json-formula Grammar and implementation
npm install @adobe/json-formulaThis project hosts an implementation of an expression grammar that operates on JSON documents.
The grammar is a mashup of:
- JMESPath query language.
- Operators and functions from OpenFormula
Given:
```
{
"items": [
{
"desc": "pens",
"quantity": 2,
"price": 3.23
},
{
"desc": "pencils",
"quantity": 4,
"price": 1.34
}
]
}
sum(items[].price items[*].quantity) => 11.82
items[].{price: price, quantity: quantity, subtotal: price quantity} =>
```
[
{
"price": 3.23,
"quantity": 2,
"subtotal": 6.46
},
{
"price": 1.34,
"quantity": 4,
"subtotal": 5.36
}
]