Basic Types

GraphQL Elixir defines the following base Scalar Types:

• GraphQL.Type.String
• GraphQL.Type.Int
• GraphQL.Type.Float
• GraphQL.Type.Boolean
• GraphQL.Type.ID

Also the following Types are available:

• GraphQL.Type.ObjectType
• GraphQL.Type.List
• GraphQL.Type.NonNull
• GraphQL.Type.JSON

Custom scalars

You can also create a custom scalar for your schema. Add a custom Scalar Type as follows:

defmodule GraphQL.Type.CustomType do
  defstruct name: "CustomType", description:
    """
    CustomType description
    """

  def coerce(value), do: <...>
end

defimpl GraphQL.Types, for: GraphQL.Type.CustomType do
  def parse_value(_, value), do: <...>
  def serialize(_, value), do: <...>
end```