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clodal / _plugin.js
Created January 20, 2017 03:23
Create jQuery plugin via prototype inheritance
/**
* Generate a jQuery plugin
* @param {String} name - Plugin name
* @param {{}} object - Class of the plugin
*
* @example
* import setPlugin from 'plugin';
*
* /// 1. Design an object representing the concept/behaviours to model
* // @type {{}}
@clodal
clodal / 1A_ajax_via_serializeArray.js
Created March 27, 2017 06:52
Yii ajax post to php
return $.ajax({
context: this,
type: 'post',
dataType: 'json',
url: this.$element.attr('action'),
data: $form.serializeArray(), // send data as a serialized array
});
@clodal
clodal / Bar.js
Created June 7, 2018 10:27
React Unit Tests: Jest + Enzyme Basic Patterns
import React from 'react'
import { Icon, Button, Segment } from 'semantic-ui-react'
class Bar extends React.Component {
state = {
isCool: false,
}
toggleCool = () => this.setState({ isCool: !this.state.isCool })
render() {
const { isCool } = this.state
@clodal
clodal / log.md
Last active July 23, 2018 07:12
Sequelize + Postgres DateTime UTC Behaviour

Sequelize v4 + Postgres DateTime UTC Behaviour

19 July 2018

  • Sequelize will save datetime with timezone in postgres.
  • Sequelize will always save datetime in UTC.
  • Sequelize will retrieve datetime based on server timezone settings.
  • Zeit Now.sh sfo1 servers are in UTC.
  • Amazon RDS us-west-1 database instances are in UTC.
  • When writing datetime to the database, sequelize will automatically convert the incoming client datetime to UTC, based on the timezone specified in sequelize.options.timezone.
  • When reading datetime from the database, sequelize will return datetime in UTC. The server or client is expected to be responsible for formatting this datetime back to the user's locale.
@clodal
clodal / simple-aws-eb-nodejs-setup.md
Last active July 23, 2018 14:03

Deploying an AWS Elastic Beanstalk NodeJS instance

The following is a set of processes outlining my usual AWS workflow with elasticbeanstalk, rds and vpc

  1. Create eb application on aws console (Select Webserver -> NodeJS)
  2. Create eb environment with $ eb init --profile=<PROFILE_NAME>
  3. Select application
  4. Do $ eb deploy
  5. Update eb config:
    • nodejs v8.11.1
    • environment type: load balanced
@clodal
clodal / postgres-commands.md
Last active August 24, 2018 02:41
Postgres Commands

Postgres Dump & Restore Database

pg_dump -h <DB_HOSTNAME> -U <DB_USERNAME> -f dump.sql <DB_NAME>

pg_restore -d <DB_NAME> <DUMP_FILE>
// OR
psql -d <DB_NAME> -f <DUMP_FILE>
@clodal
clodal / aws-rds.md
Last active August 1, 2018 04:17
AWS RDS Tips

How to drop RDS database?

  1. Connect to remote psql shell psql --host=<DB_HOST> --port=5432 --username=<DB_USER> --dbname=postgres
  2. Enter db password if prompted
  3. DROP DATABASE <DB_NAME>;
  4. CREATE DATABASE <DB_NAME>;

Note: This assumes AWS VPC does not block the connection. Check to ensure that you have access through this port.

@clodal
clodal / styled-components-ssr.md
Created August 3, 2018 06:13
Debug notes on: Getting styled-components to play nice with downstream isomorphic project when importing from an npm library
@clodal
clodal / sequelize-max-connections-debug-notes.md
Created August 15, 2018 15:09
Debug notes on sequelize max-connections issue

Debug Notes for Sequelize + PG max connections issue

The following are commands useful for debugging pool connections in a sequelize + pg setup:

Connect to local psql shell psql -d <DB_NAME>

Connect to remote psql shell psql --host= --port=5432 --username= --dbname=

@clodal
clodal / debug-mongoose-logs.md
Last active August 19, 2018 07:32
Mongoose logs for the issue at https://stackoverflow.com/questions/51801978/express-nodejs-mongoose-app-server-response-slow

➜ prod git:(master) ✗ now logs https://prod-lmnssdtqy.now.sh/ -n 100000 2018-08-19T07:20:11.692Z Mongoose: answers.find({ state: 'approved', question: ObjectId("5b5ead64528708004d570fd4") }, { fields: {} }) 2018-08-19T07:20:11.721Z Mongoose: answers.find({ state: 'approved', question: ObjectId("5b5eb95f528708004d571036") }, { fields: {} }) 2018-08-19T07:20:11.748Z Mongoose: answers.find({ state: 'approved', question: ObjectId("5b5ed47a528708004d571078") }, { fields: {} }) 2018-08-19T07:20:11.776Z Mongoose: answers.find({ state: 'approved', question: ObjectId("5b5ed56f528708004d571079") }, { fields: {} }) 2018-08-19T07:20:11.803Z Mongoose: answers.find({ state: 'approved', question: ObjectId("5b5ee267528708004d5710b0") }, { fields: {} }) 2018-08-19T07:20:11.831Z Mongoose: answers.find({ state: 'approved', question: ObjectId("5b5ee86e528708004d5710ba") }, { fields: {} }) 2018-08-19T07:20:11.858Z Mongoose: answers.find({ state: 'approved', question: ObjectId("5b5ef2c1528708004d5710c7") }, { fields: {} })