Ghost Webhooks

asyncapi: 2.6.0
info:
  title: Ghost Webhooks
  description: >-
    Ghost Webhooks allow developers to receive real-time HTTP notifications when
    specific events occur within a Ghost publication, such as publishing a new
    post, updating a page, or gaining a new member. Webhooks can be configured
    through the Ghost Admin interface under custom integrations or created
    programmatically via the Admin API. The webhook sends an HTTP POST request to
    the configured target URL with a JSON payload containing the relevant
    resource data.
  version: '5.0'
  contact:
    name: Ghost Foundation
    url: https://ghost.org/docs/webhooks/
  license:
    name: MIT
    url: https://github.com/TryGhost/Ghost/blob/main/LICENSE
externalDocs:
  description: Ghost Webhooks Documentation
  url: https://ghost.org/docs/webhooks/
servers:
  yourServer:
    url: '{webhookTargetUrl}'
    protocol: https
    description: >-
      Your server that receives webhook HTTP POST requests from Ghost. The URL
      is configured when creating a webhook via the Ghost Admin UI or Admin API.
    variables:
      webhookTargetUrl:
        description: The target URL configured for the webhook
    security:
      - webhookSecret: []
channels:
  /webhook/site.changed:
    description: >-
      Triggered whenever any content changes in the site data or settings. This
      is a catch-all event useful for triggering site rebuilds or cache
      invalidation.
    publish:
      operationId: onSiteChanged
      summary: Site content or settings changed
      message:
        $ref: '#/components/messages/SiteChangedEvent'
  /webhook/post.added:
    description: >-
      Triggered whenever a new post is created in Ghost, regardless of its
      publication status.
    publish:
      operationId: onPostAdded
      summary: New post created
      message:
        $ref: '#/components/messages/PostEvent'
  /webhook/post.deleted:
    description: >-
      Triggered whenever a post is permanently deleted from Ghost.
    publish:
      operationId: onPostDeleted
      summary: Post deleted
      message:
        $ref: '#/components/messages/PostEvent'
  /webhook/post.edited:
    description: >-
      Triggered whenever a post is edited in Ghost.
    publish:
      operationId: onPostEdited
      summary: Post edited
      message:
        $ref: '#/components/messages/PostEvent'
  /webhook/post.published:
    description: >-
      Triggered whenever a post transitions to the published status.
    publish:
      operationId: onPostPublished
      summary: Post published
      message:
        $ref: '#/components/messages/PostEvent'
  /webhook/post.published.edited:
    description: >-
      Triggered whenever a previously published post is edited while remaining
      in the published state.
    publish:
      operationId: onPostPublishedEdited
      summary: Published post edited
      message:
        $ref: '#/components/messages/PostEvent'
  /webhook/post.unpublished:
    description: >-
      Triggered whenever a published post is unpublished (reverted to draft).
    publish:
      operationId: onPostUnpublished
      summary: Post unpublished
      message:
        $ref: '#/components/messages/PostEvent'
  /webhook/post.scheduled:
    description: >-
      Triggered whenever a post is scheduled for future publication.
    publish:
      operationId: onPostScheduled
      summary: Post scheduled
      message:
        $ref: '#/components/messages/PostEvent'
  /webhook/post.unscheduled:
    description: >-
      Triggered whenever a scheduled post is unscheduled.
    publish:
      operationId: onPostUnscheduled
      summary: Post unscheduled
      message:
        $ref: '#/components/messages/PostEvent'
  /webhook/post.rescheduled:
    description: >-
      Triggered whenever a scheduled post has its publication date changed.
    publish:
      operationId: onPostRescheduled
      summary: Post rescheduled
      message:
        $ref: '#/components/messages/PostEvent'
  /webhook/page.added:
    description: >-
      Triggered whenever a new page is created in Ghost.
    publish:
      operationId: onPageAdded
      summary: New page created
      message:
        $ref: '#/components/messages/PageEvent'
  /webhook/page.deleted:
    description: >-
      Triggered whenever a page is permanently deleted from Ghost.
    publish:
      operationId: onPageDeleted
      summary: Page deleted
      message:
        $ref: '#/components/messages/PageEvent'
  /webhook/page.edited:
    description: >-
      Triggered whenever a page is edited in Ghost.
    publish:
      operationId: onPageEdited
      summary: Page edited
      message:
        $ref: '#/components/messages/PageEvent'
  /webhook/page.published:
    description: >-
      Triggered whenever a page transitions to the published status.
    publish:
      operationId: onPagePublished
      summary: Page published
      message:
        $ref: '#/components/messages/PageEvent'
  /webhook/page.published.edited:
    description: >-
      Triggered whenever a published page is edited while remaining published.
    publish:
      operationId: onPagePublishedEdited
      summary: Published page edited
      message:
        $ref: '#/components/messages/PageEvent'
  /webhook/page.unpublished:
    description: >-
      Triggered whenever a published page is unpublished.
