akaDPR

Rails with  mongoDB 

rails new your_app_name --skip-active-record 

Install 'mongoid' ORM 

rails g model 

rails g controller 

akaDPR

var express = require('express');
var http = require('http')
var socketio = require('socket.io');
var mongojs = require('mongojs');

var ObjectID = mongojs.ObjectID;
var db = mongojs(process.env.MONGO_URL || 'mongodb://localhost:27017/local');
var backup = mongojs(process.env.MONGO_URL || 'mongodb://localhost:27017/backup');
var app = express();
var server = http.Server(app);

akaDPR

var express = require('express');
var http = require('http')
var mongojs = require('mongojs');
var ObjectID = mongojs.ObjectID;
var db = mongojs(process.env.MONGO_URL || 'mongodb://localhost:27017/local');
var archeive = mongojs(process.env.MONGO_URL || 'mongodb://localhost:27017/admin');
var app = express();
var server = http.Server(app);
const chatLimit = 5;
server.listen(3004, () => console.log('listening on *:3004'));

akaDPR

package main

import (
	"context"
	"encoding/json"
	"fmt"
	"log"
	"time"

	"github.com/jinzhu/gorm"

akaDPR

FROM golang:1.9.6-alpine3.7


WORKDIR /go/src/golang-chat

ADD . /go/src/golang-chat/

RUN apk add --no-cache git

RUN go get -u github.com/golang/dep/cmd/dep

akaDPR

package main

import (
  "fmt"
  "encoding/json"
)

func main() {
  samjson := `{"name":"mytheen"}`

akaDPR

/* Used NodeJS Client for ElasticSearch */

/* ----  A simple mapping for Products and ProductURL ----  */

{
  "properties": {
    "autocomplete": {
      "type": "text",
      "analyzer": "autocomplete",
      "search_analyzer": "autocomplete_search"

akaDPR

1) port-forward your postgres instance to localhost 

2) psql -U admin -h localhost -p 6432 -d <db-name>
    In the above command , I port-forwaded the postgres micro-service to localhost port 6432 

3) Once you enterd to psql terminal , 

4) <db-name>#= SHOW max_locks_per_transaction;

5) <db-name>#=  ALTER SYSTEM SET max_locks_per_transaction = 1024;

akaDPR

func (h *hub) run(db *gorm.DB) {

	for {

		fmt.Println("totalUsers", totalUsers)
		select {
		case s := <-h.register:
			/*anon function to defer */

			func() {

akaDPR

	router.HandleFunc("/ws/{rname}", func(w http.ResponseWriter, r *http.Request) {

		defer r.Body.Close()

		/*
			Authenticate user with custom-headers
			After authentication , Get the action from client

		*/