> ## Documentation Index > Fetch the complete documentation index at: https://gcore.com/docs/llms.txt > Use this file to discover all available pages before exploring further. # Retrieve an advanced rules descriptor ## OpenAPI ````yaml /api-reference/services_docs_mintlify/waap_api.yaml get /waap/v1/advanced-rules/descriptor openapi: 3.1.0 info: title: Gcore OpenAPI – WAAP API description: >- This OpenAPI is an aggregated OpenAPI specification that unifies all Gcore products into a single file. It covers Cloud, CDN, DNS, WAAP, DDoS Protection, Object Storage, Streaming, and FastEdge services. contact: email: support@gcore.com version: 574b1c4d1132 servers: - url: https://api.gcore.com security: - APIKey: [] tags: - name: API Discovery - name: Advanced Rules - name: Analytics - name: Custom Page Sets - name: Custom Rules - name: Domains - name: Filter Templates - name: Firewall Rules - name: IP Reputation - name: IP Spotlight - name: Network Organizations - name: Policies - name: Security Insights - name: Tags - name: WAAP Service paths: /waap/v1/advanced-rules/descriptor: get: tags: - Advanced Rules summary: Retrieve an advanced rules descriptor operationId: get_advanced_rule_descriptor_v1_advanced_rules_descriptor_get responses: '200': description: Successful Response content: application/json: schema: $ref: '#/components/schemas/AdvancedRuleDescriptorResponse' '400': content: application/problem+json: schema: $ref: '#/components/schemas/APIError' example: type: http-bad-request title: Bad Request status: 400 detail: 'Invalid domain name: ''''''''' description: Bad Request '401': description: Unauthorized content: application/problem+json: example: detail: Auth token is missing or invalid '403': description: Unauthenticated content: application/problem+json: example: detail: Permission denied '404': content: application/problem+json: schema: $ref: '#/components/schemas/APIError' example: type: http-not-found title: Not Found status: 404 detail: The resource is not found description: Not Found '422': content: application/problem+json: schema: $ref: '#/components/schemas/APICompositeError' example: type: request-validation-failed title: Request validation error. status: 422 detail: One or more fields have validation errors. errors: - loc: - body - name detail: Input should be a valid string - loc: - body - date detail: Field required - loc: - query - limit detail: Field required description: Unprocessable Entity '500': content: application/problem+json: schema: $ref: '#/components/schemas/APIError' example: type: internal-server-error title: Internal server error. status: 500 detail: >- An unexpected condition was encountered which prevented the server from fulfilling the request. description: Internal Server Error components: schemas: AdvancedRuleDescriptorResponse: properties: version: type: string title: Version description: The descriptor's version objects: anyOf: - items: $ref: '#/components/schemas/AdvancedRuleDescriptor' type: array - type: 'null' title: Objects type: object required: - version title: AdvancedRuleDescriptorResponse description: A response from a request to retrieve an advanced rules descriptor APIError: properties: type: type: string title: Type description: A URI identifier that categorizes the type of error. title: type: string title: Title description: A brief, human-readable title for the error. status: type: integer title: Status description: The HTTP status code applicable to this error. detail: anyOf: - type: string - type: 'null' title: Detail description: A detailed human-readable explanation of the error. type: object required: - type - title - status - detail title: APIError APICompositeError: properties: type: type: string title: Type description: A URI identifier that categorizes the type of error. title: type: string title: Title description: A brief, human-readable title for the error. status: type: integer title: Status description: The HTTP status code applicable to this error. detail: anyOf: - type: string - type: 'null' title: Detail description: A detailed human-readable explanation of the error. errors: items: $ref: '#/components/schemas/APIFieldError' type: array title: Errors description: A list of detailed errors for individual fields. type: object required: - type - title - status - detail - errors title: APICompositeError AdvancedRuleDescriptor: properties: name: type: string title: Name description: The object's name type: type: string title: Type description: The object's type description: anyOf: - type: string - type: 'null' title: Description description: The object's description attrs: anyOf: - items: $ref: '#/components/schemas/AdvancedRuleDescriptorAttr' type: array - type: 'null' title: Attrs description: The object's attributes list type: object required: - name - type title: AdvancedRuleDescriptor description: Advanced rules descriptor object APIFieldError: properties: loc: anyOf: - items: anyOf: - type: integer - type: string type: array - {} title: Loc description: The location of the field or a character number causing the error. detail: type: string title: Detail description: A human-readable message describing the error. type: object required: - loc - detail title: APIFieldError AdvancedRuleDescriptorAttr: properties: name: type: string title: Name description: The attribute's name type: type: string title: Type description: The attribute's type hint: anyOf: - type: string - type: 'null' title: Hint description: The attribute's hint description: anyOf: - type: string - type: 'null' title: Description description: The attribute's description args: anyOf: - items: $ref: '#/components/schemas/AdvancedRuleDescriptorArg' type: array - type: 'null' title: Args description: A list of arguments for the attribute type: object required: - name - type title: AdvancedRuleDescriptorAttr description: An attribute of a descriptor's object AdvancedRuleDescriptorArg: properties: name: type: string title: Name description: The argument's name type: type: string title: Type description: The argument's type description: anyOf: - type: string - type: 'null' title: Description description: The argument's description type: object required: - name - type title: AdvancedRuleDescriptorArg description: An argument of a descriptor's object securitySchemes: APIKey: description: >- API key for authentication. Make sure to include the word `apikey`, followed by a single space and then your token. Example: `apikey 1234$abcdef` type: apiKey in: header name: Authorization ````