Description: A scalar type in GraphQL represents a single value, such as a number, a string of text, or a boolean. These types are fundamental in building GraphQL schemas, as they define the structure of the data that can be queried and manipulated. The most common scalar types include ‘Int’ for integers, ‘Float’ for floating-point numbers, ‘String’ for text strings, ‘Boolean’ for true or false values, and ‘ID’ for unique identifiers. Each of these types has specific characteristics that determine how they can be used in queries and mutations. For example, a ‘String’ can contain text, while an ‘Int’ can only contain whole numbers. The simplicity of scalar types allows developers to clearly define expectations about the data being handled, facilitating validation and error handling. Additionally, scalar types are the foundation upon which more complex types, such as objects and lists, are built, making them an essential component of the GraphQL type system. In summary, scalar types are crucial for defining and handling data in GraphQL, providing a clear and concise way to represent individual values in API queries and responses.
