سوپرمن میخوان یا برنامه نویس؟؟؟

In order to checkout all files in a project in GIT:

git checkout -- .

#git #checkout

https://www.atlassian.com/git/tutorials/rewriting-history/git-rebase

#git #git_rebase #rebase

🔹مسابقاتِ برنامه‌نویسیِ Backend و Frontend تومن

در این مسابقه سوالاتِ🔹بک‌اند، Python و Django و 🔹فرانت‌اند Front-End و Reactjs‌ می‌باشد.

👈علاقه‌مندان میتوانند به صورت مجزا در این دو مسابقه شرکت کنند.
🔹همراه با ۳ میلیون جایزه نقدی

☝️از نفرات برتر این مسابقه جهت استخدام در شرکت تومن دعوت به عمل می‌آید.
⏳زمان مسابقه: ۲۱ تیرماه روز جمعه

ثبت‌نام از در این مسابقه از طریق:👇
🔹https://quera.ir/r/dpi1h
➖➖➖➖➖➖➖
@Quera_ir

Did you know that python print command takes sep argument as a separator between string arguments?

print('ali', 'reza', sep=', ') # output: ali, reza

#python #print #sep #separator

https://www.thoughtworks.com/insights/blog/rest-api-design-resource-modeling

#RESTAPI #REST #API #collection #resource #CQRS #CRUD #URI #URN #REST_API

#sigkill vs #sigterm

https://github.com/micro/examples/blob/master/service/main.go

#golang #grpc #protobuf #consul #mdns #gomicro #github

https://stackoverflow.com/questions/18770545/why-is-my-git-submodule-head-detached-from-master

#stackoverflow #git #submodule

It came in handy for me today :)
How about u?

#reference #bible

Add health check to gRPC services and use this command line tool to check for service status:
- https://github.com/grpc-ecosystem/grpc-health-probe

#grpc #health #health_check

ghz:
- Simple gRPC benchmarking and load testing tool inspired by hey and grpcurl.

sample ghz command to load test a service:

ghz --insecure --proto my_proto.proto --call my_proto.AService.MethodById -d '{"user_id": "5d32b19b6fea7a28de186b15"}' 0.0.0.0:9000

The sample output will be:

Summary:
  Count:        200
  Total:        557.11 ms
  Slowest:      319.18 ms
  Fastest:      33.30 ms
  Average:      132.56 ms
  Requests/sec: 358.99

Response time histogram:
  33.300 [1]    |
  61.887 [6]    |∎∎
  90.475 [98]   |∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎∎
  119.062 [23]  |∎∎∎∎∎∎∎∎∎
  147.650 [12]  |∎∎∎∎∎
  176.238 [10]  |∎∎∎∎
  204.825 [7]   |∎∎∎
  233.413 [12]  |∎∎∎∎∎
  262.000 [9]   |∎∎∎∎
  290.588 [9]   |∎∎∎∎
  319.176 [13]  |∎∎∎∎∎

Latency distribution:
  10% in 70.25 ms
  25% in 83.84 ms
  50% in 89.90 ms 
  75% in 178.51 ms
  90% in 275.84 ms
  95% in 301.41 ms
  99% in 317.01 ms

Status code distribution:
  [OK]   200 responses

#grpc #loadtest #ghz #grpcurl #hey #proto

you can give --format json option to ghz in order to get average response time or the slowest in order to use in gitlab pipelines for example

How tom remove dangling volumes in docker?

docker volume rm $(docker volume ls -qf dangling=true)

#docker #linux #dangling

golang practical programming course:

https://www.youtube.com/watch?v=G3PvTWRIhZA&list=PLQVvvaa0QuDeF3hP0wQoSxpkqgRcgxMqX

#golang #course #youtube

os.Rename in goLang?

Function signature:

func Rename(oldpath, newpath string) error

What Rename does?

Rename renames (moves) oldpath to newpath. If newpath already exists and is not a directory, Rename replaces it. OS-specific restrictions may apply when oldpath and newpath are in different directories. If there is an error, it will be of type *LinkError.

#golang #go #os #rename #os_rename

🛑 Guys from now on you may hear more about Golang than Python for few months ahead. :)

As you may already know in Python you can format your string using format as below:

file_name = "/root/openvpn/{}.ovpn".format(my_file_name)
// Or
file_name = "/root/openvpn/%s.ovpn" % my_file_name

In golang you need to use Sprintf method of fmt package like follow:

var fileName = fmt.Sprintf("/root/openvpn/%s.ovpn", myFileName)

#python #golang #go #fmt #sprintf #format

Echo: High performance, minimalist Go web framework
- https://echo.labstack.com
- https://github.com/labstack/echo

A sample hello-world web server using Echo:

package main

import (
  "net/http"
  "github.com/labstack/echo/v4"
  "github.com/labstack/echo/v4/middleware"
)

func main() {
  // Echo instance
  e := echo.New()

  // Middleware
  e.Use(middleware.Logger())
  e.Use(middleware.Recover())

  // Routes
  e.GET("/", hello)

  // Start server
  e.Logger.Fatal(e.Start(":1323"))
}

// Handler
func hello(c echo.Context) error {
  return c.String(http.StatusOK, "Hello, World!")
}

inheritance in Golang:

- https://golangbot.com/inheritance/

#golang #go #inheritance #struct