SOURCE

let data = [];

function preload() {
  let url = "test.json";
  data = loadJSON(url);
}

function setup() {
  createCanvas(600, 400);

  data = data.data;
  background(0);
  fill(255);

  for (let i = 0; i < data.length; i++) {
    let el = data[i];
    text(el.name, el.x, el.y);
  }
}

function draw() {}

<script src="https://unpkg.com/p5@0.7.2/lib/p5.min.js"></script>
<script src="https://unpkg.com/p5@0.7.2/lib/addons/p5.dom.min.js"></script>