post
https://console.neon.tech/api/v2/projects//branches//buckets//objects//presign
Returns a presigned URL that transfers bytes directly to or from the
object's bucket on the specified branch, without the caller ever
handling S3 credentials. The operation field selects the direction:
uploadreturns a presignedPUTURL (the callerPUTs the file
bytes straight tourlwith the returnedheaders). Authorized with
project write access.downloadreturns a presignedGETURL (the callerGETs the
bytes straight fromurl). Authorized with project read access.
The platform mints a short-lived credential and builds the SigV4-signed
URL against the branch's S3 data-plane host, returning it together with
the HTTP method, any headers the caller must echo, and the URL's expiry.
Served by the user's session (no customer S3 credentials required).
Note: This endpoint is currently in Private Beta.