Knowledge Factory

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...

Here’s a step-by-step guide for building a Spring Boot CRUD application using Thymeleaf as the template engine, PostgreSQL as the database, and Bootstrap for UI styling. This includes a basic explanation of each component. Project Setup To get started, set up your Spring Boot project. Dependencies : Spring Web Spring Data JPA PostgreSQL Driver Thymeleaf Spring Boot DevTools (optional for live reload) Lombok (optional for boilerplate reduction) You can create this setup via Spring Initializr : https://start.spring.io/ Project Structure src / main /java └── com .example .demo ├── controller ├── model ├── repository ├── service └── DemoApplication .java src / main /resources └── templates └── (Thymeleaf templates) └── static └── (CSS, JS, Bootstrap) └── application .properties Steps 1. Configure PostgreSQL In application.properties : spring .datasource .url =jdbc:postgresql: //localhost:5432/your_database_name spring .datasource .username =your_username...

In this section, we will create a Todo CRUD app with Spring Boot , htmx , Thymeleaf ,  Bootstrap , and PostgreSQL . About htmx HTMX can be used for the API/server-side calls directly in the HTML. More Info:  click here We can use HTMX to create interactive templates in our Spring Boot application. We can dynamically call and fetch data from the server by using simple HTML attributes like hx-get, hx-put, etc. We'll cover those in this article. We will be exploring the basis of HTMX by creating a basic CRUD application. Technologies Used Java 17 Spring Boot 3.3.0 Spring Data JPA PostgreSQL Thymeleaf  htmx Bootstrap Creating a spring boot application First, open the Spring initializr  https://start.spring.io Then, Provide the Group and Artifact name. We have provided Group name  com.knf.dev.demo  and Artifact  spring-boot-htmx-crud . Here I selected the Maven project - language  Java 17  -  Spring Boot 3.3.0 ,   Spring Web, Spring Data...