hyphen in key for json using Jbuilder instead of underscore

Question

I'm trying to make this json by jbuilder

{
  "query": { 
    "bool": { 
      "must": [
        { "match": { "source-id":2}}
      ]
    }
  }
}

and here is my code

query = Jbuilder.encode do |json|
                  json.query do
                    json.bool do
                      json.must do
                        json.match do
                          json.source-id source.id
                        end
                      end
                    end
                  end
                end

I got this error message

syntax error, unexpected tIDENTIFIER, expecting keyword_do or '{' or '(' json.source-id source.id ^ from /Users/amir/.rvm/gems/ruby-2.3.0/gems/railties-5.0.2/lib/rails/commands/console.rb:65:in start' from /Users/amir/.rvm/gems/ruby-2.3.0/gems/railties-5.0.2/lib/rails/commands/console_helper.rb:9:in start' from /Users/amir/.rvm/gems/ruby-2.3.0/gems/railties-5.0.2/lib/rails/commands/commands_tasks.rb:78:in console' from /Users/amir/.rvm/gems/ruby-2.3.0/gems/railties-5.0.2/lib/rails/commands/commands_tasks.rb:49:in run_command!' from /Users/amir/.rvm/gems/ruby-2.3.0/gems/railties-5.0.2/lib/rails/commands.rb:18:in <top (required)>' from /Users/amir/.rvm/gems/ruby-2.3.0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:293:inrequire' from /Users/amir/.rvm/gems/ruby-2.3.0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:293:in block in require' from /Users/amir/.rvm/gems/ruby-2.3.0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:259:inload_dependency' from /Users/amir/.rvm/gems/ruby-2.3.0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:293:in require' from /Users/amir/source/innovate/self_driving_ideas/bin/rails:9:in' from /Users/amir/.rvm/gems/ruby-2.3.0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:287:in load' from /Users/amir/.rvm/gems/ruby-2.3.0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:287:inblock in load' from /Users/amir/.rvm/gems/ruby-2.3.0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:259:in load_dependency' from /Users/amir/.rvm/gems/ruby-2.3.0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:287:inload' from /Users/amir/.rvm/gems/ruby-2.3.0/gems/spring-1.7.2/lib/spring/commands/rails.rb:6:in call' from /Users/amir/.rvm/gems/ruby-2.3.0/gems/spring-1.7.2/lib/spring/command_wrapper.rb:38:in call' from /Users/amir/.rvm/gems/ruby-2.3.0/gems/spring-1.7.2/lib/spring/application.rb:191:in block in serve' from /Users/amir/.rvm/gems/ruby-2.3.0/gems/spring-1.7.2/lib/spring/application.rb:161:in fork' from /Users/amir/.rvm/gems/ruby-2.3.0/gems/spring-1.7.2/lib/spring/application.rb:161:in serve' from /Users/amir/.rvm/gems/ruby-2.3.0/gems/spring-1.7.2/lib/spring/application.rb:131:in block in run' from /Users/amir/.rvm/gems/ruby-2.3.0/gems/spring-1.7.2/lib/spring/application.rb:125:in loop' from /Users/amir/.rvm/gems/ruby-2.3.0/gems/spring-1.7.2/lib/spring/application.rb:125:in run' from /Users/amir/.rvm/gems/ruby-2.3.0/gems/spring-1.7.2/lib/spring/application/boot.rb:19:in <top (required)>' from /Users/amir/.rvm/rubies/ruby-2.3.0/lib/ruby/site_ruby/2.3.0/rubygems/core_ext/kernel_require.rb:55:inrequire' from /Users/amir/.rvm/rubies/ruby-2.3.0/lib/ruby/site_ruby/2.3.0/rubygems/core_ext/kernel_require.rb:55:in `require'

Answer 1

The issue is with having hyphen in source-id key name. Try doing this if source_id works as key.

query = Jbuilder.encode do |json|
              json.query do
                json.bool do
                  json.must do
                    json.match do
                      json.source_id source.id
                    end
                  end
                end
              end
            end

UPDATE::

Otherwise you can do this to get the key formatted:

Jbuilder.encode do |json|
  json.key_format!  ->(key) { (key=="source_id") ? "source-id" : key}
  json.query do
    json.bool do
      json.must do
        json.match do
          json.source_id source.id
        end
      end
    end
  end
end

To transform all strings:

Jbuilder.encode do |json|
  json.key_format!  :dasherize
  json.query do
    json.bool do
      json.must do
        json.match do
          json.source_id source.id
        end
      end
    end
  end
end

Or Use set! syntax like json.set! "source-id", source.id