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Send API POST Request in MS SQL Server

To send an API POST request in MS SQL Server using multipart/form-data, you can use the following T-SQL code: Example of content type : multipart/form-data SQL DECLARE @url VARCHAR(200) = 'https://example.com/api'; DECLARE @boundary VARCHAR(50) = '---------------------------' + CAST(NEWID() AS VARCHAR(36)); DECLARE @param1Name VARCHAR(50) = 'name'; DECLARE @param1Value VARCHAR(50) = 'John Doe'; DECLARE @param2Name VARCHAR(50) = 'email'; DECLARE @param2Value VARCHAR(50) = 'johndoe@example.com'; DECLARE @param3Name VARCHAR(50) = 'file'; DECLARE @param3Value VARBINARY(MAX) = (SELECT BulkColumn FROM OPENROWSET(BULK 'C:\path\to\file.txt', SINGLE_BLOB) AS x); DECLARE @param4Name VARCHAR(50) = 'description'; DECLARE @param4Value VARCHAR(200) = 'This is a sample file'; DECLARE @formData NVARCHAR(MAX) = N'--' + @boundary + CHAR(13) + CHAR(10) +
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Create Custom Form Control for ng-select in Angular

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How to Create Custom Form Control in Angular  Why we create custom form control ? Normally, we used to create custom form control for re-usability.  The best advantage is that to add common functionality and features in this custom form control and extend the functionality as per our need and requirement.  And we can use everywhere into the application. But this example will tell you how to create custom form control to extend the functionality of  angular ng-select component.  We are adding a feature for this control, multi selection along with checkbox. Before that, we need to know what is the basic syntax of creating custom form control in angular. So, we start by implementing the ControlValueAccessor interface from @angular/forms into the component. This interface has three functions that need to be implemented and one optional functional. writeValue(obj: any): void { } registerOnChange(fn: any): void { } registerOnTouched(f
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Use immutable data structures to avoid unnecessary change detection In Angular

In Angular, change detection is triggered whenever there is a change in the component's data or state. This can be a performance bottleneck if the component's data is updated frequently, and the component has a lot of child components or bindings. One way to optimize change detection is to use immutable data structures. Immutable data structures are data structures that cannot be modified once they are created. Instead, when a change is made to the data, a new instance of the data structure is created with the updated values. Here's an example of how to use immutable data structures in Angular: HTML import { Component } from '@angular/core'; import { List } from 'immutable'; @Component({ selector: 'app-list', template: ` {{ item }} ` }) export class ListComponent { items = List (['item 1', 'item 2', 'item 3']); addItem() { // The
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Map Operator in RxJs

The map operator in RxJS is used to transform the emissions of an Observable stream. It applies a function to each emitted value and returns a new Observable with the transformed values. The original values are not modified. The map operator is often used in combination with other operators to create complex data flows. Advantages of the map operator in RxJS include: Transformation of data : The map operator allows you to transform the data emitted by an Observable, which can be very useful for manipulating the data in the way you need it. Efficiency : The map operator is an efficient way to modify data, as it does not modify the original data and creates a new Observable with the transformed data. Composability : The map operator is a composable operator, which means you can combine it with other operators to create more complex data flows. Clarity : Using the map ope
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HTTP and grPC Communication protocols used in Microservices

Microservices architecture is an approach to building distributed systems that involves breaking down a large application into smaller, loosely coupled services that communicate with each other through APIs. There are several communication protocols used in microservices architecture, including HTTP and gRPC. HTTP: HTTP (Hypertext Transfer Protocol) is a widely used protocol for communication between web applications and servers. In microservices architecture, HTTP is used for communication between services as it's a well-established and reliable protocol that's widely supported. HTTP is simple and easy to use, and it supports a wide range of data formats like JSON, XML, and plain text, making it a popular choice for microservices communication. gRPC: gRPC is a modern, high-performance, open-source protocol for communication between microservices. It uses Google's Protocol Buffers as a data format, which is a language-neutral, platform-neu
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