openapi: 3.2.0
info:
  title: Optimizely CMP Open API Documentation Milestones API
  version: V3
servers:
- description: v3 version of Optimizely CMP Open API
  url: https://api.cmp.optimizely.com/v3
security:
- OAuth2:
  - openid
  - profile
  - offline_access
tags:
- name: Milestones
paths:
  /milestones:
    get:
      description: <span style="background-color:#e95f6a;padding:5px;border-radius:5px">Experimental</span> Get a list of milestones.
      operationId: listMilestones
      parameters:
      - example: 63f1c2b675be4132854d2742
        in: query
        name: campaign_id
        schema:
          description: Filter milestones by campaign association. When a campaign ID is provided, returns only milestones associated with that campaign. When explicitly set to `null`, returns only milestones not associated with any campaign. When omitted, returns all milestones regardless of campaign association.
          type:
          - string
          - 'null'
      - example: '2023-10-01T00:00:00Z'
        in: query
        name: due_date__from
        schema:
          description: Filter milestones with due date from this date, in ISO 8601 UTC format
          format: date-time
          type: string
      - example: '2023-10-31T23:59:59Z'
        in: query
        name: due_date__to
        schema:
          description: Filter milestones with due date up to this date, in ISO 8601 UTC format
          format: date-time
          type: string
      - $ref: '#/components/parameters/offset'
      - $ref: '#/components/parameters/page_size'
      responses:
        '200':
          content:
            application/json:
              schema:
                additionalProperties: false
                properties:
                  data:
                    description: List of milestones
                    items:
                      $ref: '#/components/schemas/MilestoneResponse'
                    type: array
                  pagination:
                    allOf:
                    - $ref: '#/components/schemas/Pagination'
                    - properties:
                        next:
                          example: https://api.cmp.optimizely.com/v3/milestones?offset=10&page_size=10
                          type:
                          - string
                          - 'null'
                      type: object
                required:
                - data
                - pagination
                type: object
          description: List of fetched milestones
        '401':
          $ref: '#/components/responses/Unauthorized'
        '403':
          $ref: '#/components/responses/Forbidden'
      summary: GET /milestones
      tags:
      - Milestones
    post:
      description: <span style="background-color:#e95f6a;padding:5px;border-radius:5px">Experimental</span> Creates a milestone. Defaults to the organization's campaign if campaign_id is omitted. Tasks are validated against the selected campaign and must belong to it.
      operationId: createMilestone
      requestBody:
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/MilestoneCreateRequest'
        description: Payload to create a milestone
        required: true
      responses:
        '201':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/MilestoneResponse'
          description: Created milestone
        '400':
          $ref: '#/components/responses/ClientError'
        '401':
          $ref: '#/components/responses/Unauthorized'
        '403':
          $ref: '#/components/responses/Forbidden'
        '404':
          $ref: '#/components/responses/NotFound'
      summary: POST /milestones
      tags:
      - Milestones
  /milestones/{id}:
    get:
      description: <span style="background-color:#e95f6a;padding:5px;border-radius:5px">Experimental</span> Get a milestone by ID.
      operationId: getMilestone
      parameters:
      - example: 63f1c2b675be4132854d2741
        in: path
        name: id
        required: true
        schema:
          description: Unique identifier of the milestone
          type: string
      responses:
        '200':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/MilestoneResponse'
          description: Details of the milestone
        '400':
          $ref: '#/components/responses/ClientError'
        '401':
          $ref: '#/components/responses/Unauthorized'
        '403':
          $ref: '#/components/responses/Forbidden'
        '404':
          $ref: '#/components/responses/NotFound'
      summary: GET /milestones/{id}
      tags:
      - Milestones
    patch:
      description: '<span style="background-color:#e95f6a;padding:5px;border-radius:5px">Experimental</span> Updates a milestone. All fields are optional. Only provided fields will be updated. Note: If tasks array is empty, it will remove all task associations for that milestone.'
      operationId: updateMilestone
      parameters:
      - example: 63f1c2b675be4132854d2741
        in: path
        name: id
        required: true
        schema:
          description: Unique identifier of the milestone
          type: string
      requestBody:
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/MilestoneUpdateRequest'
        description: Payload to update a milestone
        required: true
      responses:
        '200':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/MilestoneResponse'
          description: Updated milestone
        '400':
          $ref: '#/components/responses/ClientError'
        '401':
          $ref: '#/components/responses/Unauthorized'
        '403':
          $ref: '#/components/responses/Forbidden'
        '404':
          $ref: '#/components/responses/NotFound'
        '422':
          $ref: '#/components/responses/UnprocessableEntity'
      summary: PATCH /milestones/{id}
      tags:
      - Milestones
components:
  schemas:
    MilestoneUpdateRequest:
      additionalProperties: false
      properties:
        campaign_id:
          description: Id of the campaign to be associated with the milestone
          example: 63f1c2b675be4132854d2741
          type: string
        description:
          description: Description of the milestone. If provided, this should be between 1 and 250 characters.
          example: Complete all tasks for the Q1 product launch
          maxLength: 250
          minLength: 1
          type:
          - string
          - 'null'
        due_date:
          description: Date and time on which the milestone will expire, in ISO 8601 UTC format
          example: '2023-10-07T13:15:30Z'
          format: date-time
          type: string
        hex_color:
          description: Hex color code for the milestone label
          example: '#4ECFD5'
          type: string
        tasks:
          description: List of tasks to be associated with the milestone. This can be an empty array, but in that case it will remove all task associations for that milestone.
