belgoros

Elixir + Phoenix Framework + Guardian + JWT + Comeonin

Preparing environment

We need to generate secret key for development environment.

mix phoenix.gen.secret
# ednkXywWll1d2svDEpbA39R5kfkc9l96j0+u7A8MgKM+pbwbeDsuYB8MP2WUW1hf

Let's generate User model and controller.

belgoros

package hello;

import hello.dto.PostDto;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.batch.core.Job;
import org.springframework.batch.core.Step;
import org.springframework.batch.core.configuration.annotation.EnableBatchProcessing;
import org.springframework.batch.core.configuration.annotation.JobBuilderFactory;
import org.springframework.batch.core.configuration.annotation.StepBuilderFactory;

belgoros

lucky-blog git:(master) bin/setup

▸ Installing node dependencies
warning laravel-mix > autoprefixer > browserslist@2.11.3: Browserslist 2 could fail on reading Browserslist >3.0 config used in other tools.                                                               
warning laravel-mix > css-loader > cssnano > autoprefixer > browserslist@1.7.7: Browserslist 2 could fail on reading Browserslist >3.0 config used in other tools.                                         
warning laravel-mix > css-loader > cssnano > postcss-merge-rules > browserslist@1.7.7: Browserslist 2 could fail on reading Browserslist >3.0 config used in other tools.                                  
warning laravel-mix > css-loader > cssnano > postcss-merge-rules > caniuse-api > browserslist@1.7.7: Browserslist 2 could fail on reading Browserslist >3.0 config used in other tools.                    
warning "laravel-mix > img-loader@3.0.1" has unmet peer dependency "imagemin@^5.0.0 || ^6.0.0".                                               

belgoros

let regex;

/* matching a specific string */
regex = /hello/; // looks for the string between the forward slashes (case-sensitive)... matches "hello", "hello123", "123hello123", "123hello"; doesn't match for "hell0", "Hello" 
regex = /hello/i; // looks for the string between the forward slashes (case-insensitive)... matches "hello", "HelLo", "123HelLO"
regex = /hello/g; // looks for multiple occurrences of string between the forward slashes...

/* wildcards */
regex = /h.llo/; // the "." matches any one character other than a new line character... matches "hello", "hallo" but not "h\nllo"
regex = /h.*llo/; // the "*" matches any character(s) zero or more times... matches "hello", "heeeeeello", "hllo", "hwarwareallo"

belgoros

// 20181203173529
// http://localhost:3000/apidocs

{
  "swagger": "2.0",
  "info": {
    "version": "1.0.0",
    "title": "Example Project API",
    "description": "A Swagger Project API that uses a bla-bla-bla project features in commliance with the swagger-2.0 specification",
    "contact": {

belgoros

import Ember from 'ember';

export default Ember.Component.extend({
});

belgoros

import Ember from 'ember';

export default Ember.Component.extend({
  // this component only received args from the caller
  // but it does track its own local info property
  
  info: '', // initial form field value
});

belgoros

I tried to test a single action:

public class ListsController extends APIController  {

    public void index(){
        view("lists", List.findAll().orderBy("id"));
        render().contentType("application/json");
    }
}

belgoros

The best way (I've found) to completely uninstall node + npm is to do the following:

Go to /usr/local/lib and delete any node and node_modules:

cd /usr/local/lib
sudo rm -rf node*

Go to /usr/local/include and delete any node and node_modules directory:

belgoros

Setting Amazon S3 for Paperclip and Heroku

The latest Paperclip release 5.1.0 has changed a little bit the way to set it up with Amazon S3 service (Amazon Simple Storage Service). Moreover, after googling a lot here and there, we could see many solutions and settings, some of them being outdated, some - often different and did not work well. So I decided to summarize in one replace all the steps needed to set up your Rails application deployed on Heroku and be able to use it with Paperclip 5 and Amazon S3 service.

In case you don't know, Heroku does not allow your Rails application to write and offers read only access. What means that you can't use Paperclip and save your files to Heroku's file system.

So you will have to find a way to upload/store/read your files. As stated in Paperclip documentation, Paperclip ships with 3 storage adapters: