---
title: "Create Alert State Timeline"
method: POST
path: "/alert-state-timeline"
tags: ["Alert State Timeline"]
---

# Create Alert State Timeline

`POST /alert-state-timeline`

## Request

- Base URL: `https://oneuptime.com/api`
- URL: `https://oneuptime.com/api/alert-state-timeline`
- Auth: API key in header `APIKey`
- TypeScript: <https://skmtc.dev/oneuptime/apis/oneuptime-openapi-specification/docs/alert-state-timeline/post.ts> (a function with typed inputs; its response is checked against the schema)

Endpoint to create a new Alert State Timeline

## Request body

- object
  - `data` AlertStateTimelineCreateSchema, required: Create schema for AlertStateTimeline model. Create
    - `projectId` string, uuid: ID of your OneUptime Project in which this object belongs. Permissions - Create: [Project Owner, Project Admin, Project Member, Alert Admin, Alert Member, Create Alert State Timeline], Read: [Project Owner, Project Admin, Project Member, Viewer, Alert Admin, Alert Member, Alert Viewer, Read Alert State Timeline], Update: [No access - you don't have permission for this operation]
    - `alertId` string, uuid, required: Relation to Alert ID in which this resource belongs. Permissions - Create: [Project Owner, Project Admin, Project Member, Alert Admin, Alert Member, Create Alert State Timeline], Read: [Project Owner, Project Admin, Project Member, Viewer, Alert Admin, Alert Member, Alert Viewer, Read Alert State Timeline], Update: [No access - you don't have permission for this operation]
    - `alertStateId` string, uuid, required: Alert State ID Relation. Which alert state does this alert change to? Permissions - Create: [Project Owner, Project Admin, Project Member, Alert Admin, Alert Member, Create Alert State Timeline], Read: [Project Owner, Project Admin, Project Member, Viewer, Alert Admin, Alert Member, Alert Viewer, Read Alert State Timeline], Update: [Project Owner, Project Admin, Project Member, Alert Admin, Alert Member, Edit Alert State Timeline]
    - `rootCause` string: What is the root cause of this status change? Permissions - Create: [Project Owner, Project Admin, Project Member, Alert Admin, Alert Member, Create Alert State Timeline], Read: [Project Owner, Project Admin, Project Member, Viewer, Alert Admin, Alert Member, Alert Viewer, Read Alert State Timeline], Update: [No access - you don't have permission for this operation]
    - `endsAt` object: When did this status change end? Permissions - Create: [Project Owner, Project Admin, Project Member, Alert Admin, Alert Member, Create Alert State Timeline], Read: [Project Owner, Project Admin, Project Member, Viewer, Alert Admin, Alert Member, Alert Viewer, Read Alert State Timeline], Update: [No access - you don't have permission for this operation]
    - `startsAt` object: When did this status change? Correct this when the recorded time is wrong - every measurement derived from this timeline is recomputed from the corrected value. Permissions - Create: [Project Owner, Project Admin, Project Member, Alert Admin, Alert Member, Create Alert State Timeline], Read: [Project Owner, Project Admin, Project Member, Viewer, Alert Admin, Alert Member, Alert Viewer, Read Alert State Timeline], Update: [Project Owner, Project Admin, Project Member, Alert Admin, Alert Member, Edit Alert State Timeline]

## Response `201`

Created successfully

- object
  - `data` AlertStateTimelineReadSchema: Read schema for AlertStateTimeline model. Read
    - `_id` string, uuid: ID of this object. Permissions - Create: [Project Owner, Project Admin, Project Member, Alert Admin, Alert Member, Create Alert State Timeline], Read: [Project Owner, Project Admin, Project Member, Viewer, Alert Admin, Alert Member, Alert Viewer, Read Alert State Timeline], Update: [Project Owner, Project Admin, Project Member, Alert Admin, Alert Member, Edit Alert State Timeline]
    - `createdAt` object: Date and Time when the object was created. Permissions - Create: [Project Owner, Project Admin, Project Member, Alert Admin, Alert Member, Create Alert State Timeline], Read: [Project Owner, Project Admin, Project Member, Viewer, Alert Admin, Alert Member, Alert Viewer, Read Alert State Timeline], Update: [Project Owner, Project Admin, Project Member, Alert Admin, Alert Member, Edit Alert State Timeline]
    - `updatedAt` object: Date and Time when the object was updated. Permissions - Create: [Project Owner, Project Admin, Project Member, Alert Admin, Alert Member, Create Alert State Timeline], Read: [Project Owner, Project Admin, Project Member, Viewer, Alert Admin, Alert Member, Alert Viewer, Read Alert State Timeline], Update: [Project Owner, Project Admin, Project Member, Alert Admin, Alert Member, Edit Alert State Timeline]
    - `deletedAt` object: Date and Time when the object was deleted. Permissions - Create: [Project Owner, Project Admin, Project Member, Alert Admin, Alert Member, Create Alert State Timeline], Read: [Project Owner, Project Admin, Project Member, Viewer, Alert Admin, Alert Member, Alert Viewer, Read Alert State Timeline], Update: [Project Owner, Project Admin, Project Member, Alert Admin, Alert Member, Edit Alert State Timeline]
    - `projectId` string, uuid: ID of your OneUptime Project in which this object belongs. Permissions - Create: [Project Owner, Project Admin, Project Member, Alert Admin, Alert Member, Create Alert State Timeline], Read: [Project Owner, Project Admin, Project Member, Viewer, Alert Admin, Alert Member, Alert Viewer, Read Alert State Timeline], Update: [No access - you don't have permission for this operation]
    - `alertId` string, uuid, required: Relation to Alert ID in which this resource belongs. Permissions - Create: [Project Owner, Project Admin, Project Member, Alert Admin, Alert Member, Create Alert State Timeline], Read: [Project Owner, Project Admin, Project Member, Viewer, Alert Admin, Alert Member, Alert Viewer, Read Alert State Timeline], Update: [No access - you don't have permission for this operation]
    - `createdByUserId` string, uuid: User ID who created this object (if this object was created by a User). Permissions - Create: [No access - you don't have permission for this operation], Read: [Project Owner, Project Admin, Project Member, Viewer, Alert Admin, Alert Member, Alert Viewer, Read Alert State Timeline], Update: [No access - you don't have permission for this operation]
    - `alertStateId` string, uuid, required: Alert State ID Relation. Which alert state does this alert change to? Permissions - Create: [Project Owner, Project Admin, Project Member, Alert Admin, Alert Member, Create Alert State Timeline], Read: [Project Owner, Project Admin, Project Member, Viewer, Alert Admin, Alert Member, Alert Viewer, Read Alert State Timeline], Update: [Project Owner, Project Admin, Project Member, Alert Admin, Alert Member, Edit Alert State Timeline]
    - `stateChangeLog` object: Permissions - Create: [No access - you don't have permission for this operation], Read: [Project Owner, Project Admin, Project Member, Viewer, Alert Admin, Alert Member, Alert Viewer, Read Alert State Timeline], Update: [No access - you don't have permission for this operation]
    - `rootCause` string: What is the root cause of this status change? Permissions - Create: [Project Owner, Project Admin, Project Member, Alert Admin, Alert Member, Create Alert State Timeline], Read: [Project Owner, Project Admin, Project Member, Viewer, Alert Admin, Alert Member, Alert Viewer, Read Alert State Timeline], Update: [No access - you don't have permission for this operation]
    - `endsAt` object: When did this status change end? Permissions - Create: [Project Owner, Project Admin, Project Member, Alert Admin, Alert Member, Create Alert State Timeline], Read: [Project Owner, Project Admin, Project Member, Viewer, Alert Admin, Alert Member, Alert Viewer, Read Alert State Timeline], Update: [No access - you don't have permission for this operation]
    - `startsAt` object: When did this status change? Correct this when the recorded time is wrong - every measurement derived from this timeline is recomputed from the corrected value. Permissions - Create: [Project Owner, Project Admin, Project Member, Alert Admin, Alert Member, Create Alert State Timeline], Read: [Project Owner, Project Admin, Project Member, Viewer, Alert Admin, Alert Member, Alert Viewer, Read Alert State Timeline], Update: [Project Owner, Project Admin, Project Member, Alert Admin, Alert Member, Edit Alert State Timeline]

## Other responses

- `400`: Bad request. This response indicates that the request was malformed or contained invalid data.
- `401`: Unauthorized. This response indicates that the request requires user authentication.
- `402`: Payment Required. This response indicates that the request requires payment or a valid subscription.
- `403`: Forbidden. This response indicates that the server understood the request, but refuses to authorize it.
- `405`: Project not found. This response indicates that the requested project does not exist or is not accessible.
- `408`: Request Timeout. This response indicates that the server timed out waiting for the request.
- `415`: Unable to reach server. This response indicates that the server is currently unreachable or down.
- `422`: Not authorized. This response indicates that the user does not have permission to access the requested resource.
- `500`: Internal Server Error. This response indicates that the server encountered an unexpected condition that prevented it from fulfilling the request.

---

[API](https://skmtc.dev/oneuptime/apis/oneuptime-openapi-specification.md) - [All operations](https://skmtc.dev/oneuptime/apis/oneuptime-openapi-specification/llms.txt) - [OpenAPI document](https://skmtc.dev/oneuptime/apis/oneuptime-openapi-specification/revisions/ba3307d00304?raw)
