Why is the /entries endpoint empty after successfully POSTing an entry?

[taylori]

**********SOLVED: This has been solved as the subdomain had to be my institution and not "canvas".************

Why does the GET /entries endpoint return an empty array even after I successfully POST an entry?

GET https://canvas.instructure.com/api/v1/courses/:course_id/discussion_topics/:topic_id/view  

This returns all the entries just fine.

GET https://canvas.instructure.com/api/v1/courses/:course_id/discussion_topics/:topic_id/entries  

This returns [] .

Here's the 201 response body I received on the successful POST an entry:

{
"id": 130960000000035494,
"user_id": ########,
"parent_id": null,
"created_at": "2019-01-15T15:41:23Z",
"updated_at": "2019-01-15T15:41:23Z",
"rating_count": null,
"rating_sum": null,
"user_name": "Ian Taylor",
"message": "Ian's testing the API integration!",
"user": {
"id": ########,
"display_name": "Ian Taylor",
"avatar_image_url": #####,
"html_url": #####
},
"read_state": "read",
"forced_read_state": false
}

I (wrongly I guess?) assumed that I could then send this request to get the replies on that created entry:

GET https://canvas.instructure.com/api/v1/courses/:course_id/discussion_topics/:topic_id/entries/130960000000035494/replies

But I get a 404???

{
"errors": [
{
"message": "The specified resource does not exist."
}
],
"error_report_id": 130960000000327336
}

[taylori · Accepted solution]

This has been solved as the subdomain had to be my institution and not "canvas".