List tasks
List background tasks for the authenticated user with optional filtering.
Results are ordered newest first. Returns 404 when library_id names a
library that does not exist or is not accessible to the authenticated user.
Authorizations
Gumnut API key (apikey_...) sent as a Bearer token in the Authorization header. Create and manage keys in the Gumnut app, or with the API key endpoints while signed in to it.
Query Parameters
Restrict results to tasks owned by this library. When omitted, returns tasks across every library the authenticated user can access.
Return only tasks currently in this execution status.
Status of a background task execution: pending (created and awaiting
processing), started (picked up by a worker and not yet in a terminal
state — the task may be executing or awaiting an automatic retry after a
transient failure), success (completed successfully), or failure
(failed and will not be retried).
pending, started, success, failure Return only tasks of this type.
Kind of background processing a task performs: embedding (compute
the content embedding that powers search), face_detection (detect
faces in an asset), face_clustering (group a library's detected faces
into people), asset_description (generate a natural-language
description of an asset), asset_storage_cleanup (remove stored files
left behind by a permanently deleted asset), asset_version_storage_cleanup (remove stored files of a
superseded asset version), reverse_geocoding (resolve an asset's GPS
coordinates to a place name), video_thumbnail_extract (extract a
thumbnail image from a video), video_metadata_extract (recover a
video's capture time, GPS location, and camera details from the file's
own metadata), thumbhash (compute the blurred
placeholder shown while a thumbnail loads), display_proxy_generation
(generate a browser-displayable rendition of an original the image CDN
cannot transform, such as an oversized or over-dimensioned file),
burst_detection (detect rapid-fire shots of the same moment and stack
them), product_update_subscription (enroll an explicitly opted-in new
user in product-update email delivery), person_metrics_refresh
(recompute the face-matching summary of one person after their faces
change), or quality_scoring (rate an image's photographic quality).
embedding, face_detection, face_clustering, asset_description, asset_storage_cleanup, asset_version_storage_cleanup, reverse_geocoding, video_thumbnail_extract, video_metadata_extract, thumbhash, display_proxy_generation, burst_detection, product_update_subscription, person_metrics_refresh, quality_scoring Maximum number of tasks to return.
1 <= x <= 200Response
Successful Response
Unique task identifier with btask_ prefix
ID of the asset this task processes; null for library-scoped tasks such as face clustering
Kind of background processing a task performs: embedding (compute
the content embedding that powers search), face_detection (detect
faces in an asset), face_clustering (group a library's detected faces
into people), asset_description (generate a natural-language
description of an asset), asset_storage_cleanup (remove stored files
left behind by a permanently deleted asset), asset_version_storage_cleanup (remove stored files of a
superseded asset version), reverse_geocoding (resolve an asset's GPS
coordinates to a place name), video_thumbnail_extract (extract a
thumbnail image from a video), video_metadata_extract (recover a
video's capture time, GPS location, and camera details from the file's
own metadata), thumbhash (compute the blurred
placeholder shown while a thumbnail loads), display_proxy_generation
(generate a browser-displayable rendition of an original the image CDN
cannot transform, such as an oversized or over-dimensioned file),
burst_detection (detect rapid-fire shots of the same moment and stack
them), product_update_subscription (enroll an explicitly opted-in new
user in product-update email delivery), person_metrics_refresh
(recompute the face-matching summary of one person after their faces
change), or quality_scoring (rate an image's photographic quality).
embedding, face_detection, face_clustering, asset_description, asset_storage_cleanup, asset_version_storage_cleanup, reverse_geocoding, video_thumbnail_extract, video_metadata_extract, thumbhash, display_proxy_generation, burst_detection, product_update_subscription, person_metrics_refresh, quality_scoring Deprecated alternate task identifier. Use id instead.
Status of a background task execution: pending (created and awaiting
processing), started (picked up by a worker and not yet in a terminal
state — the task may be executing or awaiting an automatic retry after a
transient failure), success (completed successfully), or failure
(failed and will not be retried).
pending, started, success, failure Result summary produced by a completed task; null until success
Stable outcome code whose meaning depends on task_type. For a successful face_detection task: ran means detection ran, possibly finding no faces; skipped_photo_location means automatic detection is not offered at the photo's location; skipped_location_unread means the photo has no location and its file's metadata has not been read; skipped_owner_off means the library owner had not turned detection on when the photo was processed; skipped_owner_region means detection is not offered in the owner's home region. Turning detection on later does not process earlier photos. Null for other task types, tasks that have not succeeded, and skips with no explanation, such as files that are not images. Each task reports its own run. Codes may be added for any task type; treat an unrecognized code as no explanation.
Error detail from the most recent failed or retried attempt; not cleared by a later success, so it can be non-null on a task that failed transiently and then succeeded. Null if no attempt has failed
Retry and rescue bookkeeping value for this task. Zero before any automatic retry or stuck-task rescue; not guaranteed to be a cumulative delivery count
When the task record was created (ISO 8601); dispatch to the task queue follows separately, after the creating transaction commits
When a worker most recently began executing the task, or when the stuck-task reaper rescued it back to pending (ISO 8601). Because a rescue can re-enqueue a task no worker ever picked up, a non-null value does not prove a worker has run the task
When the task finished, whether successfully or not (ISO 8601); null until then