Function let_example

examples/src/jmespath_examples.cpp:71–100

}

void let_example()
{
    auto doc = json::parse(R"(
[
  {"home_state": "WA",
   "states": [
     {"name": "WA", "cities": ["Seattle", "Bellevue", "Olympia"]},
     {"name": "CA", "cities": ["Los Angeles", "San Francisco"]},
     {"name": "NY", "cities": ["New York City", "Albany"]}
   ]
  },
  {"home_state": "NY",
   "states": [
     {"name": "WA", "cities": ["Seattle", "Bellevue", "Olympia"]},
     {"name": "CA", "cities": ["Los Angeles", "San Francisco"]},
     {"name": "NY", "cities": ["New York City", "Albany"]}
   ]
  }
]
    )");

    std::string query = R"([*].[let $home_state = home_state in states[? name == $home_state].cities[]][])";
    auto expr = jmespath::make_expression<json>(query);

    json result = expr.evaluate(doc);

    auto options = jsoncons::json_options{}
        .array_array_line_splits(jsoncons::line_split_kind::same_line);
    std::cout << pretty_print(result, options) << "\n";
}

void expression_with_params_example() // since 1.3.0
{