> ## Documentation Index
> Fetch the complete documentation index at: https://docs.flexslot.gg/llms.txt
> Use this file to discover all available pages before exploring further.

# Create or replace a deck's strategy guide

> Owner-only create-or-replace. First call against a guideless deck returns 201; subsequent calls overwrite and return 200. Non-owners receive ``404 FLEXSLOT_NOT_FOUND`` so existence is not leaked. Pure-partner HMAC callers are rejected because the write contract requires per-user attribution to the deck owner.



## OpenAPI

````yaml /openapi.json put /api/public/v1/games/{game}/decks/{id}/guide
openapi: 3.0.3
info:
  title: Flexslot API
  version: 1.0.0
  description: API documentation for Flexslot decks application
servers:
  - url: https://api.flexslot.gg
    description: Production
  - url: https://api-dev.flexslot.gg
    description: Development
security: []
paths:
  /api/public/v1/games/{game}/decks/{id}/guide:
    put:
      tags:
        - Deck Guides
      summary: Create or replace a deck's strategy guide
      description: >-
        Owner-only create-or-replace. First call against a guideless deck
        returns 201; subsequent calls overwrite and return 200. Non-owners
        receive ``404 FLEXSLOT_NOT_FOUND`` so existence is not leaked.
        Pure-partner HMAC callers are rejected because the write contract
        requires per-user attribution to the deck owner.
      operationId: games_decks_guide_upsert
      parameters:
        - in: path
          name: game
          schema:
            type: string
          required: true
        - in: path
          name: id
          schema:
            type: string
            format: uuid
          required: true
      requestBody:
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/PublicDeckGuideUpsertRequestRequest'
          application/x-www-form-urlencoded:
            schema:
              $ref: '#/components/schemas/PublicDeckGuideUpsertRequestRequest'
          multipart/form-data:
            schema:
              $ref: '#/components/schemas/PublicDeckGuideUpsertRequestRequest'
        required: true
      responses:
        '200':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/PublicDeckGuideOutput'
          description: ''
        '201':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/PublicDeckGuideOutput'
          description: ''
        '400':
          description: No response body
        '401':
          description: No response body
        '403':
          description: No response body
        '404':
          description: No response body
      security:
        - PartnerHmac: []
          PartnerSlug: []
          PersonalAccessToken: []
        - PartnerHmac: []
          PartnerSlug: []
        - ApiKey: []
        - PersonalAccessToken: []
        - OAuth2DPoP: []
          OAuth2DPoPProof: []
        - OAuth2Bearer: []
components:
  schemas:
    PublicDeckGuideUpsertRequestRequest:
      type: object
      properties:
        content_type:
          $ref: '#/components/schemas/ContentTypeEnum'
        content: {}
        is_premium:
          type: boolean
          default: false
      required:
        - content
        - content_type
    PublicDeckGuideOutput:
      type: object
      properties:
        id:
          type: string
          format: uuid
        deck_id:
          type: string
          format: uuid
        content_type:
          type: string
        content: {}
        is_premium:
          type: boolean
        is_truncated:
          type: boolean
          default: false
        created_at:
          type: string
          format: date-time
        updated_at:
          type: string
          format: date-time
      required:
        - content
        - content_type
        - created_at
        - deck_id
        - id
        - is_premium
        - updated_at
    ContentTypeEnum:
      enum:
        - markdown
        - tiptap
      type: string
      description: |-
        * `markdown` - markdown
        * `tiptap` - tiptap
  securitySchemes:
    PartnerHmac:
      type: apiKey
      in: header
      name: X-Signature
      description: >-
        HMAC-SHA256 over canonical request string. Format:
        v1.<unix_seconds>.<hex_hmac_sha256>.
    PartnerSlug:
      type: apiKey
      in: header
      name: X-Partner-Id
      description: Partner identifier slug. Required alongside X-Signature for HMAC auth.
    PersonalAccessToken:
      type: http
      scheme: bearer
      bearerFormat: flx_pat_...
      description: 'User-issued personal access token (format: flx_pat_<token>).'
    ApiKey:
      type: apiKey
      in: header
      name: X-API-Key
      description: >-
        Partner API key (format: ak_<token>). Alternative to HMAC for simpler
        integrations.
    OAuth2DPoP:
      type: http
      scheme: DPoP
      description: >-
        DPoP-bound OAuth2 access token (RFC 9449). Issued by the /oauth/token
        endpoint when the client is registered with
        dpop_bound_access_tokens=true. Each protected request must include a
        fresh DPoP proof JWT in the DPoP header. Token format: flx_at_<token>.
    OAuth2DPoPProof:
      type: apiKey
      in: header
      name: DPoP
      description: >-
        RFC 9449 DPoP proof JWT. Required on every request that presents
        Authorization: DPoP <access_token>. Must carry fresh iat, jti, htm
        matching the request method, htu matching the request URL, and ath
        matching SHA-256 of the access token.
    OAuth2Bearer:
      type: http
      scheme: bearer
      bearerFormat: flx_at_...
      description: >-
        OAuth2 access token issued via the authorization-code + PKCE flow
        (format: flx_at_<token>). Grants the partner user-scoped access to act
        on behalf of the consenting end-user.

````