post
https://staging.mcards.com/api/management/appconfig//images/
Upload an image with a key of item_key. If this key already exists for an image item, it will be updated, otherwise it will be created.
There are two aspect ratio of images supported by the App Config.
Image - 16:9
| xlarge | 3x | 1440x2560 |
| large | 2x | 960x1707 |
| xmedium | 1x | 480x853 |
Plus Image - 19.5:10
| xlarge | 3x | 1421x3000 |
| large | 2x | 948x2000 |
| xmedium | 1x | 474x1000 |