'Total array of line item values in liquid

I have an array of line items that I would like to output the total of all of the price attribute.

JSON:

 "lineItems":
[
    {
      "code": "000001",
      "description": "Product 1",
      "quantity": 1,
      "price": 30
    },
{
      "code": "000002",
      "description": "Product 2",
      "quantity": 2,
      "price": 10
    }
]

Expected Result from above: 50
Workings: (1 x 30) + (2 x 20)

Using Liquid, how do I output the desired result?

I tried something like the following, as I couldn't work it out.

{% assign totalX = lineItem.price %}
{{ totalX | join: plus }}
liquid


Solution 1:[1]

{{lineItems | map: "price" | sum}}

Sources

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Source: Stack Overflow

Solution Source
Solution 1 Tom Bunn

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