https://developer.thehaystack.ai/api-reference/endpoints/items-artwork-upload
Upload Item Artwork - Haystack API
Upload artwork for an item as multipart/form-data. Supports four variants: square, wide, ultraWide, vertical. Max size 15 MB.
upload itemartworkhaystackapi
https://developers.arcgis.com/rest/enterprise-administration/enterprise/upload-service-item-info/
Upload (Item Info) | ArcGIS REST APIs | Esri Developer
This operation uploads a file associated with a service's item information to the server.
upload itemrest apisinfoarcgisesri