oklink.js

let API_KEY = "a2c903cc-b31e-4547-9299-b6d07b7631ab";
let a = 1111111111111;

function comb(t, e) {
    let n = "".concat(t, "|").concat(e);
    return n.toString("base64");
}

function encryptApiKey() {
    let t = API_KEY,
        e = t.split(""),
        n = e.splice(0, 8);
    return (t = e.concat(n).join(""));
}

function encryptTime(t) {
    let e = (1 * t + a).toString().split(""),
        n = parseInt(10 * Math.random(), 10),
        r = parseInt(10 * Math.random(), 10),
        o = parseInt(10 * Math.random(), 10);
    return e.concat([n, r, o]).join("");
}

function getApiKey() {
    let t = new Date().getTime(),
        e = encryptApiKey();
    return (t = encryptTime(t)), comb(e, t);
}

console.log(getApiKey());