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Running Node Modules in React Native

How to use packages that depend on Node.js core modules in React Native.

See the [node-libs-react-native][node-libs-react-native] library as a convenience for implementing this method.

Node.js Core Modules

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#!/usr/bin/env python

""" Video stabilization with OpenCV (>=2.3) and Hugin

Adrien Gaidon
INRIA - 2012

TODO: add cropping, clean-up and improve doc-strings
"""

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from __future__ import division
import cv2
import numpy as np
import matplotlib.pyplot as plt
import os

os.chdir('C:/Users/gennady.nikitin/Dropbox/Coding/OpenCV')

# define variable for resize tratio
ratio = 1

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# Based on this answer: https://stackoverflow.com/a/61859561/1956278

# Backup old data
Rename-Item -Path "./data" -NewName "./data_old"

# Create new data directory
Copy-Item -Path "./backup" -Destination "./data" -Recurse
Remove-Item "./data/test" -Recurse
$dbPaths = Get-ChildItem -Path "./data_old" -Exclude ('mysql', 'performance_schema', 'phpmyadmin') -Recurse -Directory
Copy-Item -Path $dbPaths.FullName -Destination "./data" -Recurse

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const AWS = require('aws-sdk');
const {parallelScan} = require('@shelf/dynamodb-parallel-scan');

const TABLE_NAME = '[table-name]';
const PRIMARY_PARTITION_KEY = '[partition-key]';

async function fetchAll() {
  const CONCURRENCY = 250;
  const alias = `#${PRIMARY_PARTITION_KEY}`;
  const name = PRIMARY_PARTITION_KEY;

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Enterprise: NJVYC-BMHX2-G77MM-4XJMR-6Q8QF
Professional: KBJFW-NXHK6-W4WJM-CRMQB-G3CDH

Keys are generic ones. These are the same from MSDN account. 


Product Key	: -6Q8QF
Validity	: Valid
Product ID	: 00369-90000-00000-AA703
Advanced ID	: XXXXX-03699-000-000000-00-1032-9200.0000-0672017

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// Simple gist to test parallel promise resolution when using async / await

function promiseWait(time) {
  return new Promise((resolve, reject) => {
    setTimeout(() => {
        resolve(true);
    }, time);
});
}

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const delay = ms => new Promise(resolve => setTimeout(resolve, ms));

async function something() {
    console.log("this might take some time....");
    await delay(5000);
    console.log("done!")
}

something();

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The final result: require() any module on npm in your browser console with browserify

This article is written to explain how the above gif works in the chrome (and other) browser consoles. A quick disclaimer: this whole thing is a huge hack, it shouldn't be used for anything seriously, and there are probably much better ways of accomplishing the same.

Update: There are much better ways of accomplishing the same, and the script has been updated to use a much simpler method pulling directly from browserify-cdn. See this thread for details: mathisonian/requirify#5

inspiration