How to generate PDF report from MySQL database in Spring Boot

I am going to show yo how to download PDF file from MySQL database using Spring Boot and iText library in Java programming language. Many applications require dynamic generation of PDF documents for reporting purpose, such as, generating statements for customers, readers buying online specific chapters of a book, etc. In my another tutorial I had shown how to create or write to a PDF file using Java based iText library. The iText library is freely available and can be used using maven or gradle build tool. We can also…

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How to generate Excel Report from MySQL Database in Spring Boot

Here I am going to show you how to download excel file from MySQL using Spring framework. Generating excel report from MySQL database has few advantages over other file formats. Most of the people you are working with in your organization are familiar with excel file format, hence it needs a short learning curve. You may also like to read how to download json file in Spring Boot. The excel file has other benefits as given below: It allows you to use templates and formulas to aggregate data. It has…

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Docker Compose – Dockerizing Nodejs MySQL REST API CRUD Example

Introduction In this tutorial I am going to explain you how to use docker compose to dockerize your Nodejs MySQL REST API for CRUD operations. I am not going to tell you here how to build the REST CRUD application but you can always go back and check the detail tutorial on this here. I am only going to show you how to dockerize your app using docker compose in Linux environment. It is a best practice for a container to have only one process with single responsibility. But as…

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NodeJS Express MySQL REST API CRUD Example

Here I am going to show you how to create REST API CRUD example using Nodejs Express and MySQL server. CRUD means Create, Read, Update and Delete operations which are performed through REST (Representational State Transfer) resources that works on http/https protocol. REST resources or APIs work on verbs, such as, GET, POST, PUT, DELETE, etc. So it is obvious that GET means you need to fetch data from the server endpoint, POST means you need to create the new resource on server endpoint, PUT means you need to update…

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Docker Compose – Dockerizing Spring Boot Microservices MySQL App

Introduction Here I am going to show you how to use docker compose for dockerizing Spring Boot Microservices MySQL app. Docker Compose is a tool for defining and running multi-container Docker applications. With Compose, you use a YAML file to configure your application’s services. Then, with a single command, you create and start all the services from your configuration. You know that it is a best practice for a container to have only one process with single responsibility. But as I am going to dockerize Spring Boot Microservices app and MySQL…

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Docker Compose – Dockerizing Flask MySQL App

Introduction It is considered to be a best practice for a container to have only one process with single responsibility. But as I am going to dockerize Python based Flask web app and MySQL server for storing data for the app, so I need two containers – one for running the app and another one for running the MySQL database server. So these two containers are running independently and to establish communication between these two containers you need docker compose. I am also going to show you how to install…

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How to Trace Microservices Logs with Spring Cloud Sleuth and Zipkin

Introduction Here I am going to explain how to trace Spring Boot Microservices logs with Spring Cloud Sleuth and Zipkin Server. Spring Cloud Sleuth provides Spring Boot auto-configuration for distributed tracing. One of the problems most developers face difficulty of tracing logs as your microservices applications grow and requests propagate from one microservice to another microservice. So it could be quite part to try to figure out how a particular request travels through the application when you don’t have any idea regarding the implementation of microservices you are calling.

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How to Create, Build, Package and Run Python Flask Application with Docker

Introduction In this tutorial I am going to show you how to create a simple Python Flask REST API in Linux based CentOS 7 system. Then I am going to show you how to build, package and run this Python Flask application with Docker. Here I am creating an endpoint that returns Hello, World! in JSON format. In my other tutorial I had discussed how to install docker on CentOS 7. I am not going to tell you here why do you need docker but you can read it from my previous…

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Create, Build, Package and Run Spring Boot Application with Docker in CentOS 7

Introduction Here in this tutorial I am going to show you how to create a simple Spring Boot application. Then how to build, package and run this Spring Boot application with Docker in Linux environment (CentOS). I am going to use both gradle and maven as build tools for running build on this Spring Boot application. In my previous tutorial I had discussed how to install docker on CentOS 7. I am not going to tell you here why do you need docker but you can read it from my…

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