api-js-example.js

const fetch = require("node-fetch");

const botID = client.user.id; // You will probably need to change this
const URL = `https://api.discordextremelist.xyz/v2/bot/${botID}/stats`;

const reqHeaders = {
    "Content-Type": "application/json",
    "Authorization": "TOKEN" // Put your DELAPI token here
}

const reqBody = {
    "guildCount": client.guilds.cache.size // You will probably need to change this
}

fetch(url, { method: "POST", headers: reqHeaders, body: JSON.stringify(reqBody)})
.then((res) => {
    return res.json()
})
.then((json) => {
    console.log(json);
});

You don't use backticks where you define the URL. This causes it to just say ${botID} instead of the actual bot ID.

Thank you for noticing, you're absolutely right, let me fix.

You specifed the url string wrong in the fetch(url, { method: "POST", headers: reqHeaders, body: JSON.stringify(reqBody)}) .then((res) => { return res.json()}) part.

According to your const URL = `https://api.discordextremelist.xyz/v2/bot/${botID}/stats`; it should be fetch(URL, { method: "POST", headers: reqHeaders, body: JSON.stringify(reqBody)}) .then((res) => { return res.json()})

Basically it's case sensative.