Knowledge Factory

To build REST CRUD APIs using Azure SQL Database and ASP.NET, you can follow these steps: Step 1: Create an Azure SQL Database 1. Sign In to the Azure Portal Open Azure Portal . Sign in with your Azure credentials. If you don’t have an account, create one. 2. Navigate to the "Create a Resource" Section In the Azure Portal, click on "Create a resource" . In the Search box, type "SQL Database" and select it from the search results. 3. Configure the SQL Database This step involves configuring the necessary settings for your database. Database Settings: Subscription : Select your Azure subscription. Resource Group : You can either create a new resource group or select an existing one. Resource groups help organize and manage related resources. Database Name : Choose a name for your database (e.g., MySqlDb ). Server : You need to create a new SQL Server or select an existing one. If creating a new server, click on "Create new" , and provide: Server ...

Here’s how you can build RESTful CRUD APIs using Ktor and MongoDB for a basic application: Step 1: Create Ktor Project Set Up Dependencies in your build.gradle.kts : dependencies { implementation( "io.ktor:ktor-server-core:2.3.3" ) implementation( "io.ktor:ktor-server-netty:2.3.3" ) implementation( "org.mongodb:mongodb-driver-sync:4.10.2" ) implementation( "ch.qos.logback:logback-classic:1.4.11" ) } Main Application File (Application.kt) : import io.ktor.application.* import io.ktor.features.ContentNegotiation import io.ktor.http.HttpStatusCode import io.ktor.jackson.jackson import io.ktor.response.respond import io.ktor.routing.* import io.ktor.server.engine.embeddedServer import io.ktor.server.netty.Netty import io.ktor.features.StatusPages import org.litote.kmongo.* import io.ktor.request.receive import io.ktor.http.HttpMethod // MongoDB client setup val client = KMongo.createClient() val database = client.ge...

Building RESTful CRUD APIs using Ktor and PostgreSQL is a powerful way to create scalable and efficient web applications. Below is a step-by-step guide to building a simple RESTful API that interacts with a PostgreSQL database, where you can create, read, update, and delete records. 1. Setting Up the Project Start by setting up a Ktor project. Here’s an outline of the steps: Add dependencies to build.gradle.kts (Kotlin DSL): plugins { kotlin( "jvm" ) version "1.8.20" application } dependencies { implementation( "io.ktor:ktor-server-core:2.2.4" ) implementation( "io.ktor:ktor-server-netty:2.2.4" ) implementation( "io.ktor:ktor-serialization-kotlinx-json:2.2.4" ) implementation( "org.jetbrains.exposed:exposed-core:0.41.1" ) implementation( "org.jetbrains.exposed:exposed-dao:0.41.1" ) implementation( "org.jetbrains.exposed:exposed-jdbc:0.41.1" ) implementation( "or...

Creating a full-stack CRUD (Create, Read, Update, Delete) application with Flutter for the front end and Spring Boot for the back end is a great way to learn modern web and mobile development. Below is a step-by-step guide to build this application. Prerequisites Java and Spring Boot knowledge Flutter setup and knowledge IDEs like IntelliJ IDEA or VS Code Step 1: Create a Spring Boot Application (Back-end) 1.1. Set up Spring Boot Project Use Spring Initializr to generate a Spring Boot project: Project: Maven Project Language: Java Spring Boot: 3 .x or latest Dependencies: Spring Web , Spring Data JPA , H2 Database (or any other database you prefer) Once the project is generated, unzip it and open it in your IDE. 1.2. Create a Model Create a Java class to represent the entity for the CRUD operation. For example, if you're managing "Product" information: @Entity public class Product { @Id @GeneratedValue (strategy = GenerationType.IDENTITY) private Lo...

In this section,  we will learn how to build REST CRUD APIs with Spring Boot , and Astra DB . Astra DB DataStax Astra DB is a cloud-native, scalable Database-as-a-Service built on Apache Cassandra . Create a Database First, Sign into the datastax at https://astra.datastax.com . Then click on the "Databases" button. You will be taken to a page like the below image, then click on the " Create Database " button. Then enter Database name , Provider , and, Region , then click on the " Create Database " button. Now, You can see "Your database is initializing..." like the below image. You will be taken to a page like the below image. Copy " Database ID " and " region name " and keep them for future purposes. Generate Application Token Mocking Then click on " Tokens " button. You will be taken to a page like the below image, Then select role, for demo purpose here we selected role " Administrator User ". Then clic...