> ## Documentation Index > Fetch the complete documentation index at: https://docs.classquill.com/llms.txt > Use this file to discover all available pages before exploring further. # Update Blog Post > Update fields and/or flip `status` to 'published'. brand/target are immutable. Re-publishing an already-published post is a no-op success (no duplicate rebuild dispatch). Cross-scope id → 404. Requires `blog:write`. ## OpenAPI ````yaml /openapi.json patch /v1/blog-posts/{post_id} openapi: 3.1.0 info: title: ClassQuill Public API description: >- REST API for ClassQuill tutoring organisations. Pipe your sessions, invoices, payments, tutor earnings, students, and more into your own tools. Most endpoints are reads; a focused set of writes (each gated by a *:write scope) create or update data, including creating student/tutor/parent accounts. Authenticate every request with an org API key: Authorization: Token token=cq_live_... Mint keys in the ClassQuill app under Settings → Developers. version: 1.0.0 servers: [] security: - ApiKeyAuth: [] tags: - name: General - name: Sessions - name: Tutors - name: Students & Parents - name: Billing - name: Curriculum - name: Coursework - name: Operations - name: Pricing - name: Bookings - name: Blog - name: Reports paths: /v1/blog-posts/{post_id}: patch: tags: - Blog summary: Update Blog Post description: >- Update fields and/or flip `status` to 'published'. brand/target are immutable. Re-publishing an already-published post is a no-op success (no duplicate rebuild dispatch). Cross-scope id → 404. Requires `blog:write`. operationId: update_blog_post_v1_blog_posts__post_id__patch parameters: - name: post_id in: path required: true schema: type: string title: Post Id - name: Idempotency-Key in: header required: false schema: anyOf: - type: string - type: 'null' title: Idempotency-Key requestBody: required: true content: application/json: schema: $ref: '#/components/schemas/BlogPostUpdate' responses: '200': description: Successful Response content: application/json: schema: $ref: '#/components/schemas/BlogPost' '401': description: Missing, malformed, revoked, or expired credentials. content: application/json: schema: $ref: '#/components/schemas/ApiError' '403': description: The credential lacks the scope this endpoint requires. content: application/json: schema: $ref: '#/components/schemas/ApiError' '404': description: >- Not found — the record doesn't exist or belongs to another organisation. content: application/json: schema: $ref: '#/components/schemas/ApiError' '422': description: Validation error — `error.details.errors` lists the fields. content: application/json: schema: $ref: '#/components/schemas/ApiError' '429': description: >- Rate limit exceeded — honour Retry-After and the RateLimit-* headers. content: application/json: schema: $ref: '#/components/schemas/ApiError' components: schemas: BlogPostUpdate: properties: title: anyOf: - type: string maxLength: 300 minLength: 1 - type: 'null' title: Title slug: anyOf: - type: string maxLength: 200 pattern: ^[a-z0-9]+(?:-[a-z0-9]+)*$ - type: 'null' title: Slug excerpt: anyOf: - type: string maxLength: 2000 - type: 'null' title: Excerpt content: anyOf: - type: string maxLength: 200000 - type: 'null' title: Content tags: anyOf: - items: type: string type: array maxItems: 50 - type: 'null' title: Tags featured_image: anyOf: - type: string maxLength: 2000 - type: 'null' title: Featured Image author: anyOf: - type: string maxLength: 200 - type: 'null' title: Author category: anyOf: - type: string maxLength: 200 - type: 'null' title: Category date: anyOf: - type: string - type: 'null' title: Date status: anyOf: - type: string enum: - draft - published - type: 'null' title: Status publish_to_website: anyOf: - type: boolean - type: 'null' title: Publish To Website publish_to_portal: anyOf: - type: boolean - type: 'null' title: Publish To Portal scheduled_at: anyOf: - type: string - type: 'null' title: Scheduled At description: >- ISO 8601 datetime. Set to schedule deferred publishing; set to null to cancel a scheduled publish. additionalProperties: false type: object title: BlogPostUpdate description: >- PATCH /v1/blog-posts/{id} → blog_posts. Partial update; only these fields are writable. Flip `status` to 'published' to publish (idempotent — re-publishing is a no-op). brand/target/organization_id are immutable after creation (not accepted); updated_at is trigger-maintained. BlogPost: properties: id: type: string title: Id target: anyOf: - type: string - type: 'null' title: Target brand: anyOf: - type: string - type: 'null' title: Brand organization_id: anyOf: - type: string - type: 'null' title: Organization Id title: anyOf: - type: string - type: 'null' title: Title slug: anyOf: - type: string - type: 'null' title: Slug status: anyOf: - type: string - type: 'null' title: Status excerpt: anyOf: - type: string - type: 'null' title: Excerpt content: anyOf: - type: string - type: 'null' title: Content author: anyOf: - type: string - type: 'null' title: Author tags: items: type: string type: array title: Tags default: [] featured_image: anyOf: - type: string - type: 'null' title: Featured Image category: anyOf: - type: string - type: 'null' title: Category date: anyOf: - type: string - type: 'null' title: Date publish_to_website: anyOf: - type: boolean - type: 'null' title: Publish To Website publish_to_portal: anyOf: - type: boolean - type: 'null' title: Publish To Portal is_pinned: anyOf: - type: boolean - type: 'null' title: Is Pinned published_at: anyOf: - type: string - type: 'null' title: Published At scheduled_at: anyOf: - type: string - type: 'null' title: Scheduled At created_at: anyOf: - type: string - type: 'null' title: Created At updated_at: anyOf: - type: string - type: 'null' title: Updated At type: object required: - id title: BlogPost description: |- A blog post row returned by /v1/blog-posts. `target` is derived from organization_id (NULL → 'platform', else 'org'). ApiError: description: Canonical error envelope for every /v1 error response (4xx/5xx). properties: error: $ref: '#/components/schemas/ApiErrorBody' required: - error title: ApiError type: object ApiErrorBody: description: The `error` object every /v1 error response carries. properties: code: description: >- Stable machine-readable error code: bad_request, unauthorized, forbidden, not_found, conflict, validation_error, rate_limited, or internal_error. examples: - not_found title: Code type: string message: description: Human-readable explanation, safe to surface to end users. examples: - Session not found title: Message type: string status: description: The HTTP status code, repeated in the body. examples: - 404 title: Status type: integer details: additionalProperties: true description: >- Error-specific context. 422 carries the field errors under `errors`; 429 carries `retry_after_seconds`. title: Details type: object required: - code - message - status title: ApiErrorBody type: object securitySchemes: ApiKeyAuth: type: apiKey in: header name: Authorization description: Org API key as `Token token=cq_live_...` ```` This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.