post https://{your-bynder-domain}/api/v4/media/save/
For metaproperties that use options (Select, Select2, Autocomplete), modifying an asset's metaproperty options should be done via option UUID's for the API to work optimally, sending name or label values will be deprecated in the future. Other metaproperties (Date, Text and Longtext), values can be submitted directly. Note: A preview for the asset will show even while metadata is being processed. Process time for metadata varies based on several factors, and is not expected to complete instantaneously.