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POST/v1/announcements

Send a must-read announcement

create_announcement

Requires COLLECTION_ANNOUNCE on the card. The audience is groups and people; at sending, the recipients are resolved from the group members, and only the people who can access the card stay. Without scheduled_send_at, the announcement is sent right away; with a date, it is sent later. Recipients get a KNOWLEDGE_ALERT task; the announcement becomes a card comment. An API key names the sender in sender_id (since 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: AnnouncementCreate

  • card_idstringrequired
  • notestring

    Default: ""length ≤ 700

  • user_idsarray of integer
  • group_idsarray of integer
  • scheduled_send_atstring (date-time) | null
  • sender_idinteger

    Sender of the announcement when an API key calls (since 1.62.0): an active user of the key's organization; recipients see the announcement from this user (created_by). Required for a key (otherwise 422 validation.failed); a user of another organization or an inactive user returns 404 users.not_found. The permission to announce on the card is checked for the key. In a session, the sender is the signed-in user: a different sender_id returns 422 validation.failed.

    ≥ 1

Responses

201Sent or scheduled

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: Announcement

  • idintegerrequired
  • card_idstringrequired
  • card_titlestringrequired
  • collectionstringrequired
  • created_byintegerrequired
  • created_by_namestringrequired
  • notestringrequired
  • scheduled_send_atstring (date-time) | null
  • sent_atstring (date-time) | null
  • last_auto_reminder_atstring (date-time) | null
  • last_manual_reminder_atstring (date-time) | null
  • comment_idinteger | null
  • created_atstring (date-time)required
  • audiencearray of AnnouncementAudiencerequired
  • recipientAnnouncementRecipient | null

    Marks of the caller, if the caller is a recipient.

400The request is invalid: a parameter value or the state of the object does not allow the action (`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

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

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

404The object does not exist or is not available to you. The API does not confirm that a restricted object exists.

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.

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