api.rb

# pattern1
def to_rdbg_mimebundle kw
  format = {
    "application/rdbg+json" =>  json
  }
  format, {}
end

# pattern2
def to_rdbg_mimebundle kw
  format = {
    "application/rdbg+json" =>  json
  },
  metadata = {
    "application/rdbg+json" =>  {
      type: :table,
      paginate: {
        totalLen: ary.size
      },
      type: :lineChart,
      xAxisKeys: x_keys,
      yAxisKeys: y_keys
    }
  }
  format, metadata
end

# pattern3
def to_rdbg_mimebundle kw
  format = {
    "application/rdbg+json" =>  data,
  },
  metadata = {
    "application/rdbg+json" =>  {
      :table => {
        paginate: {
          totalLen: ary.size
        }
      },
      :lineChart => {
        xAxisKeys: x_keys,
        yAxisKeys: y_keys
      }
    }
  }
  format, metadata
end

# pattern4
def to_rdbg_mimebundle kw
  format = {
    "application/rdbg.table+json" =>  data,
    "application/rdbg.barchart+json" =>  data,
    "application/rdbg.linechart+json" =>  data
  },
  metadata = {
    "application/rdbg.table+json" =>  {
      paginate: {
        totalLen: ary.size
      }
    },
    "application/rdbg.linechart+json" => {
      xAxisKeys: x_keys,
      yAxisKeys: y_keys
    }
  }
  format, metadata
end

# pattern5
def to_rdbg_mimebundle kw
  format = {
    "application/rdbg.table" =>  data,
    "application/rdbg.barchart" =>  data,
    "application/rdbg.linechart" =>  data
  },
  metadata = {
    "application/rdbg.table" =>  {
      paginate: {
        totalLen: ary.size
      }
    },
    "application/rdbg.linechart" => {
      xAxisKeys: x_keys,
      yAxisKeys: y_keys
    }
  }
  format, metadata
end