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jsonata

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Readme

JSONata

JSON query and transformation language

Reference implementation of the JSONata query and transformation language.

Installation

npm install jsonata

Quick start

In Node.js:

var jsonata = require("jsonata");

var data = {
  example: [
    {value: 4},
    {value: 7},
    {value: 13}
  ]
};
var expression = jsonata("$sum(example.value)");
var result = expression.evaluate(data);  // returns 24

In a browser:

<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8">
    <title>JSONata test</title>
    <script src="https://cdn.jsdelivr.net/npm/jsonata/jsonata.min.js"></script>
    <script>
      function greeting() {
        var json = JSON.parse(document.getElementById('json').value);
        var result = jsonata('"Hello, " & name').evaluate(json);
        document.getElementById('greeting').innerHTML = result;
      }
    </script>
  </head>
  <body>
    <textarea id="json">{ "name": "Wilbur" }</textarea>
    <button onclick="greeting()">Click me</button>
    <p id="greeting"></p>
  </body>
</html>

More information

JSONata documentation
JavaScript API
Intro talk at London Node User Group
JSONata tech talk

Contributing

See the CONTRIBUTING.md for details of how to contribute to this repo.