[error] Failed to initialize session.

[whakru]

When I try to use it, I get:

[[ip][login]][debug] POST /login
[[ip][login]][error] Failed to initialize session

import { Panel } from "3x-ui";
const uripanel = `https://login:pass@ip:port/baseurl/`;
const panel = new Panel(uripanel)
panel.debug = true; 
panel.stdTTL = 0;
console.log(await panel.getInbounds())

but another project on the same server uses the same library and everything works fine.
Are there any restrictions that I'm trying to connect to the same server from different projects on the same PC?
could there be some kind of conflict?

[whakru]

I decided to simulate your code like this:

const data = {
    username: 'login',
    password: 'pass'
};

const sendPostRequest = async () => {
    try {
        const response = await axios.post('https://ip:port/base/login', data, {
            headers: {
                'Content-Type': 'application/json'
            }
        });
        const { status, data: responseData } = response;

        console.log(`: ${status}`);
        console.log(':', responseData);
    } catch (error) {
        console.error(':', error.message);
    }
};

and I immediately got an error: self-signed certificate

Then everything fell into place)
I needed to use process.env.NODE_TLS_REJECT_UNAUTHORIZED = '0';

It might be worth making a variable to enable SSL ignoring)