March 2018
Intermediate to advanced
304 pages
6h 59m
English
Content preview from Craft GraphQL APIs in Elixir with Absinthe
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Scalar Types
- Description
-
Represents a primitive value in GraphQL. GraphQL responses take the form of a hierarchical tree; the leaves on these trees are GraphQL scalars.
- Absinthe Macro
-
scalar
Examples
In an Absinthe schema, defining a custom scalar type by providing functions to parse input and serialize results:
| | scalar :datetime, name: "DateTime" do |
| | serialize &DateTime.to_iso8601/1 |
| | parse &parse_datetime/1 |
| | end |
Built-in Scalars
A number of built-in scalar types are part of the specification and are predefined for you by Absinthe.
Boolean (Built-in)
- Description
-
The Boolean scalar type represents true or false.
- Absinthe Identifier
-
:boolean
Float (Built-in)
- Description
-
The Float scalar type represents signed double-precision fractional values ...
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