Rails ERB templates supporting multiple clients

[Mange]

I have an Rails app that is using multiple GraphQL APIs.

From what I can tell by reading the code, only a single client can ever be assigned to views for use with the <%graphql blocks, via the Rails.application.config.graphql.client setting.

Is there some way of setting this per controller, maybe?

[Mange]

I got everything to work by not requiring the railtie and setting things up manually:

1. Include the ERB implementation, as the Railtie would have done.

   # config/application.rb
   initializer "graphql.configure_erb_implementation" do |_app|
      require "graphql/client/erb"
      ActionView::Template::Handlers::ERB.erb_implementation = GraphQL::Client::ERB
    end
   

2. Set up a custom view module per API

   require "graphql/client"
   require "graphql/client/view_module"
   
   module OneOfTheApis
     module Views
       extend GraphQL::Client::ViewModule
       self.path = Rails.application.config.paths["app/views"].first
       self.client = OneOfTheApis::Client
     end
   end
   

3. Refer to the slightly different constants in your controller/views:

   IndexQuery = <<~GRAPHQL
     query {
       example { ...OneOfTheApis::Views::Example::List }
     }
   GRAPHQL