dimitarvp
Absinthe: how to rename a field in the output
Hello,
I haven’t used Absinthe in a while so this might be a dumb question.
I am looking into renaming a field inside of a returned object (in response to a mutation). Let’s imagine my mutation response returns a Comment struct that looks like so:
%{
description: "",
author: "",
inserted_at: whenever
}
Now say I have this in my mutation:
output do
field(:comment, :comment)
end
How do I modify it so it can map one of the Comment fields (description) to another name (text) and have the new field name in the response?
Marked As Solved
dimitarvp
I had to make this change in my types:
object :comment do
field :description, :string do
middleware(MapGet, :text)
end
# ... more fields
end
Also Liked
christopherlai
A resolver for the field should work.
field :comment, :string do
resolve fn parent, _, _ ->
{:ok, Map.get(parent, :description)}
end
end
BartOtten
How about using an alias?
`name` - The name of the field, usually assigned automatically by the Absinthe.Schema.Notation.field/4
Including this option will bypass the snake_case to camelCase conversion.
field :description, :string, name: :text?
opsb
I use this little helper
field(:ingredients_description, :string, resolve: from_parent(& &1.ingredients))
def from_parent(cb) do
fn parent, _, _ ->
{:ok, cb.(parent)}
end
end
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