GraphQLType<Value, Serialized> class abstract

Strictly dictates the structure of some input data in a GraphQL query.

GraphQL's rigid type system is primarily implemented in Dart using classes that extend from GraphQLType.

A GraphQLType represents values of type Value as values of type Serialized; for example, a GraphQLType that serializes objects into Strings.

Implementers

• GraphQLEnumType
• GraphQLInputObjectType
• GraphQLListType
• GraphQLNonNullableType
• GraphQLObjectType
• GraphQLScalarType
• GraphQLUnionType

Constructors

GraphQLType()

Properties

description → String?

A description of this type, which, while optional, can be very useful in tools like GraphiQL.

no setter

hashCode → int

The hash code for this object.

no setter, inherited

name → String?

The name of this type.

no setter

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

coerceToInputObject() → GraphQLType<Value, Serialized>

Turns this type into one suitable for being provided as an input to a GraphQLObjectField.

convert(dynamic value) → Serialized?

Attempts to cast a dynamic value into a Serialized instance.

deserialize(Serialized serialized) → Value

Deserializes a serialized value.

list() → GraphQLListType<Value, Serialized>

nonNullable() → GraphQLType<Value, Serialized>

Creates a non-nullable type that represents this type, and enforces that a field of this type is present in input data.

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

serialize(Value value) → Serialized

Serializes an arbitrary input value.

toString() → String

A string representation of this object.

override

validate(String key, covariant dynamic input) → ValidationResult<Serialized>

Performs type coercion against an input value, and returns a list of errors if the validation was unsuccessful.

Operators

operator ==(Object other) → bool

The equality operator.

inherited