santosh

Authenticate A Golang API With JSON Web Tokens

JSON Web Tokens refresher

The client sends login credentials, the server checks matches the credentials

santosh

This is an incomplete list:

• Make spritesheet of all images.
• Use CDN for static websites
• Use Audit tools (Chrome)
• Google PageSpeed
  • Minify the CSS and JavaScript you are using
  • Reduce the HTTP request
  • Optimize the images as much possible

santosh

Note this command.

find . -not -path '*/\.*' -iname '*' -maxdepth 1 -mtime -1

Let's cut it open and see what's happening.

1. find .: This says find in the current directory (. is cwd).
2. -not -path '*/\.*': This says not to match dot (hidden) files.
3. -iname '*': This says match * (any name). The i in iname is for case-insensitive.
4. -mtime -1: This says only match files which are modified less than 1 day(s) ago. If - is turned to +, it will say only match files which are not modified after one day which is same as matching every file which are modified after one day.

santosh

package main

import (
	"fmt"
	"os"

	"github.com/aws/aws-sdk-go/aws"
	"github.com/aws/aws-sdk-go/aws/session"
	"github.com/aws/aws-sdk-go/service/s3"
)

santosh

6.1101,17.592
5.5277,9.1302
8.5186,13.662
7.0032,11.854
5.8598,6.8233
8.3829,11.886
7.4764,4.3483
8.5781,12
6.4862,6.5987
5.0546,3.8166

santosh

package main

import (
	"encoding/json"
	"fmt"
	"net/http"
	"os"
)

const clientID = "<your client id here>"

santosh

package main

import (
	"fmt"
	"math/rand"
	"sync"
	"time"
)

// Worker pool is a collection of threads which are waiting

santosh

• Add concurrency.
• Now deal with it.
• Mutexes, somaphores, context switching
• Check for race condition.

santosh

package main

import "fmt"

type SalaryCalculator interface {
	CalculateSalary() int
}

type Permanent struct {
	empId    int

santosh

from flask import Flask, request, make_response, redirect
app = Flask(__name__)

@app.route('/')
def index():
	response = make_response('<h1>This document carries a cookie!</h1>')
	response.set_cookie('answer', '42')
	return response

if __name__ == '__main__':