POST/v1/uploads

Start a multipart upload

create_upload

Opens an upload session for a large file (up to the installation's limit for multipart uploads, 5 GB by default): the name, the content type, the size and the purpose, which says what will use the upload: card_file (POST /v1/cards), archive (POST /v1/cards/archive) or import_attachment (an attachment of a custom source document). The response has the id (upl_ followed by 32 hex characters), the part size part_size and the number of parts part_count. Every part except the last is exactly part_size bytes (from 5 to 100 MiB), and the last part is the remainder. An incomplete upload lives for 24 hours (expires_at).

A file name extension outside the formats of the purpose returns 415 uploads.unsupported_format (an import attachment accepts any extension). A file larger than the installation's limit or the organization's total storage under its plan returns 413 uploads.too_large. Not enough storage left, counting the organization's incomplete uploads, returns 402 limits.storage.

Parts go through Sursa (PUT /v1/uploads/{upload_id}/parts/{n}) and are encrypted with the organization's key in file storage; there are no direct links to the storage. Only the API key or user that created the upload can see and use it. Added in 1.62.0.

Authentication

Send an API key in the Authorization header: Authorization: Bearer <key>.

Header parameters

Idempotency-Keystring
Key for a safe retry of a write: 1 to 255 printable ASCII characters; a UUID v4 per logical operation is recommended. A retry with the same key within 24 hours does not run the operation again: it returns the saved response (status, headers and body) with the Idempotency-Replayed: true header. The same key with a different method, path, Content-Type or body returns 409 api.idempotency_mismatch; while the first request is still running, 409 api.idempotency_in_progress with Retry-After: 1. After a 5xx or 429 response the key is released, and a retry runs the operation again. The key is scoped to the organization and the caller (API key, user, or custom source key).
length ≥ 1, length ≤ 255

Request body

application/json

Object: UploadCreate

filenamestringrequired
The file name with its extension; the extension selects the format.
length ≥ 1, length ≤ 255
content_typestring
The declared content type (MIME); it is compared with the file signature.
length ≤ 255
sizeinteger (int64)required
The file size in bytes.
≥ 1
purposeUploadPurposerequired
sha256string
The SHA-256 of the file, if known in advance; complete compares its checksum with it.

Responses

201The upload session is created.

Response headers

RateLimit-Policy
Limits in effect, in the format of the IETF draft draft-ietf-httpapi-ratelimit-headers: comma-separated items "<name>";q=<quota>;w=<window in seconds>. key is the request rate of the API key (the quota is the burst, the window is the time to refill it fully; for a session it is user, without credentials ip); minute, day and month are the organization's quotas for the calendar minute, day and month in UTC.
RateLimit
What is left of each limit in RateLimit-Policy: "<name>";r=<remaining>;t=<seconds until reset>.
X-RateLimit-Limit
Limit of the strictest entry in RateLimit-Policy (the one with the fewest requests left).
X-RateLimit-Remaining
Requests left under the strictest limit.
X-RateLimit-Reset
Seconds until the strictest limit resets.
Idempotency-Replayed
true means the response was replayed from the saved one for this Idempotency-Key: the operation did not run again.

application/json

Object: Upload

idstringrequired
The upload ID (upl_ followed by 32 hex characters).
purposeUploadPurposerequired
filenamestringrequired
The file name (without folders).
content_typestringrequired
The declared content type; empty if not declared.
sizeinteger (int64)required
The file size in bytes.
sha256string | nullrequired
The SHA-256 of the file, declared at creation or at complete; null if not known yet.
statusUploadStatusrequired
part_sizeinteger (int64)required
The size of each part except the last (from 5 to 100 MiB).
part_countintegerrequired
The number of parts.
≥ 1, ≤ 1000
parts_receivedintegerrequired
The number of received parts.
≥ 0
partsarray of UploadPartrequired
The received parts by number (empty in the POST /v1/uploads response).
reject_reasonstring | nullrequired
The rejection reason (rejected): checksum_mismatch, type_mismatch, unsupported_format, infected, scan_unavailable, unsafe_content. The enumeration may grow; null if not rejected.
reject_detailsobject | nullrequired
Details of the rejection (the extension, the declared and detected format, checksums); null if not rejected.
created_atstring (date-time)required
When the upload was created.
expires_atstring (date-time)required
The deadline to complete the upload and, once it is ready, to use it.
completed_atstring (date-time) | nullrequired
When the check finished (ready or rejected).
consumed_atstring (date-time) | nullrequired
When the upload was used (by a card, an archive or an import).

