Sample snippets for using jsonapi-rb with primitive types.

jsonapi_with_primitives.rb

module IdGenerator
  # some basic unique id generator
  SEQ = (1..).to_enum
  
  # id field is required by the JSONAPI spec and must be unique in an array
  def self.included(klass) = klass.id { "_#{SEQ.next}" }
end

# ---

# serializers/string_serializer.rb
class StringSerializer < JSONAPI::Serializable::Resource
  include IdGenerator

  attribute(:permalink) { @object }
end

# ---

# serializers/hash_serializer.rb
class HashSerializer < JSONAPI::Serializable::Resource
  include IdGenerator

  attributes :foo, :baz # any hash key(s)
end

# ---

# controllers/foo_controller.rb
class FooController < ApplicationController
  def strings
     list = %w[foo bar baz quux fred]
     render jsonapi: list, class: { String: StringSerializer }
  end

  def hash
    list = { foo: :bar, baz: :quux}
    render jsonapi: list, class: { Hash: HashSerializer }
  end
end