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POST
/
calendar
/
event
/
upsert
Upsert calendar event
curl --request POST \
  --url 'https://api.flashcat.cloud/calendar/event/upsert?app_key=' \
  --header 'Content-Type: application/json' \
  --data '
{
  "cal_id": "cal.QiNvtdKs4Wj52kZhT3LafM",
  "summary": "Labour Day",
  "start_at": "2024-05-01",
  "end_at": "2024-05-06",
  "is_off": true,
  "description": "International Workers Day holiday"
}
'
{
  "request_id": "01HK8XQE3Z7JM2NTFQ5YJ8P9R4",
  "data": {
    "cal_id": "cal.QiNvtdKs4Wj52kZhT3LafM",
    "event_id": "cale.KyG9XWTCU5CucbwukEVBQ4",
    "summary": "Test Holiday"
  }
}

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

Calendar event upsert request. Provide event_id to update an existing event; omit it to create a new one.

​
cal_id
string
required

Calendar ID.

​
summary
string
required

Event summary.

Required string length: 1 - 39
​
start_at
string
required

Event start date in YYYY-MM-DD.

​
end_at
string
required

Event end date in YYYY-MM-DD (exclusive).

​
is_off
boolean
required

Whether the event marks a non-working day. true = day off, false = working day override.

​
event_id
string

Event ID. Omit when creating.

Maximum string length: 63
​
description
string

Event description.

Maximum string length: 499

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

Response returned by /calendar/event/upsert.