401No credentials were sent (neither a session cookie nor an API key), or the key was not found.

Response headers

RateLimit-Policy
Limits in effect, in the format of the IETF draft draft-ietf-httpapi-ratelimit-headers: comma-separated items "<name>";q=<quota>;w=<window in seconds>. key is the request rate of the API key (the quota is the burst, the window is the time to refill it fully; for a session it is user, without credentials ip); minute, day and month are the organization's quotas for the calendar minute, day and month in UTC.
RateLimit
What is left of each limit in RateLimit-Policy: "<name>";r=<remaining>;t=<seconds until reset>.
X-RateLimit-Limit
Limit of the strictest entry in RateLimit-Policy (the one with the fewest requests left).
X-RateLimit-Remaining
Requests left under the strictest limit.
X-RateLimit-Reset
Seconds until the strictest limit resets.

application/json

Object: Error

402The organization has reached a plan limit (cards, storage or users). `error.details` holds `kind`, `limit` and `used`.

Response headers

RateLimit-Policy
Limits in effect, in the format of the IETF draft draft-ietf-httpapi-ratelimit-headers: comma-separated items "<name>";q=<quota>;w=<window in seconds>. key is the request rate of the API key (the quota is the burst, the window is the time to refill it fully; for a session it is user, without credentials ip); minute, day and month are the organization's quotas for the calendar minute, day and month in UTC.
RateLimit
What is left of each limit in RateLimit-Policy: "<name>";r=<remaining>;t=<seconds until reset>.
X-RateLimit-Limit
Limit of the strictest entry in RateLimit-Policy (the one with the fewest requests left).
X-RateLimit-Remaining
Requests left under the strictest limit.
X-RateLimit-Reset
Seconds until the strictest limit resets.

application/json

Object: Error

403The action is not allowed: the role is insufficient, there is no access to the collection or card, the request runs in “View as” mode, or the organization is suspended or deleted (`detail` is an object with `code: org_suspended | org_deleted`).

Response headers

RateLimit-Policy
Limits in effect, in the format of the IETF draft draft-ietf-httpapi-ratelimit-headers: comma-separated items "<name>";q=<quota>;w=<window in seconds>. key is the request rate of the API key (the quota is the burst, the window is the time to refill it fully; for a session it is user, without credentials ip); minute, day and month are the organization's quotas for the calendar minute, day and month in UTC.
RateLimit
What is left of each limit in RateLimit-Policy: "<name>";r=<remaining>;t=<seconds until reset>.
X-RateLimit-Limit
Limit of the strictest entry in RateLimit-Policy (the one with the fewest requests left).
X-RateLimit-Remaining
Requests left under the strictest limit.
X-RateLimit-Reset
Seconds until the strictest limit resets.

application/json

Object: Error

413The request body exceeds the allowed size.

Response headers

RateLimit-Policy
Limits in effect, in the format of the IETF draft draft-ietf-httpapi-ratelimit-headers: comma-separated items "<name>";q=<quota>;w=<window in seconds>. key is the request rate of the API key (the quota is the burst, the window is the time to refill it fully; for a session it is user, without credentials ip); minute, day and month are the organization's quotas for the calendar minute, day and month in UTC.
RateLimit
What is left of each limit in RateLimit-Policy: "<name>";r=<remaining>;t=<seconds until reset>.
X-RateLimit-Limit
Limit of the strictest entry in RateLimit-Policy (the one with the fewest requests left).
X-RateLimit-Remaining
Requests left under the strictest limit.
X-RateLimit-Reset
Seconds until the strictest limit resets.

application/json

Object: Error

415The file format is not supported.

