API - extras/image-attachments - Filter by Device/Rack/Site/...

[Yentel]

Environment

• Python version: 3.7.3
• NetBox version: 2.8.5

Proposed Functionality

As of now, using the api endpoint to retrieve images by device/site/rack is only possible by retrieving all image-attachments and then locally looping through them to find the required images. This is possible of course, but not scalable at all.
There is, according to the documentation, no possibility to filter this endpoint. The only two possible filters are limit and offset.

Another possibility is by adding a series of images to the respective parent objects (device,rack,site,...) themselves.

Use Case

Retrieving images for a certain object (device with id X, rack with id Y, site with id Z, ...)

Database Changes

None required as these objects are already linked to their models.

External Dependencies

None as far as I can think of.

[jeremystretch]

Related to #4897

[Yentel]

Is there a possibility that this has not been resolved by this commit?

GET https://netbox.mycompany.com/api/extras/image-attachments/?content_type=dcim.device&object_id=2250 resulted in a 400 Bad Request response: {"content_type":["Select a valid choice. That choice is not one of the available choices."]}

However, when requesting the list option (/extras/image-attachments/), I get the object returned for which I'm looking.

{
        "id": 10,
        "url": "http://netbox.mycompany.com/api/extras/image-attachments/10/",
        "content_type": "dcim.device",
        "object_id": 2250,
        "parent": {
                "id": 2250,
                "url": "http://netbox.mycompany.com/api/dcim/devices/2250/",
                "name": "ROUTER",
                "display_name": "ROUTER"
        },
        "name": "",
        "image": "http://netbox.mycompany.com/media/image-attachments/device_2250_image33.jpg",
        "image_height": 1155,
        "image_width": 1540,
        "created": "2020-08-06T09:23:13.870529+02:00"
}