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Working with Spring boot and GraphQL
When creating applications, REST is an often used technology to transfer data through APIs. While REST is commonly adopted, there are some issues with it. In this tutorial, I’ll show you how GraphQL...
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Using Apollo GraphQL with Angular
Last time, we wrote a GraphQL API using Spring boot and the graphql-java library. Today, we’ll write a simple frontend application using Angular. As mentioned in my previous article, there are few...
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Writing GraphQL mutations with Spring boot
A few weeks ago, we created a beautiful API using GraphQL. We only had one problem… the application was completely read-only and no updates were allowed. This time, we’re about to change this, and...
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Setting up Apache Solr with Tika using Docker
When indexing documents, Apache Solr is a possible solution. Combined with Apache Tika, you can also use Solr to index various types of documents, such as PDFs, Word documents, HTML files, … . In this...
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Indexing documents with Spring batch
Batch processing of information is a common thing to do when developing applications. Spring has its own framework to handle batch processing, called Spring batch. In this tutorial, I’ll use Spring...
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Validating the input of your REST API with Spring
When handling input of a user, validation is a common task. In fact, it’s so common, that there’s even a specification for it called JSR 303 bean validation and JSR-380 which contains version 2 of the...
View ArticleRunning a Spring batch at a schedule
Last time, I wrote a Spring batch application to index local markdown files into Apache Solr. While the default configuration of Spring batch is great, I don’t want to re-run the application to...
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Working with Spring Data Solr repositories
Spring Data is the go-to framework when trying to get access to a database within a Spring application. Next to relational databases it also provides support for a wide variety of noSQL databases,...
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Writing a GraphQL API with Node.js, Express and Apollo
A while back, I wrote a tutorial about creating a GraphQL API using Java, followed by a web application using Angular and Apollo. Back then, I also mentioned that Apollo has a server-side part as well,...
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Using custom scalar types with GraphQL and Apollo
Last time, we created a GraphQL API with Node.js, Express, Mongoose and Apollo. However, one of the fields we tried to use was the createdAt date. Since GraphQL doesn’t come with a date-based scalar...
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Getting started with Vue and AT UI
Vue.js gained quite some popularity over the past few years. As a JavaScript framework, it positions itself next to React, Angular and a few other libraries to provide a component-based application...
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Routing with Vue
In the previous tutorial, I made a very simple Vue application. However, the goal of the Q&A application that I’m trying to write is to have multiple pages within our application. To be able to get...
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Using Apollo GraphQL with Vue
Last time, I wrote a simple Vue application using dummy data in our components. Today, we’re going to link it to the Apollo GraphQL API that I wrote earlier. As said before, Apollo has both a...
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Generating documentation for your REST API with Spring and Swagger
A while ago, I used Springfox to include Swagger into our Spring projects. This allows us to use the Swagger UI tester to obtain some live documentation and testing for our REST APIs. However,...
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Generating documentation for your REST API with Spring REST Docs
Last time, we automatically generated documentation for our REST APIs written with Spring using Swagger annotations, Springfox and AsciiDoc. This allowed us to list all possible operations, models and...
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Progressive Web Apps with Angular CLI
One of the buzzwords of Google nowadays is Progressive Web Apps or shortly PWA’s. In this tutorial we’ll learn what progressive webapps exactly are. Additionally we’ll see how we can use them and how...
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Testing your Node.js application with AVA
A while ago, I wrote a simple GraphQL API using Node.js, Express.js, Apollo and Mongoose. While the API probably works, we didn’t really invest any time to write some unit tests for it. That’s going to...
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Testing your Node.js application with tape
Last time, I tested a simple Node.js application I wrote with AVA. While my initial experience with AVA was great, it’s probably still worth it to compare it with other testing frameworks. Another...
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Using Jest to test your Node.js application
After checking out AVA and tape, it’s time to check out Jest. Jest is a testing framework developed by Facebook, and is often used to test React applications. However, it isn’t limited to just React,...
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Using WebSockets with Spring boot
A few years ago, I wrote an article about using WebSockets with Spring and AngularJS. However, the technologies have evolved over the years. That’s why I decided to write some up-to-date follow-up...
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