Scalar Coercion
Explore scalar coercion within GraphQL schema execution to understand how values returned by resolvers are validated and transformed. Learn the input and result coercion rules for scalar types like ID, Int, Float, String, and Boolean to properly enforce API contracts.
Scalar coercion is a term used by the type system, which translates the values returned by a resolver function into something that upholds the API contract. When we query or mutate data using our GraphQL schema, we need to understand ...