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The extension for building GraphQL APIs with Ash
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Files
lib/resource/query.ex
defmodule AshGraphql.Resource.Query do
@moduledoc "Represents a configured query on a resource"
defstruct [
:name,
:action,
:type,
:identity,
:allow_nil?,
:modify_resolution,
as_mutation?: false,
metadata_names: [],
metadata_types: [],
show_metadata: nil,
type_name: nil,
relay?: false
]
@query_schema [
name: [
type: :atom,
doc: "The name to use for the query.",
default: :get
],
action: [
type: :atom,
doc: "The action to use for the query.",
required: true
],
type_name: [
type: :atom,
doc: """
Override the type name returned by this query. Must be set if the read action has `metadata` that is not hidden via the `show_metadata` key.
"""
],
metadata_names: [
type: :keyword_list,
default: [],
doc: "Name overrides for metadata fields on the read action."
],
metadata_types: [
type: :keyword_list,
default: [],
doc: "Type overrides for metadata fields on the read action."
],
show_metadata: [
type: {:list, :atom},
doc: "The metadata attributes to show. Defaults to all."
],
as_mutation?: [
type: :boolean,
default: false,
doc: """
Places the query in the `mutations` key instead. Not typically necessary, but is often paired with `as_mutation?`. See the [the guide](/documentation/topics/modifying-the-resolution.html) for more.
"""
]
]
@get_schema [
identity: [
type: :atom,
doc:
"The identity to use for looking up the record. Pass `false` to not use an identity.",
required: false
],
allow_nil?: [
type: :boolean,
default: true,
doc: "Whether or not the action can return nil."
],
modify_resolution: [
type: :mfa,
doc: """
An MFA that will be called with the resolution, the query, and the result of the action as the first three arguments. See the [the guide](/documentation/topics/modifying-the-resolution.html) for more.
"""
]
]
|> Spark.OptionsHelpers.merge_schemas(@query_schema, "Shared Query Options")
@read_one_schema [
allow_nil?: [
type: :boolean,
default: true,
doc: "Whether or not the action can return nil."
]
]
|> Spark.OptionsHelpers.merge_schemas(@query_schema, "Shared Query Options")
@list_schema [
relay?: [
type: :boolean,
default: false,
doc: """
If true, the graphql queries/resolvers for this resource will be built to honor the relay specification. See [the relay guide](/documentation/topics/relay.html) for more.
"""
]
]
|> Spark.OptionsHelpers.merge_schemas(@query_schema, "Shared Query Options")
def get_schema, do: @get_schema
def read_one_schema, do: @read_one_schema
def list_schema, do: @list_schema
end