{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://raw.githubusercontent.com/api-evangelist/sendgrid/main/json-schema/sendgrid-segment2xx-schema.json",
  "title": "segment_response",
  "x-generated": "2026-10-12",
  "x-method": "derived",
  "x-generator": "derive-json-schema.py",
  "x-source": "openapi/sendgrid-segmenting-contacts-v2-api-openapi.yml#/components/schemas/Segment2xx",
  "type": "object",
  "properties": {
    "id": {
      "type": "string",
      "minLength": 36,
      "maxLength": 36,
      "format": "uuid",
      "description": "ID assigned to the segment when created."
    },
    "name": {
      "type": "string",
      "minLength": 1,
      "maxLength": 100,
      "description": "Name of the segment."
    },
    "query_dsl": {
      "type": "string",
      "description": "SQL query which will filter contacts based on the conditions provided"
    },
    "contacts_count": {
      "type": "integer",
      "description": "Total number of contacts present in the segment"
    },
    "contacts_sample": {
      "type": "array",
      "description": "A subset of all contacts that are in this segment",
      "items": {
        "$ref": "#/$defs/ContactResponse"
      }
    },
    "created_at": {
      "type": "string",
      "description": "ISO8601 timestamp of when the object was created"
    },
    "updated_at": {
      "type": "string",
      "description": "ISO8601 timestamp of when the object was last updated"
    },
    "sample_updated_at": {
      "type": "string",
      "description": "ISO8601 timestamp of when the samples were last updated"
    },
    "next_sample_update": {
      "type": "string",
      "description": "ISO8601 timestamp of when the samples will be next updated"
    },
    "parent_list_ids": {
      "type": "array",
      "description": "The array of list ids to filter contacts on when building this segment. It allows only one such list id for now. We will support more in future",
      "uniqueItems": true,
      "items": {
        "type": "string"
      }
    },
    "query_version": {
      "type": "string",
      "description": "If not set, segment contains a Query for use with Segment v1 APIs. If set to '2', segment contains a SQL query for use in v2."
    },
    "status": {
      "$ref": "#/$defs/SegmentStatusResponse"
    },
    "refreshes_used": {
      "type": "integer",
      "description": "The number of times a segment has been manually refreshed since start of today in the user's timezone."
    },
    "max_refreshes": {
      "type": "integer",
      "description": "The maximum number of manual refreshes allowed per day for this segment. Currently, only 2 are allowed."
    },
    "last_refreshed_at": {
      "type": "string",
      "description": "The ISO8601 timestamp when the segment was last refreshed in UTC time."
    }
  },
  "required": [
    "id",
    "name",
    "query_dsl",
    "contacts_count",
    "contacts_sample",
    "created_at",
    "updated_at",
    "sample_updated_at",
    "next_sample_update",
    "parent_list_ids",
    "query_version",
    "status"
  ],
  "$defs": {
    "ContactResponse": {
      "title": "contact_response",
      "type": "object",
      "properties": {
        "id": {
          "type": "string",
          "maxLength": 36,
          "pattern": "[a-fA-F0-9]{8}-[a-fA-F0-9]{4}-[a-fA-F0-9]{4}-[a-fA-F0-9]{4}-[a-fA-F0-9]{12}",
          "format": "uuid",
          "description": "ID assigned to a contact when added to the system."
        },
        "email": {
          "type": "string",
          "minLength": 3,
          "maxLength": 254,
          "format": "email",
          "description": "Email of the contact. This is a reserved field."
        },
        "phone_number_id": {
          "type": "string",
          "description": "The contact's Phone Number ID. This must be a valid phone number."
        },
        "external_id": {
          "type": "string",
          "description": "The contact's External ID.",
          "maxLength": 254
        },
        "anonymous_id": {
          "type": "string",
          "description": "The contact's Anonymous ID.",
          "maxLength": 254
        },
        "alternate_emails": {
          "type": "array",
          "uniqueItems": true,
          "minItems": 0,
          "description": "Alternate emails of the contact. This is a reserved field.",
          "items": {
            "type": "string",
            "minLength": 3,
            "maxLength": 254,
            "format": "email"
          }
        },
        "first_name": {
          "type": "string",
          "minLength": 1,
          "description": "First name of the contact. This is a reserved field."
        },
        "last_name": {
          "type": "string",
          "minLength": 1,
          "description": "Last name of the contact. This is a reserved field."
        },
        "address_line_1": {
          "type": "string",
          "minLength": 0,
          "description": "First line of address of the contact. This is a reserved field."
        },
        "address_line_2": {
          "type": "string",
          "minLength": 0,
          "description": "Second line of address of the contact. This is a reserved field."
        },
        "city": {
          "type": "string",
          "minLength": 0,
          "pattern": "^[a-zA-Z\\u0080-\\u024F\\s\\/\\-\\)\\(\\`\\.\\\"\\']+$",
          "description": "City associated with the contact. This is a reserved field."
        },
        "state_province_region": {
          "type": "string",
          "minLength": 0,
          "description": "State associated with the contact. This is a reserved field."
        },
        "postal_code": {
          "type": "integer",
          "description": "Zipcode associated with the address of the contact. This is a reserved field."
        },
        "country": {
          "type": "string",
          "minLength": 0,
          "description": "Country associated with the address of the contact. This is a reserved field."
        },
        "list_ids": {
          "type": "array",
          "uniqueItems": true,
          "description": "IDs of all lists the contact is part of",
          "items": {
            "type": "string",
            "format": "uuid"
          }
        },
        "custom_fields": {
          "type": "object",
          "minProperties": 0,
          "description": "The user may choose to create up to 120 custom fields or none at all. This is not a reserved field.",
          "properties": {
            "custom_field_name1": {
              "type": "string",
              "minLength": 0
            },
            "custom_field_name2": {
              "type": "string",
              "minLength": 0
            }
          }
        },
        "segment_ids": {
          "type": "array",
          "uniqueItems": true,
          "description": "IDs of all segments the contact is part of",
          "items": {
            "type": "string",
            "format": "uuid"
          }
        }
      },
      "required": [
        "id",
        "alternate_emails",
        "first_name",
        "last_name",
        "address_line_1",
        "address_line_2",
        "city",
        "state_province_region",
        "postal_code",
        "country",
        "custom_fields"
      ]
    },
    "SegmentStatusResponse": {
      "title": "segment_status_response",
      "type": "object",
      "description": "Segment status indicates whether the segment's contacts will be updated periodically",
      "properties": {
        "query_validation": {
          "type": "string",
          "description": "Status of query validation. PENDING, VALID, or INVALID"
        },
        "error_message": {
          "type": "string",
          "description": "Describes any errors that were encountered during query validation"
        }
      },
      "required": [
        "query_validation"
      ]
    }
  }
}