> ## Documentation Index > Fetch the complete documentation index at: https://docs.health-street.net/llms.txt > Use this file to discover all available pages before exploring further. # Query FeatureSet > Retrieve a list of FeatureSets with a complex or simple query. ## OpenAPI ````yaml post /v2/query/glasscore/featureset openapi: 3.1.0 info: version: 2.0.0 title: Health Street API description: >- The Health Street API provides secure and reliable endpoints to manage drug tests, background checks, DNA checks, and occupational health tests. servers: - url: https://api.glass.fm security: [] paths: /v2/query/glasscore/featureset: post: tags: - FeatureSet summary: Query FeatureSet description: Retrieve a list of FeatureSets with a complex or simple query. operationId: QueryFeatureSet requestBody: content: application/json: schema: $ref: '#/components/schemas/RequestBodySchema' responses: '200': description: A list of FeatureSets content: application/json: schema: type: object properties: c_attributeField: type: string description: >- Stores the characteristics or properties associated with a specific feature in the FeatureSet. default~FeatureId: type: number nullable: true description: >- Represents the unique identifier for the default feature within a set of features. descrip: type: string description: Description of record. feature: type: array items: type: object properties: attributeValue: type: string description: >- Stores the specific property or characteristic of a feature. descrip: type: string description: Description of record. FeatureSetId: type: number nullable: true description: >- Represents the unique identifier for a specific set of features within the Feature table. fee: type: number nullable: true description: >- Represents the cost associated with a particular feature. id: type: number description: Unique identifier. isAddProduct: type: boolean nullable: true description: >- Indicates whether the feature to add a product is enabled or not. isSwapProduct: type: boolean nullable: true description: >- Indicates whether the product has the feature to be exchanged with another. name: type: string description: Name of feature. SpecialFeatureId: type: number nullable: true description: >- Identifies the unique code associated with each special feature in the Feature table. swapAdd~ProductId: type: number nullable: true description: >- Identifies the product associated with a feature that is being added in a swap operation. required: - attributeValue - descrip - FeatureSetId - fee - id - isAddProduct - isSwapProduct - name - SpecialFeatureId - swapAdd~ProductId description: >- Stores the specific characteristics or properties of an item in the FeatureSet. FeatureSetTypeId: type: number nullable: true description: Identifies the type of feature set in the database. GlassUtility~EntityId: type: number nullable: true description: >- Represents the unique identifier for a specific utility entity within the glass feature set. id: type: number description: Unique identifier. isInfo: type: boolean nullable: true description: >- Indicates whether the feature set contains informational data or not. isPerson: type: boolean nullable: true description: >- Indicates whether the feature set represents an individual person or not. name: type: string description: Name of featureSet. required: - c_attributeField - default~FeatureId - descrip - feature - FeatureSetTypeId - GlassUtility~EntityId - id - isInfo - isPerson - name components: schemas: RequestBodySchema: type: object properties: advancedFilter: type: object properties: linkOperator: type: string enum: - AND - OR description: >- Logical operator for combining multiple `items`. Using `AND` will require all conditions to be true. Using `OR` will require at least one condition to be true. items: type: array items: type: object properties: columnField: type: string description: Field name to filter by example: nameFirst operatorValue: type: string enum: - contains - endsWith - equals - greaterThan - greaterThanOrEqualTo - isEmpty - isFalse - isNotEmpty - isTrue - lessThan - lessThanOrEqualTo - listContains - notEquals - startsWith description: Operator to use for the filter condition. value: type: string description: Value to filter by. example: John required: - columnField - operatorValue - value additionalProperties: false description: Array of conditions to filter by. required: - linkOperator - items additionalProperties: false description: >- Complex filter configuration allowing for multiple conditions with AND/OR operators. return: type: array items: type: string description: Array of field names to return in the response. example: - id - firstName - lastName isAdditionalData: type: boolean default: false description: >- Set to `true` to merge requested fields with default response, or false/omit to return only requested fields plus `ID`. page: type: number default: 1 description: Page number for pagination. example: 1 pageSize: type: number default: 500 description: Number of items per page. Defaults to 500. example: 20 sortBy: type: string description: Field name to sort by. example: createdAt sortDirection: type: string enum: - asc - desc default: desc description: 'Sort direction: ascending (asc) or descending (desc).' example: desc additionalProperties: type: string description: >- Additional key-value pairs for simple filtering. Any field from the entity can be used as a filter key. E.g., `field=value` will return all records where that field matches the specified value. example: status=active description: >- Multiple query options are supported. You can build a complex query filling out the `advancedFilter` section. We also support "simple" queries which used by putting the key you want to filter by in the `query` section along with the value you want it to filter for. E.g., `nameFirst=John` will return all persons with a first name of John. title: Query ````