Presigned R2 GET plan by content hash (one round-trip)

POST

/v1/datasets/download/presign-by-hash

curl --request POST \
  --url https://example.com/v1/datasets/download/presign-by-hash \
  --header 'Content-Type: application/json' \
  --data '{ "name": "example", "content_hash": "example", "path": "", "ttl_seconds": 300 }'

Resolve a file by its BLAKE3 content hash within the caller’s own dataset and return the presigned GET plan in ONE round-trip (the git smudge fast path — no tree listing, no separate presign call). Read-only: never creates an alias row. {found: false} on miss.

Parameters

Header Parameters

x-api-key

string | null

Request Body ^required

Media type application/json

PresignByHashBody

object

name

required

string

content_hash

required

string

path

string

""

ttl_seconds

integer

default: 300

Responses

200

Successful Response

Media type application/json

Example ^generated

example

422

Validation Error

Media type application/json

HTTPValidationError

object

detail

Array<object>

ValidationError

object

loc

required

Location

Array<string | integer>

msg

required

Message

string

type

required

Error Type

string

input

ctx

Context

object

Example ^generated

{
  "detail": [
    {
      "loc": [
        "example"
      ],
      "msg": "example",
      "type": "example",
      "input": "example",
      "ctx": {}
    }
  ]
}