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POST
/
calendar
/
update
Update calendar
curl --request POST \
  --url 'https://api.flashcat.cloud/calendar/update?app_key=' \
  --header 'Content-Type: application/json' \
  --data '
{
  "cal_id": "cal.QiNvtdKs4Wj52kZhT3LafM",
  "cal_name": "Production On-Call Calendar (Updated)",
  "timezone": "America/New_York",
  "workdays": [
    1,
    2,
    3,
    4,
    5
  ]
}
'
{
  "request_id": "01HK8XQE3Z7JM2NTFQ5YJ8P9R4",
  "data": {}
}

Documentation Index

Fetch the complete documentation index at: https://docs.flashcat.cloud/llms.txt

Use this file to discover all available pages before exploring further.

Restrictions

AspectValue
Rate limits1,000 requests/minute; 50 requests/second per account
PermissionsCalendars Manage (on-call)

Authorizations

app_key
string
query
required

App key issued from the Flashduty console under Account → APP Keys. Required on every public API call. Keep it secret — it grants the same access as the owning account.

Body

application/json

Update calendar request. cal_id is required; all other fields are optional and only applied when provided.

cal_id
string
required

Calendar ID.

cal_name
string

New calendar name.

Required string length: 1 - 39
description
string

New description.

Maximum string length: 499
timezone
string

New IANA timezone.

team_id
integer<int64>

New owning team ID.

workdays
integer[]

Workday numbers (0 = Sunday, 6 = Saturday).

Required range: 0 <= x <= 6
extra_cal_ids
string[]

Additional public-holiday calendar IDs to inherit events from.

Response

Success

Success response envelope. On every 2xx response, request_id identifies the call (also mirrored in the Flashcat-Request-Id header) and data holds the endpoint-specific payload. Failure responses use a different shape — see ErrorResponse.

request_id
string
required

Unique ID for this request. Mirrored in the Flashcat-Request-Id response header. Include it when reporting issues.

Example:

"01HK8XQE3Z7JM2NTFQ5YJ8P9R4"

data
object
required

Empty response body.