Scalar types in GraphQL are data types used for storing single values. They are the most fundamental components of the GraphQL type system. Standard scalar types include:
Int: Represents a signed 32-bit integer.Float: Represents a double-precision floating-point value.String: Represents a UTF-8 character sequence.Boolean: Represents a boolean value (true or false).ID: Represents a unique identifier, typically used for fetching objects or as a cache key, and is usually serialized as a string. In addition to these built-in scalar types, GraphQL allows developers to define custom scalar types, such as date or time formats, to meet specific data format requirements.