title: How to serialize 64-bit integer in JavaScript?
body: <p><a href="https://docs.datadoghq.com/api/?lang=bash#tracing" rel="noreferrer">Datadog Tracing API</a> requires 64-bit integers serialized as JSON numbers.</p>
  
  <pre><code>{
    "span_id": 16956440953342013954,
    "trace_id": 13756071592735822010
  }
  </code></pre>
  
  <p>How can I create JSON with 64-bit integer numbers using JavaScript?</p>