I'm trying to use Facebook Pixel to track ViewContent event on products. Facebook says that it's required to pass content_ids or contents and content_type.

I guess content_type should always be 'product' and I can write that manually but how can I pass product id dynamically to 'content_ids' on each product page?

fbq('trackSingle', 'myfacebookpixelid', 'ViewContent', {
    content_ids: ''
    content_type: 'product'
  })

I have a product.js page that is used as the product page and I have the product id as this.state.product._id

How should I initialize FB Pixel on this page and how can I pass the product ID into content_ids?

Any guidance is welcome, thanks!