Amir Salar Pourhasan 🌱

Is Java best option for creating big financial application like crypto exchange? If yes, is what is the best Java framework for doing that?

I have an application using MongoDB for it. To speedup queries I decided to use a cache layer like Redis. So on all add, update, remove query, we made changed on both (MongoDB...

I mean what is best programming language for financial software like Binance exchange?

Senario: Imagine we have an API system for our customers. They use our service on their mobile or desktop. We need to creare a proxy application. Our servers IP are in this ...

If I want to create a powerful and scaled real-time application with lots of requests like a crypto exchange, its it good to use go lang? what are the best golang frameworks ...

Question about authentication by #JWT: 1- My client get loggin and I generate a token for him/her and store the token in localstorage. No If somebody else copy this token fro...

I have lunched a MongoDB 4 replicaset on 3 servers by provate IP successfully. Now I wanna bind another IP and it needs enabling TLS/SSL. I have created PEMKeyFile and CAFile...

I have a wordpress site example.com. and also I have another php app inside wrdpress folders which I need to access to it in url example.com/my_app but wordpress does not al...

We have a team including 10 programmers and designers from differente countries. We want to start a new project that each of us should do smoe task and part of application. ho...

I tried this document http://openresty.org/en/getting-started.html but I faced a problem with "content_by_lua_block" Then I tried this document https://www.digitalocean.com/c...

Anyone works with Openresty?I tried this document http://openresty.org/en/getting-started.html but I faced a problem with "content_by_lua_block" Then I tried this document ht...

In mongodb replication set: I have 3 digitalocean droplets that have private network to each others. I used this code to run replica set: `rs.initiate( {_id : "rs0", ...

guys I have ubuntu desktop. I login as root but everytime I open a terminal, I should again login as root in the terminal. when I open a text editor, and want to create new fi...

``` <?php require_once __DIR__.'/php-amqplib/vendor/autoload.php'; define('HOST', externalServerIp); define('PORT', 15672); define('USER', 'user'); define('PASS', 'pass'); de...

What is the best database for big applications like real-time crypto exchange (HFT) like Binance?

I have a question in blenc_encrypt. It is free but Is it safe? If nobody do not have my secrect key, they can not decrypt my code right? and my problem is in using it. I have...

I mistakely removed a project folder with command "rm -R projectFolder" on ubuntu server 18.06 How can I recover my project folder now?

I have nodejs application. I lunched it with pm2 cluster mode by 3 cluster nodes. the problem is sometimes requests came duplicatly at the moment. Imagin I have paymentgetway...

I have a larg json text in my app. I want to store it in my db as string. I converted it to string but it`s still too larg. iI want to compress or encoe it before saving in db...

yes sure. 4- If I generate my token (stateless token that do not need to use session anymore) on site.com and wanna check user authentication on dashboard.site.com, there ...