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

# POST /audiences/{audienceId}/rules

> Create a rule for an audience



## OpenAPI

````yaml /api/openapi/admin-api.json post /audiences/{audienceId}/rules
openapi: 3.1.0
info:
  description: Admin API for Fanfare
  title: Fanfare Admin API
  version: 1.0.0
servers:
  - description: Production
    url: https://admin.fanfare.io/api
  - description: Local development
    url: http://localhost:4800
security:
  - SecretKeyAuth: []
paths:
  /audiences/{audienceId}/rules:
    post:
      tags:
        - Audiences
      description: Create a rule for an audience
      operationId: postAudiencesByAudienceIdRules
      parameters:
        - in: path
          name: audienceId
          required: true
          schema:
            type: string
      requestBody:
        content:
          application/json:
            schema:
              properties:
                audienceId:
                  format: uuid
                  type: string
                field:
                  type: string
                groupId:
                  format: uuid
                  nullable: true
                  type: string
                operator:
                  enum:
                    - EQUALS
                    - NOT_EQUALS
                    - GREATER_THAN
                    - GREATER_THAN_OR_EQUAL
                    - LESS_THAN
                    - LESS_THAN_OR_EQUAL
                    - BETWEEN
                    - CONTAINS
                    - NOT_CONTAINS
                    - IN
                    - NOT_IN
                    - EXISTS
                    - NOT_EXISTS
                  type: string
                position:
                  nullable: true
                  type: number
                values:
                  items:
                    oneOf:
                      - type: string
                      - type: number
                      - type: boolean
                      - type: 'null'
                  type: array
              required:
                - audienceId
                - field
                - operator
                - values
              type: object
      responses:
        '200':
          content:
            application/json:
              schema:
                properties:
                  audienceId:
                    format: uuid
                    type: string
                  field:
                    type: string
                  groupId:
                    anyOf:
                      - format: uuid
                        type: string
                      - type: 'null'
                  id:
                    format: uuid
                    type: string
                  operator:
                    enum:
                      - EQUALS
                      - NOT_EQUALS
                      - GREATER_THAN
                      - GREATER_THAN_OR_EQUAL
                      - LESS_THAN
                      - LESS_THAN_OR_EQUAL
                      - BETWEEN
                      - CONTAINS
                      - NOT_CONTAINS
                      - IN
                      - NOT_IN
                      - EXISTS
                      - NOT_EXISTS
                  organizationId:
                    format: uuid
                    type: string
                  position:
                    anyOf:
                      - type: number
                      - type: 'null'
                    default: 0
                  values:
                    items:
                      anyOf:
                        - type: string
                        - type: number
                        - type: boolean
                        - type: 'null'
                    type: array
                required:
                  - id
                  - organizationId
                  - audienceId
                  - field
                  - operator
                  - values
                type: object
          description: Audience rule created successfully
        '400':
          content:
            application/json:
              schema:
                properties:
                  error:
                    const: validation_error
                  issues:
                    items:
                      properties:
                        expected:
                          type: string
                        kind:
                          type: string
                        message:
                          type: string
                        path:
                          items:
                            properties:
                              input: {}
                              key:
                                type: string
                              origin:
                                type: string
                              type:
                                type: string
                            required:
                              - type
                              - origin
                              - input
                              - key
                            type: object
                          type: array
                        received:
                          type: string
                        type:
                          type: string
                      required:
                        - kind
                        - type
                        - expected
                        - received
                        - message
                        - path
                      type: object
                    type: array
                required:
                  - error
                  - issues
                type: object
          description: Bad Request - Invalid input schema
        '401':
          content:
            application/json:
              schema:
                properties:
                  error:
                    type: string
                required:
                  - error
                type: object
          description: Unauthorized - Authentication required
        '403':
          content:
            application/json:
              schema:
                properties:
                  error:
                    type: string
                required:
                  - error
                type: object
          description: Forbidden - User must be authenticated
        '500':
          content:
            application/json:
              schema:
                properties:
                  error:
                    type: string
                required:
                  - error
                type: object
          description: Internal server error
components:
  securitySchemes:
    SecretKeyAuth:
      description: Fanfare secret key. Keep secret credentials on your server.
      scheme: bearer
      type: http

````