srghma

# connect
ssh centos@pubip_or_dns
ssh -i ~/.ssh/amazon/us-east-1 centos@pubip_or_dns

# add local key
paste ~/.ssh/id_rsa.pub to ~/.ssh/authorized_keys

# filezilla
https://forums.aws.amazon.com/thread.jspa?messageID=741338 but interactive

srghma

function doAsyncOnSubmit(form, asyncFn) {
  const onSubmitFunction = async function(e) {
    e.preventDefault()

    form.off('submit', onSubmitFunction)

    const doSubmit = await asyncFn()

    if (doSubmit) {
      form.submit()

srghma

https://github.com/pawelniewie/zen2

https://github.com/hummingbird-me/hummingbird-server

https://github.com/decidim/decidim

https://github.com/TapasTech/hermes_backend

srghma

Solved questions:
- how to send email after calling function? - postgres listen, notify

Unsolved questions: 
- postgresql multidispatch functions?
- how to upload image and save it in db? (maybe schema stitching)
- rails like polymorphic relations?
- how to make vdare like role permissions? 

srghma

export DB_NAME=
export DB_USER=
mysqldump -p -u "$DB_USER" "$DB_NAME" | gzip > "$HOME/$DB_NAME-backup-$(date +%F).sql.gz"

srghma

 bcrypt examples in ruby and php

srghma

make_dhparam:
	openssl dhparam -out backend/dhparams.pem 2048

nixops_create:
	nixops create '<base.nix>'

nixops_purge:
	nixops destroy --all
	nixops delete --all

srghma

Rails, bad configuration

We thought it was memory leak, but it was bad configuration

configuration that didnt work before:

1. puma (RAILS_MAX_THREADS: 8, WEB_CONCURRENCY: 8)
2. db pool - 10
3. memory cache

srghma

  $(".chosen-select-with-add-new").chosen({
    no_results_text: "Click Enter or Tab to add new option",
    width: '100%'
  }).parent().find('.chosen-container .search-field input[type=text]').keydown(function (evt) {
    // get keycode
    const stroke = evt.which != null ? evt.which : evt.keyCode;
    // If enter or tab key
    if (stroke === 9 || stroke === 13) {
      const target = $(evt.target);
      // get the list of current options

srghma

Project specification:

ecommerce + news

Technologies:

• plain rails + jquery
• rectify for frontend (similar to https://github.com/BjornMelgaard/rails-bookstore)
• cocoon for rapid admin panel development
• stripe for payments
• gitlab ci for continuous integration