ”string” 
	} 
}

...

do the un-enrollment from open batch , if batch is not closed or user haven't completed it.

Proposed Solution :

     Provide a new api for un-enrollment of open batch. Api request structure will be as follow.