Not able to create or update entity records(data) through POSTMAN.

[ManojBhosale]

There are some entities for which we are not able to either update or create data through POSTMAN.

The list of such entities is: 

Entity	API Endpoint	Error In Postman
Course	/api/v1/accounts/:account_id/courses	After creating data, getting 200 OK, but the created data is not visible in the list of courses.
Course	/api/v1/courses/:id	Getting error: 422 unprocessable_entity while updating a course.
Enrollments	/api/v1/courses/:course_id/enrollments	Getting error: 403 Forbidden - user not authorized to perform that action while enrolling an user.
Users	api/v1/accounts/:account_id/users	Getting error: 422 unprocessable_entity while creating new user.
Users	/api/v1/users/:id	Getting updated, but after update not getting retrieved i.e. not showing in list(read)
Group Categories	/api/v1/courses/:course_id/group_categories	Getting error: unprocessable_entity while creating Group Category
Group Categories	/api/v1/group_categories/:group_category_id	Not updated, getting error: unprocessable_entity
Group Memberships	/api/v1/groups/:group_id/memberships/:membership_id	Not getting updated. Error: unprocessable_entity
Group Memberships	/api/v1/groups/:group_id/users/:user_id	Not getting updated. Error: unprocessable_entity
Quiz Questions	api/v1/courses/:course_id/quizzes/:quiz_id/questions	Not getting created.  Error: unprocessable_entity
Quiz Questions	api/v1/courses/:course_id/quizzes/:quiz_id/questions/:id	Not getting updated, error: unprocessable_entity
Quiz Submissions	api/v1/courses/:course_id/quizzes/:quiz_id/submissions	Not getting created.  Error: unprocessable_entity
Quiz Submissions	api/v1/courses/:course_id/quizzes/:quiz_id/submissions/:id	Getting error of unprocessable entity while updating student question scores and comments.
Quizzes	api/v1/courses/:course_id/quizzes	Not getting created, error: unprocessable_entity
Quizzes	api/v1/courses/:course_id/quizzes/:id	Not getting updated, error: unprocessable_entity
Submissions	api/v1/courses/:course_id/assignments/:assignment_id/submissions	While submitting an assignment getting error: The specified resource does not exist
Discussion Topics	/api/v1/courses/:course_id/discussion_topics	Not getting created, Error: unprocessable_entity
Discussion Topics	/api/v1/courses/:course_id/discussion_topics/:topic_id	Not getting updated, error: The specified resource does not exist
Discussion Topics	/api/v1/groups/:group_id/discussion_topics/:topic_id	Not getting updated, error: unprocessable_entity
Discussion Topics	/api/v1/courses/:course_id/discussion_topics/:topic_id/entries/:id	Not getting updated the entry , error: unprocessable_entity
Discussion Topics	/api/v1/groups/:group_id/discussion_topics/:topic_id/entries/:id	Not getting updated the entry , error: unprocessable_entity
Roles	api/v1/accounts/:account_id/roles	Not getting created, error:unprocessable_entity
Sections	/api/v1/sections/:id	Section not updated error:unprocessable_entity

We are ensuring to provide the possible required parameters while requesting through postman.

So, can we get some detailed reference to resolve this problem?

[ColinMurtaugh]

It's going to be tough for anyone to figure out what's going wrong without some more details about the data you're sending. Can you pick one one or two of these requests (maybe the create / update course requests) and share the full details?

[ManojBhosale]

For Course entity- while updating through postman getting "422 unprocessable_entity" error. Attached the screenshots for more reference to know about request and response.

Note: Max attachments allowed is 5, so sending one more screenshot related to this problem in the separate reply.

[ColinMurtaugh]

These screenshots aren't particularly helpful; it's difficult or impossible to really see the full details of your PUT request. Postman can generate code snippets (in various languages - python or js would probably be most useful here) that would be more easily shared in this forum.

In any case -- if I were you I would start by paring back your request as much as possible. Start by just trying to update one field. If that works, keep adding fields until you find the one that's causing the problem. If you can't get a single field to update, there's probably something wrong with your auth token. 

[ManojBhosale]

Reference screenshot for error response while updating course entity.

[JamesSekcienski]

@ManojBhosale 

Are you an admin on the domain you are using in your requests?  If you are attempting to do this on the canvas.instructure.com domain and you aren't an admin and/or teacher in the course, this is likely why you are receiving these errors.

Also, what are you trying to accomplish with all of these requests?

[ManojBhosale]

@JamesSekcienski , thank you for your reply. Yes, I am having the admin access on the domain that is used in making the request. But still facing problem while updating this course and this problem is with some other entities(resources) also. Please provide any possible solution that can work here. Waiting for your reply!