Cosmic JS add to bucket

index.js

let content = ''
items.forEach(item => {
  content+= `${item.title} x ${item.count}, `
})
const params = {
  type_slug: 'orders',
  title: name,
  content: content,
  metafields: [
    {
      key: 'Address',
      type: 'text',
      value: address
    },
    {
      key: 'City',
      type: 'text',
      value: city
    }
  ]
}
cosmic.addObject(params).then(data => {
  ...
}).catch(err => {
  ...
})