    publish:
      operationId: onPageUnpublished
      summary: Page unpublished
      message:
        $ref: '#/components/messages/PageEvent'
  /webhook/page.scheduled:
    description: >-
      Triggered whenever a page is scheduled for future publication.
    publish:
      operationId: onPageScheduled
      summary: Page scheduled
      message:
        $ref: '#/components/messages/PageEvent'
  /webhook/page.unscheduled:
    description: >-
      Triggered whenever a scheduled page is unscheduled.
    publish:
      operationId: onPageUnscheduled
      summary: Page unscheduled
      message:
        $ref: '#/components/messages/PageEvent'
  /webhook/page.rescheduled:
    description: >-
      Triggered whenever a scheduled page has its publication date changed.
    publish:
      operationId: onPageRescheduled
      summary: Page rescheduled
      message:
        $ref: '#/components/messages/PageEvent'
  /webhook/tag.added:
    description: >-
      Triggered whenever a new tag is created in Ghost.
    publish:
      operationId: onTagAdded
      summary: New tag created
      message:
        $ref: '#/components/messages/TagEvent'
  /webhook/tag.edited:
    description: >-
      Triggered whenever a tag is edited in Ghost.
    publish:
      operationId: onTagEdited
      summary: Tag edited
      message:
        $ref: '#/components/messages/TagEvent'
  /webhook/tag.deleted:
    description: >-
      Triggered whenever a tag is deleted from Ghost.
    publish:
      operationId: onTagDeleted
      summary: Tag deleted
      message:
        $ref: '#/components/messages/TagEvent'
  /webhook/post.tag.attached:
    description: >-
      Triggered whenever a tag is attached to a post.
    publish:
      operationId: onPostTagAttached
      summary: Tag attached to post
      message:
        $ref: '#/components/messages/TagAttachmentEvent'
  /webhook/post.tag.detached:
    description: >-
      Triggered whenever a tag is detached from a post.
    publish:
      operationId: onPostTagDetached
      summary: Tag detached from post
      message:
        $ref: '#/components/messages/TagAttachmentEvent'
  /webhook/page.tag.attached:
    description: >-
      Triggered whenever a tag is attached to a page.
    publish:
      operationId: onPageTagAttached
      summary: Tag attached to page
      message:
        $ref: '#/components/messages/TagAttachmentEvent'
  /webhook/page.tag.detached:
    description: >-
      Triggered whenever a tag is detached from a page.
    publish:
      operationId: onPageTagDetached
      summary: Tag detached from page
      message:
        $ref: '#/components/messages/TagAttachmentEvent'
  /webhook/member.added:
    description: >-
      Triggered whenever a new member signs up for the publication.
    publish:
      operationId: onMemberAdded
      summary: New member signed up
      message:
        $ref: '#/components/messages/MemberEvent'
  /webhook/member.edited:
    description: >-
      Triggered whenever a member record is updated.
    publish:
      operationId: onMemberEdited
      summary: Member updated
      message:
        $ref: '#/components/messages/MemberEvent'
  /webhook/member.deleted:
    description: >-
      Triggered whenever a member is deleted from the publication.
    publish:
      operationId: onMemberDeleted
      summary: Member deleted
      message:
        $ref: '#/components/messages/MemberEvent'
components:
  securitySchemes:
    webhookSecret:
      type: httpApiKey
      name: X-Ghost-Signature
      in: header
      description: >-
        HMAC-SHA256 signature computed from the request body using the webhook
        secret. The header contains both the signature and a timestamp in the
        format sha256=SIGNATURE, t=TIMESTAMP.
  messages:
    SiteChangedEvent:
      name: SiteChangedEvent
      title: Site Changed Event
      summary: >-
        Notification that site content or settings have been modified.
      contentType: application/json
      payload:
        $ref: '#/components/schemas/SiteChangedPayload'
    PostEvent:
      name: PostEvent
      title: Post Event
      summary: >-
        Notification containing post data when a post-related event occurs.
      contentType: application/json
      payload:
        $ref: '#/components/schemas/PostPayload'
    PageEvent:
      name: PageEvent
      title: Page Event
      summary: >-
        Notification containing page data when a page-related event occurs.
      contentType: application/json
      payload:
        $ref: '#/components/schemas/PagePayload'
    TagEvent:
      name: TagEvent
      title: Tag Event
      summary: >-
        Notification containing tag data when a tag-related event occurs.
      contentType: application/json
      payload:
        $ref: '#/components/schemas/TagPayload'
    TagAttachmentEvent:
      name: TagAttachmentEvent
      title: Tag Attachment Event
      summary: >-
        Notification when a tag is attached to or detached from a post or page.
      contentType: application/json
      payload:
        $ref: '#/components/schemas/TagAttachmentPayload'
    MemberEvent:
      name: MemberEvent
      title: Member Event
      summary: >-
        Notification containing member data when a member-related event occurs.
