JSONPath · lesson 9 of 13 · Filters

Combining conditions

&& (and), || (or) and ! (not) combine tests. Use parentheses to group.

Example 1Both must hold

Document

{
  "store": {
    "book": [
      { "title": "Sayings of the Century", "author": "Nigel Rees",
        "category": "reference", "price": 8.95 },
      { "title": "Sword of Honour", "author": "Evelyn Waugh",
        "category": "fiction", "price": 12.99 },
      { "title": "Moby Dick", "author": "Herman Melville",
        "category": "fiction", "price": 8.99, "isbn": "0-553-21311-3" },
      { "title": "The Lord of the Rings", "author": "J. R. R. Tolkien",
        "category": "fiction", "price": 22.99, "isbn": "0-395-19395-8" }
    ],
    "bicycle": { "color": "red", "price": 19.95 }
  }
}

Query

$.store.book[?@.category == 'fiction' && @.price < 13].title

@.category == 'fiction' The first test…
&& …and…
@.price < 13 …the second, both true.

Result

"Sword of Honour"
"Moby Dick"

Try it in the playground

Example 2Either may hold

Document

{
  "store": {
    "book": [
      { "title": "Sayings of the Century", "author": "Nigel Rees",
        "category": "reference", "price": 8.95 },
      { "title": "Sword of Honour", "author": "Evelyn Waugh",
        "category": "fiction", "price": 12.99 },
      { "title": "Moby Dick", "author": "Herman Melville",
        "category": "fiction", "price": 8.99, "isbn": "0-553-21311-3" },
      { "title": "The Lord of the Rings", "author": "J. R. R. Tolkien",
        "category": "fiction", "price": 22.99, "isbn": "0-395-19395-8" }
    ],
    "bicycle": { "color": "red", "price": 19.95 }
  }
}

Query

$.store.book[[email protected] < 9 || @.price > 20].title

|| True when at least one side is: very cheap or very expensive.

Result

"Sayings of the Century"
"Moby Dick"
"The Lord of the Rings"

Try it in the playground