Response headers

RateLimit-Policy
Limits in effect, in the format of the IETF draft draft-ietf-httpapi-ratelimit-headers: comma-separated items "<name>";q=<quota>;w=<window in seconds>. key is the request rate of the API key (the quota is the burst, the window is the time to refill it fully; for a session it is user, without credentials ip); minute, day and month are the organization's quotas for the calendar minute, day and month in UTC.
RateLimit
What is left of each limit in RateLimit-Policy: "<name>";r=<remaining>;t=<seconds until reset>.
X-RateLimit-Limit
Limit of the strictest entry in RateLimit-Policy (the one with the fewest requests left).
X-RateLimit-Remaining
Requests left under the strictest limit.
X-RateLimit-Reset
Seconds until the strictest limit resets.

application/json

Object: Error

422Validation error: the body or parameters do not match the schema (`detail` is a list of validation errors), or a parameter value is out of range (`detail` is a message).

Response headers

RateLimit-Policy
Limits in effect, in the format of the IETF draft draft-ietf-httpapi-ratelimit-headers: comma-separated items "<name>";q=<quota>;w=<window in seconds>. key is the request rate of the API key (the quota is the burst, the window is the time to refill it fully; for a session it is user, without credentials ip); minute, day and month are the organization's quotas for the calendar minute, day and month in UTC.
RateLimit
What is left of each limit in RateLimit-Policy: "<name>";r=<remaining>;t=<seconds until reset>.
X-RateLimit-Limit
Limit of the strictest entry in RateLimit-Policy (the one with the fewest requests left).
X-RateLimit-Remaining
Requests left under the strictest limit.
X-RateLimit-Reset
Seconds until the strictest limit resets.

application/json

Object: Error

429Too many requests (`api.rate_limited`), the organization's quota for the minute, day or month is used up (`api.quota_exceeded`; `error.details` holds `quota`, `limit` and `reset_at`), the organization's limit is reached, or the answer service is busy (`answers.engine_busy`). Wait for the time in the `Retry-After` header.

Response headers

Retry-After
Number of seconds to wait before you retry the request.
RateLimit-Policy
Limits in effect, in the format of the IETF draft draft-ietf-httpapi-ratelimit-headers: comma-separated items "<name>";q=<quota>;w=<window in seconds>. key is the request rate of the API key (the quota is the burst, the window is the time to refill it fully; for a session it is user, without credentials ip); minute, day and month are the organization's quotas for the calendar minute, day and month in UTC.
RateLimit
What is left of each limit in RateLimit-Policy: "<name>";r=<remaining>;t=<seconds until reset>.
X-RateLimit-Limit
Limit of the strictest entry in RateLimit-Policy (the one with the fewest requests left).
X-RateLimit-Remaining
Requests left under the strictest limit.
X-RateLimit-Reset
Seconds until the strictest limit resets.

application/json

Object: Error

Error codes

Codes this endpoint can return in error.code, besides the general codes of every request.

Safe retries

Send an Idempotency-Key header (for example a UUID) with each POST and PATCH. A retry with the same key within 24 hours returns the saved response instead of running the request again.

Rate limits

Responses carry the RateLimit and RateLimit-Policy headers and the earlier X-RateLimit-Limit, X-RateLimit-Remaining and X-RateLimit-Reset. A 429 response has Retry-After in seconds: wait and retry.

← uploads · API reference

curl -X POST 'https://api.sursa.com/v1/uploads' \
  -H "Idempotency-Key: $(uuidgen)" \
  -H "Content-Type: application/json" \
  -d '{"filename":"document.pdf","size":1,"purpose":"card_file"}' \
  -H "Authorization: Bearer $SURSA_API_KEY"

Try it

API key

The key stays in the memory of this tab and is sent only to https://api.sursa.com.

Requests act on the real data of your organization.

Idempotency-Key header

Idempotency-Key

A new key is generated for each request when this is empty.

Request body (JSON)