      contentType: application/json
      payload:
        $ref: '#/components/schemas/MemberPayload'
  schemas:
    SiteChangedPayload:
      type: object
      description: >-
        Payload for site.changed events. This event does not include resource
        data as it represents a general site change notification.
      properties: {}
    PostPayload:
      type: object
      description: >-
        Payload containing post data delivered via webhook when a post event
        occurs.
      properties:
        post:
          type: object
          description: The post resource that triggered the event
          properties:
            current:
              $ref: '#/components/schemas/PostResource'
            previous:
              description: >-
                Previous version of the post for edit events, containing only
                changed fields
              oneOf:
                - $ref: '#/components/schemas/PostResource'
                - type: object
    PagePayload:
      type: object
      description: >-
        Payload containing page data delivered via webhook when a page event
        occurs.
      properties:
        page:
          type: object
          description: The page resource that triggered the event
          properties:
            current:
              $ref: '#/components/schemas/PostResource'
            previous:
              description: >-
                Previous version of the page for edit events, containing only
                changed fields
              oneOf:
                - $ref: '#/components/schemas/PostResource'
                - type: object
    TagPayload:
      type: object
      description: >-
        Payload containing tag data delivered via webhook when a tag event
        occurs.
      properties:
        tag:
          type: object
          description: The tag resource that triggered the event
          properties:
            current:
              $ref: '#/components/schemas/TagResource'
            previous:
              description: Previous version of the tag for edit events
              oneOf:
                - $ref: '#/components/schemas/TagResource'
                - type: object
    TagAttachmentPayload:
      type: object
      description: >-
        Payload containing data about a tag being attached to or detached from
        a post or page.
      properties:
        tag:
          type: object
          description: The tag and the content it was attached to or detached from
          properties:
            current:
              $ref: '#/components/schemas/TagResource'
    MemberPayload:
      type: object
      description: >-
        Payload containing member data delivered via webhook when a member event
        occurs.
      properties:
        member:
          type: object
          description: The member resource that triggered the event
          properties:
            current:
              $ref: '#/components/schemas/MemberResource'
            previous:
              description: Previous version of the member for edit events
              oneOf:
                - $ref: '#/components/schemas/MemberResource'
                - type: object
    PostResource:
      type: object
      description: >-
        Post resource data included in webhook payloads.
      properties:
        id:
          type: string
          format: uuid
          description: Unique identifier
        uuid:
          type: string
          format: uuid
          description: Universally unique identifier
        title:
          type: string
          description: Post title
        slug:
          type: string
          description: URL slug
        html:
          type: string
          description: HTML content
        plaintext:
          type: string
          description: Plain text content
        feature_image:
          type: string
          format: uri
          description: Featured image URL
          nullable: true
        featured:
          type: boolean
          description: Whether the post is featured
        status:
          type: string
          description: Publication status
          enum:
            - published
            - draft
            - scheduled
            - sent
        visibility:
          type: string
          description: Access visibility
          enum:
            - public
            - members
            - paid
            - tiers
        created_at:
          type: string
          format: date-time
          description: Creation timestamp
        updated_at:
          type: string
          format: date-time
          description: Last update timestamp
        published_at:
          type: string
          format: date-time
          description: Publication timestamp
          nullable: true
        custom_excerpt:
          type: string
          description: Custom excerpt
          nullable: true
        url:
          type: string
          format: uri
          description: Full URL of the post
        tags:
          type: array
          description: Associated tags
          items:
            $ref: '#/components/schemas/TagResource'
    TagResource:
      type: object
      description: >-
        Tag resource data included in webhook payloads.
      properties:
        id:
          type: string
          format: uuid
          description: Unique identifier
        name:
          type: string
          description: Tag name
        slug:
          type: string
          description: URL slug
        description:
          type: string
          description: Tag description
          nullable: true
        feature_image:
          type: string
          format: uri
          description: Featured image URL
          nullable: true
        visibility:
          type: string
          description: Tag visibility
          enum:
            - public
            - internal
        created_at:
          type: string
          format: date-time
          description: Creation timestamp
        updated_at:
          type: string
          format: date-time
          description: Last update timestamp
    MemberResource:
      type: object
      description: >-
        Member resource data included in webhook payloads.
      properties:
        id:
          type: string
          format: uuid
          description: Unique identifier
        uuid:
          type: string
          format: uuid
          description: Universally unique identifier
        email:
          type: string
          format: email
          description: Member email address
        name:
          type: string
          description: Member name
          nullable: true
        status:
          type: string
          description: Member status
          enum:
            - free
            - paid
            - comped
        labels:
          type: array
          description: Member labels
          items:
            type: object
            properties:
              id:
                type: string
                format: uuid
                description: Label identifier
              name:
                type: string
                description: Label name
              slug:
                type: string
                description: Label slug
        created_at:
          type: string
          format: date-time
          description: Signup timestamp
        updated_at:
          type: string
          format: date-time
          description: Last update timestamp