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Intigrate POS Printer in asp.net core 6. Web Project

There are two methods to call POS printer to print PrintGuestCheck PayBill_Print using Microsoft.AspNetCore.Identity; using Microsoft.AspNetCore.Mvc; using Microsoft.AspNetCore.Mvc.Rendering; using Microsoft.EntityFrameworkCore; using System; using System.Collections.Generic; using System.Linq; using System.Security.Claims; using System.Threading.Tasks; using Tawoon.IT_SoftwareTemplate.BusinnessModels.BaseVM.Dashboard; using Tawoon.IT_SoftwareTemplate.BusinnessModels.Enum; using Tawoon.IT_SoftwareTemplate.Entities; using Tawoon.IT_SoftwareTemplate.Entities.Models; using System.IO; using System.Drawing.Printing; using System.Drawing; using System.Net.Sockets; using System.Text; using Microsoft.AspNetCore.Hosting; using Tawoon.IT_SoftwareTemplate.BusinnessModels.BaseVM; using Microsoft.Extensions.Options; using Tawoon.IT_SoftwareTemplate.Helper; using Microsoft.AspNetCore.Http; using System.Drawing.Imaging; namespace Tawoon.IT_SoftwareTemplate.Controllers { public class Dashboard...
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Linux server setup

   New Linux server Config ------------------------------ 1. mongod 2. redis 3. nginx 4. postgresql 5. docker 6. rabbitMQ 7. ssh 8. kuberneies 9. Jenkins 10. HAproxy  11. Github 12. NVM 13. npm  Server Restart Check list ------------------------------ 1. mongod 2. redis 3. nginx 4. postgresql 5.docker 6. rabbitMQ 7. ssh Note: sudo systemctl status nginx Microservice Deployment Check list --------------------------------------- 1. change port in .env 2. change port in dockerfile 3. change port in docker-compose.yml file 4.  make sure using the right port when you  run docker -d -p 0000:0000 iamgeName
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Object Storage System Design

Object Storage System Design 𝐁𝐮𝐜𝐤𝐞𝐭. A logical container for objects. The bucket name is globally unique. To upload data to S3, we must first create a bucket. 𝐎𝐛𝐣𝐞𝐜𝐭. An object is an individual piece of data we store in a bucket. It contains object data (also called payload) and metadata. Object data can be any sequence of bytes we want to store. The metadata is a set of name-value pairs that describe the object. In S3, an object resides in a bucket. The path looks like this: /bucket-to-share/style.css. The bucket only has metadata. The object has metadata and the actual data. The diagram below (Figure 1) illustrates how file uploading works. In this example, we first create a bucket named and then upload a file named “style.css” to the bucket. 1. The client sends an HTTP PUT request to create a bucket named “bucket-to-share.” The request is forwarded to the API service. 2. The API service calls Identity and Access Management (IAM) to ensure the user is authorized and has W...
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Setup Jenkins in Linux server

    set up a global credential  create pipeline     configure build steps   pipeline{     agent any     tools {nodejs "NodeJS"}     stages {         stage('Clone Repository'){             steps{                 git branch: 'test',                 credentialsId: 'LP_DEV_SERVER',                 url: 'git@github.com:littlesprogrammers/Freelaneer_Backend_Microservice_Shared_User.git'             }         }                  stage('Install Dependencies'){             steps {                 sh 'npm install'             }         }       ...
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Debug Entity Validation Exception C#

      Try this try and cath. put your SaveChanges() method inside the try block.             try             {                 db.tbl_Payroll_full_day_leaves.Add(tbl_Payroll_Leaves);                 if (0 < db.SaveChanges())                 {                     return true;                 }                 else                 {                     return false;                 }             }             catch (DbEntityValidationException e)       ...
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Multi-tenancy part 1: Strategy.

I want my eCommerce application  Suteki Shop  to be able to flexibly meet the requirements of any customer (within reason). How can we have a single product but enable our customers to have diverse implementations? I think the solution depends on the level of diversity and the number of customers. The right solution for a product with thousands of customers with little customization is different from a solution for a handful of customers with very diverse requirements. There are several axes of change to consider: Codebase. Do I have one codebase, or do I maintain a separate codebase for each customer? Application instance. Do I have one application instance to service all my customers, or does each customer have a separate one? Database schemas. Do I have one database schema, or do I have a different schema for each customer? Database instances. Do I have one database instance or separate ones for each customer? Lots of customers, a little customization Let's co...
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Reading HTML Table data using JavaScript and send to backend

Javar Script **************** //records_table var  Products  =   []; var  table ; table  =  document . getElementById ( "records_table" ); // Loop through each row and get ItemCode and Qty. for   ( var  r  =   0 ;  r  <  table . rows . length ;  r ++) { // This takes qty from Imput Field var  qty  =  table . rows [ r ]. cells [ 3 ]. getElementsByTagName ( 'input' )[ 0 ]. value ; // This takes text field data var  itemCode  =  table . rows [ r ]. cells [ 1 ]. innerHTML ; // Push the data to the Product array Products . push ({  ItemCode :  itemCode ,  Qty :  qty  }); } jQuery . ajax ({ type : ...
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