jremi

Server Less Functions

Instructions

Create a netlify.toml file for using serverless functions on the website hosted on Netlify.
If any other hosting service search for the documentation for creating .toml file.
Put the functions in the functions directory in the root of the project.
Every function file must contain one export handler and only that will be valid and can be used.
```
exports.handler = async function(event, context) {...};
```

Node.js Deployment

Steps to deploy a Node.js app to DigitalOcean using PM2, NGINX as a reverse proxy and an SSL from LetsEncrypt

1. Sign up for Digital Ocean

If you use the referal link below, you get $10 free (1 or 2 months) https://m.do.co/c/5424d440c63a

2. Create a droplet and log in via ssh

I will be using the root user, but would suggest creating a new user

Migrations & Seeding

What are migrations??

Migrations are a way to make database changes or updates, like creating or dropping tables, as well as updating a table with new columns with constraints via generated scripts. We can build these scripts via the command line using knex command line tool.

To learn more about migrations, check out this article on the different types of database migrations!

Creating/Dropping Tables

If you want to SSH to a VPS which is running openVPN do the following:
source: https://serverfault.com/questions/659955/allowing-ssh-on-a-server-with-an-active-openvpn-client

Enable

The problem is that the default gateway gets changed by OpenVPN, and that breaks your current SSH connection unless you set up appropriate routes before you start OpenVPN.

What follows works for me. It uses iptables and ip (iproute2). Below, it is assumed that the default gateway interface before OpenVPN is started is "eth0". The idea is to ensure that when a connection to eth0 is made, even if eth0 is not the default gateway interface anymore, response packets for the connection go back on eth0 again.

You could use the same number for the connection mark, firewall mark and routing table. I used distinct numbers to make the diffences between them more apparent.

Vue.js and Vuex - best practices for managing your state

Modifying state object

Example

If you have to extend an existing object with additional property, always prefer Vue.set() over Object.assign() (or spread operator).

Example below explains implications for different implementations.

	ethers = require('ethers')
	require('dotenv').config()

	async function main () {
	// Connect to an EVM network
	const provider = new ethers.providers.JsonRpcProvider(`https://polygon-mainnet.g.alchemy.com/v2/${process.env.RPC_KEY}`)
	// Get the gas price
	const gasPrice = provider.getGasPrice()
	// Create a wallet object from private key
	const wallet = new ethers.Wallet(`${process.env.PRIVATE_KEY}`)

	npx asc src/assembly/hook.ts \
	-O3 \
	--noAssert \
	--runtime minimal \
	-b build/hook.wasm \
	-t build/hook.wat \
	-d build/hook.d.ts

	{
	"meta": {
	"theme": "elegant"
	},
	"basics": {
	"name": "Jremi",
	"label": "Full-Stack Developer",
	"summary": "I’m a remote full-stack Javascript developer with a frontend focus utilizing Vue.js",
	"website": "https://jzbg.dev",
	"picture": "https://avatars.githubusercontent.com/u/5322988",

	export default {
	props: {
	stripe: {
	type: String,
	required: true,
	},
	options: {
	type: Object,
	required: true,
	}

	<!DOCTYPE html>
	<html>
	<head>
	<meta charset="utf-8">
	<meta name="viewport" content="width=device-width">
	<title>JS Bin</title>
	<style id="jsbin-css">
	img {
	border-radius: 8px;
	border: 1px solid gray;