          example:
          - id: 63f1c2b675be4132854d2741
          - id: 63f1c2b675be4132854d2742
          items:
            properties:
              id:
                description: Task ID
                type: string
            required:
            - id
            type: object
          type: array
        title:
          description: Title of the milestone. This should be between 1 and 80 characters.
          example: Q1 Product Launch
          maxLength: 80
          minLength: 1
          type: string
      type: object
    MilestoneCreateRequest:
      additionalProperties: false
      properties:
        campaign_id:
          description: Id of the campaign to be associated with the milestone
          example: 63f1c2b675be4132854d2741
          type: string
        description:
          description: Description of the milestone. If provided, this should be between 1 and 250 characters.
          example: Complete all tasks for the Q1 product launch
          maxLength: 250
          minLength: 1
          type:
          - string
          - 'null'
        due_date:
          description: Date and time on which the milestone will expire, in ISO 8601 UTC format
          example: '2023-10-07T13:15:30Z'
          format: date-time
          type: string
        hex_color:
          description: Hex color code for the milestone label
          example: '#4ECFD5'
          type: string
        tasks:
          description: List of tasks to be associated with the milestone
          example:
          - id: 63f1c2b675be4132854d2741
          - id: 63f1c2b675be4132854d2742
          items:
            properties:
              id:
                description: Task ID
                type: string
            required:
            - id
            type: object
          type: array
        title:
          description: Title of the milestone. This should be between 1 and 80 characters.
          example: Q1 Product Launch
          maxLength: 80
          minLength: 1
          type: string
      required:
      - title
      - due_date
      - hex_color
      type: object
    MilestoneResponse:
      additionalProperties: false
      properties:
        campaign:
          additionalProperties: false
          description: Campaign associated with the milestone
          properties:
            id:
              description: Unique identifier of the campaign
              example: 63f1c2b675be4132854d2742
              type: string
          required:
          - id
          type:
          - object
          - 'null'
        color:
          description: Color of the milestone label
          example: '#4ECFD5'
          type: string
        description:
          description: Description of the milestone
          example: This is a milestone
          type:
          - string
          - 'null'
        due_date:
          description: Date and time on which the milestone will expire, in ISO 8601 UTC format
          example: '2023-10-07T13:15:30Z'
          format: date-time
          type: string
        id:
          description: Unique identifier of the milestone
          example: 63f1c2b675be4132854d2741
          type: string
        links:
          additionalProperties: false
          description: Meta links
          properties:
            self:
              description: URL of the milestone
              example: https://api.cmp.optimizely.com/v3/milestones/63f1c2b675be4132854d2741
              type: string
          required:
          - self
          type: object
        title:
          description: Title of the milestone
          example: Sample Milestone
          type: string
      required:
      - id
      - title
      - color
      - description
      - due_date
      - campaign
      - links
      type: object
    Pagination:
      additionalProperties: false
      description: Pagination related information
      properties:
        next:
          description: URL to the next page
          example: https://api.cmp.optimizely.com/<some-path-to-next-page>?offset=10&page_size=10
          type:
          - string
          - 'null'
        previous:
          description: URL to the previous page
          example: null
          type:
          - string
          - 'null'
      required:
      - next
      - previous
      type: object
    Error:
      additionalProperties: true
      description: Error payload
      properties:
        errors:
          additionalProperties: true
          description: Additional information
          properties: {}
          type: object
        message:
          description: Message describing the error
          example: Not found
          type: string
      required:
      - message
      type: object
  responses:
    Forbidden:
      content:
        application/json:
          example:
            message: You do not have the permission to perform this operation
          schema:
            $ref: '#/components/schemas/Error'
      description: Permission error
    NotFound:
      content:
        application/json:
          example:
            message: Resource not found
          schema:
            $ref: '#/components/schemas/Error'
      description: Not found error
    ClientError:
      content:
        application/json:
          example:
            message: 'Unsupported arguments: a,b,c'
          schema:
            $ref: '#/components/schemas/Error'
      description: Client error
    UnprocessableEntity:
      content:
        application/json:
          example:
            message: Resource cannot be processed
          schema:
            $ref: '#/components/schemas/Error'
      description: Unprocessable entity error
    Unauthorized:
      content:
        application/json:
          example:
            message: Unauthorized
          schema:
            $ref: '#/components/schemas/Error'
      description: Authorization error
  parameters:
    page_size:
      description: Number of results to return per page
      example: 15
      in: query
      name: page_size
      schema:
        default: 10
        maximum: 100
        minimum: 1
        type: integer
    offset:
      description: Starting index of results (zero indexed)
      example: 5
      in: query
      name: offset
      schema:
        default: 0
        minimum: 0
        type: integer
  securitySchemes:
    OAuth2:
      flows:
        authorizationCode:
          authorizationUrl: https://accounts.cmp.optimizely.com/o/oauth2/v1/auth
          scopes:
            offline_access: Grants the ability to refresh access_token using the refresh token even when user is not present (not logged in).
            openid: Grants the ability to receive a unique identifier for the user.
            profile: Grants access to user profile information.
          tokenUrl: https://accounts.cmp.optimizely.com/o/oauth2/v1/token
        clientCredentials:
          scopes: {}
          tokenUrl: https://accounts.cmp.optimizely.com/o/oauth2/v1/token
      type: oauth2
x-tagGroups:
- name: API
  tags:
  - Uploader
  - Library
  - Labels
  - Brand Compliance
  - Tasks
  - Task Step
  - Campaigns
  - Publishing
  - Templates
  - Users
  - Work Requests
  - Structured Contents
  - Assets
  - Milestones
  - Teams
  - Settings
  - Workflows
  - Fields
  - Events