Validation rules for star rating components including ratings, counts, categories, and value ranges

Best Rating

BestRatingMustBePresent

Definition	Severity	API	Sample	Mode
Validate that 'bestRating' is present

BestRatingMustBeValid

Definition	Severity	API	Sample	Mode
Validate that 'bestRating' is valid. (Not zero, non-zero decimal or string data type)

Example Validation Report

{
  "code": "VALIDATION__BestRatingMustBeValid",
  "severity": "VIOLATION",
  "message": "'bestRating' value '{{value}}' is not valid",
  "context": {
    "value": 5.1
  },
  "details": {
    "createdDate": "2026-09-01T21:00:59.865Z",
    "submitted": [
      {
        "field": "$.aggregateRatingDetails.starRatings.bestRating",
        "value": 5.1
      }
    ],
    "compared": [],
    "expected": []
  }
}

Example Validation Report

{
  "code": "VALIDATION__BestRatingMustBeValid",
  "severity": "VIOLATION",
  "message": "'bestRating' value '{{value}}' is not valid",
  "context": {
    "value": "5"
  },
  "details": {
    "createdDate": "2026-09-01T21:00:59.865Z",
    "submitted": [
      {
        "field": "$.aggregateRatingDetails.starRatings.bestRating",
        "value": "5"
      }
    ],
    "compared": [],
    "expected": []
  }
}

Example Validation Report

{
  "code": "VALIDATION__BestRatingMustBeValid",
  "severity": "VIOLATION",
  "message": "'bestRating' value '{{value}}' is not valid",
  "context": {
    "value": 0
  },
  "details": {
    "createdDate": "2026-09-01T21:00:59.865Z",
    "submitted": [
      {
        "field": "$.aggregateRatingDetails.starRatings.bestRating",
        "value": 0
      }
    ],
    "compared": [],
    "expected": []
  }
}

Category

CategoryMustBePresent

Definition	Severity	API	Sample	Mode
Validate that 'category' is present

CategoryMustBeValid

Definition	Severity	API	Sample	Mode
Validate that category value is OVERALL

CategoryMustNotBeEmpty

Definition	Severity	API	Sample	Mode
Validate that category is not an empty string

Example Validation Report

{
  "code": "VALIDATION__CategoryMustNotBeEmpty",
  "severity": "VIOLATION",
  "message": "'{{field}}' must not be empty string",
  "context": {
    "field": "category"
  },
  "details": {
    "createdDate": "2026-09-01T21:00:59.865Z",
    "submitted": [],
    "compared": [],
    "expected": []
  }
}

CategoryMustBeDistinct

Definition	Severity	API	Sample	Mode
Validate that each category in a starRatings list is distinct (1)

Change Detection

RatingCountIsReduced

Definition	Severity	API	Sample	Mode
Validate that the count of ratings is equal to or greater than the last submittal

ReviewCountIsReduced

Definition	Severity	API	Sample	Mode
Validate that the count of reviews is equal to or greater than the last submittal

Rating Count

RatingCountIsZero

Preconditions
distribution is not present

Definition	Severity	API	Sample	Mode
Validate that 'ratingCount' is not zero

RatingCountMustBePresent

Definition	Severity	API	Sample	Mode
Validate that 'ratingCount' is present

RatingCountMustNotBeZero

Preconditions
distribution is present

Definition	Severity	API	Sample	Mode
Validate that 'ratingCount' is not zero

Rating Value

RatingValueMustBePresent

Definition	Severity	API	Sample	Mode
Validate that 'ratingValue' is present

RatingValueNotWithinDerivedRange

Definition	Severity	API	Sample	Mode
Validate that ratingValue is equal to or lays between the range that is derived from worstRating and bestRating

Review Count

ReviewCountIsZero

Definition	Severity	API	Sample	Mode
Validate that 'reviewCount' is not zero

ReviewCountMustBePresent

Definition	Severity	API	Sample	Mode
Validate that 'reviewCount' is present

Worst Rating

WorstRatingMustBePresent

Definition	Severity	API	Sample	Mode
Validate that 'worstRating' is present

WorstRatingMustBeValid

Definition	Severity	API	Sample	Mode
Validate that 'worstRating' is valid. (Is 0 or 1. Not a non-zero decimal or string data type)

Example Validation Report

{
  "code": "VALIDATION__WorstRatingMustBeValid",
  "severity": "VIOLATION",
  "message": "'worstRating' value '{{value}}' is not valid.",
  "context": {
    "value": 0.9
  },
  "details": {
    "createdDate": "2026-09-01T21:00:59.865Z",
    "submitted": [
      {
        "field": "$.aggregateRatingDetails.starRatings.worstRating",
        "value": 0.9
      }
    ],
    "compared": [],
    "expected": []
  }
}

Example Validation Report

{
  "code": "VALIDATION__WorstRatingMustBeValid",
  "severity": "VIOLATION",
  "message": "'worstRating' value '{{value}}' is not valid.",
  "context": {
    "value": "0"
  },
  "details": {
    "createdDate": "2026-09-01T21:00:59.865Z",
    "submitted": [
      {
        "field": "$.aggregateRatingDetails.starRatings.worstRating",
        "value": "0"
      }
    ],
    "compared": [],
    "expected": []
  }
}

Example Validation Report

{
  "code": "VALIDATION__WorstRatingMustBeValid",
  "severity": "VIOLATION",
  "message": "'worstRating' value '{{value}}' is not valid.",
  "context": {
    "value": 2
  },
  "details": {
    "createdDate": "2026-09-01T21:00:59.865Z",
    "submitted": [
      {
        "field": "$.aggregateRatingDetails.starRatings.worstRating",
        "value": 2
      }
    ],
    "compared": [],
    "expected": []
  }
}