Using a different key name for an association attribute in rails api active model serializer

Question

I am building a Rest API using rails-api and active-model-serializer to easily filter the required fields in the JSON. I am also using the has_one association in these serializers. All I wanted to know is how do I specify a different key name for the has_one attribute.

That is, I have two models say: Employee and Address, and there is a has_one :address in say EmployeeSerializer. The response that I get is:

{
  id: 1,
  address: {
   street: "some_street",
   city: "some_city"
  }
}

But I would like to get the following response:

{
  id: 1,
  stays: {
   street: "some_street",
   city: "some_city"
  }
}

I tried using has_one :address, :key => :stays, but that doesn't seem to work.

Answer 1

@janfoeh is right on. I just tested this in version 0.8 and it works just fine

1. gem "active_model_serializers", "~> 0.8.0" in your Gemfile
2. Kill the server
3. $bundle install
4. has_one :address, key: "stays"
5. Start the server back up

Works great!

As the documentation for the gem says (here), "you probably want to use version 0.8"