create_upload_link

com.datavrn/schedule-iii · Verify this server

Mint a single-use, login-free upload link so a file reaches Datavrn WITHOUT passing through your context, where it cannot truncate or corrupt. Use this whenever a human has the file (a trial balance export, etc.) — and also whenever YOU hold the file and it is larger than about 10 KB. This is the RELIABLE path at that size: inlined base64 mutates often enough that the damage arrives as a plausible-looking trial balance rather than an obvious error, while the link delivers the bytes byte-perfect. Two ways to deliver the file: a HUMAN opens upload_url in their browser and chooses the file; a PROGRAMMATIC caller that already holds the file on disk POSTs it to the SEPARATE upload_post_url as a multipart form with a single `file` field (upload_url is the human page and will not accept a POST). The POST reply carries received_file_hash — compare it to your local sha256 before confirming the mapping. The link stages the file for ONE entity and expires in about 15 minutes; nothing is ingested until the column mapping is confirmed.