sample.md

const w = new WrapFns()

w.on('call::https.request', console.log)

w.wrap('https.request', https, 'request');

Capture all traffic Http and Https

w.wrap('https.request', https, 'request');
w.wrap('http.request', http, 'request');
w.wrap('globalThis.fetch', globalThis, 'fetch');

WrapFns.js

class WrapFns {
    tokensOriginals = {}

    wrap(label, target, fnName) {
        const self = this;
        const original = this.tokensOriginals[label] ?? Symbol('original');
        this.tokensOriginals[label] = original;
        if (target[original] !== undefined) {
            throw new Error(`${label} already wrapped`);
        }
        target[original] = target[fnName]
        target[fnName] = function wrap(...args) {
            try {
                const res = target[original](...args);
                self.emit(`call::${label}`, args, res);
                return res;
            } catch (e) {
                self.emit(`call_error::${label}`, args, e);
                throw e;
            }
        }
    }

    _events = {};

    on(name, listener) {
        this._events[name] = this._events[name] || [];
        this._events[name].push(listener);
    }

    off(name, listener) {
        if (this._events[name]) {
            this._events[name] = this._events[name].filter(l => l !== listener);
            if (this._events[name].length === 0) {
                const { [name]: _, ...events } = this._events;
                this._events = events;
            }
        }
    }

    emit(name, ...args) {
        if (this._events[name]) {
            this._events[name].forEach(l => l(...args));
        }
    }
}