Edit an assignment through API - assignment is missing

[NateBu]

I am having trouble with the API editing an assignment. I can create an assignment without any trouble by posting
this message
{assignment:{
  name:`${name}`,
  submission_type:'online_url',
  points_possible:...,
  published:...,
  due_at:...
}}

to  `https://${url}/api/v1/courses/${course_id}/assignments`;

I get back an assignment object and one of the fields is an integer labeled "id". I can check in canvas and the assignment is successfully created. However I can't edit, based on the documentation I've be trying to "PUT" a request e.g.

{assignment:{
  name:`${newname}`,
}}

to  `https://${url}/api/v1/courses/${course_id}/assignments/${assignment_id}`;

where assignment_id is the "id" I got back from the creation request.

When I do this I get the following response

{ errors: [ { message: 'assignment is missing' } ] }

Any ideas what I'm doing wrong? Thanks!

[NateBu · Accepted solution]

Nevermind sorry, this works fine. My utility that called "fetch" in javascript was actually filtering out the body of my request

[jabetrue]

Hi Nate - sorry to crash your thread, but I found yours after posting my own and since you got this to work, it seems like you might have some understanding of how to accomplish what i'm trying to accomplish on my end. If you wouldn't mind taking a look when you have sec I'd really appreciate it. Thanks!

https://community.canvaslms.com/t5/Canvas-Developers-Group/Use-API-to-Copy-specific-Assignments-from...