ost.js

const http = require("https")
const querystring = require('querystring');
var tokens = []
var jsonfile = require('jsonfile')

function getin(payload) {
    var data ={}
    if (payload) {
        if (! payload.page_no) {
            jsonfile.writeFile("out.json", tokens)
            return
        }
        data = {
            "next_page_payload[page_no]":payload.page_no,
            "next_page_payload[timestamp]":payload.timestamp,
            "next_page_payload[direction]":payload.direction
        }
    }
    var url = "https://view.ost.com/chain-id/1409/tokens/top?"+querystring.stringify(data)
    http.get(url, (res) => {
        res.setEncoding("utf8");
    let body = "";
    res.on("data", data => {
        body += data;
    });
    res.on("end", () => {
        //sleep(1)
        body = JSON.parse(body);
        tokens=tokens.concat(body.data["top_tokens"])
        getin(body.data.meta["next_page_payload"])
    });
    })
}

getin()