Validation error message.

Validate ToJSON instance matches ToSchema for a given value. This can be used with QuickCheck to ensure those instances are coherent:

validateToJSON (x :: Int) == []

NOTE: validateToJSON does not perform string pattern validation. See validateToJSONWithPatternChecker.

See renderValidationErrors on how the output is structured.

Variant of validatePrettyToJSON with typed output.

Validate ToJSON instance matches ToSchema for a given value and pattern checker. This can be used with QuickCheck to ensure those instances are coherent.

For validation without patterns see validateToJSON. See also: renderValidationErrors.

Pretty print validation errors together with actual JSON and Swagger Schema (using encodePretty).

>>> import Data.Aeson as Aeson
>>> import Data.Foldable (traverse_)
>>> import GHC.Generics
>>> data Phone = Phone { value :: String } deriving (Generic)
>>> data Person = Person { name :: String, phone :: Phone } deriving (Generic)
>>> instance ToJSON Person where toJSON p = object [ "name" Aeson..= name p ]
>>> instance ToSchema Phone
>>> instance ToSchema Person
>>> let person = Person { name = "John", phone = Phone "123456" }
>>> traverse_ putStrLn $ renderValidationErrors validateToJSON person
Validation against the schema fails:
  * property "phone" is required, but not found in "{\"name\":\"John\"}"

JSON value:
{
    "name": "John"
}

Swagger Schema:
{
    "properties": {
        "name": {
            "type": "string"
        },
        "phone": {
            "$ref": "#/components/schemas/Phone"
        }
    },
    "required": [
        "name",
        "phone"
    ],
    "type": "object"
}

Swagger Description Context:
{
    "Phone": {
        "properties": {
            "value": {
                "type": "string"
            }
        },
        "required": [
            "value"
        ],
        "type": "object"
    }
}

Validate JSON ExpressionOrValue against Swagger Schema.

validateJSON mempty (toSchema (Proxy :: Proxy Int)) (toJSON (x :: Int)) == []

NOTE: validateJSON does not perform string pattern validation. See validateJSONWithPatternChecker.

Validate JSON ExpressionOrValue agains Swagger ToSchema for a given value and pattern checker.

For validation without patterns see validateJSON.