opentelemetry-java-instrumentation VS react-redux-realworld-example-app

Java

wget https://github.com/open-telemetry/opentelemetry-java-instrumentation/releases/latest/download/opentelemetry-javaagent.jar

We are actually able to handle the long tail of tracing by leveraging the amazing open source community. For languages like Java we use the automatic instrumentation created by the OpenTelemetry community which is really great and support ton of libraries, you can see a list of supported libraries here: https://github.com/open-telemetry/opentelemetry-java-instrum...

As in Python, it creates spans for every method call and HTTP entry point. It also instruments JDBC calls, but we have a Reactive stack and thus use R2DBC. For the record, a GitHub issue is open for adding support.

Download the latest Java agent ‘JAR’ from the official repo on GitHub and copy the opentelemetry-javaagent-all.jar file to your project.

Java OpenTelemetry MongoDB library for Java applications

Download the latest version of the Java JAR agent, and copy jar agent file in your application code. We have placed the agent under the folder named agents.

OpenTelemetry and Java Flight Recorder (JFR) cover most bases. Use the OpenTelemetry Java agent if you want auto-instrumentation or just the APIs if you want to do your own instrumentation.

Download the latest Java JAR agent.

OpenTelemetry provides three repositories to instrument applications. The opentelemetry-java-instrumentation repo contains the code for auto-instrumentation of Java applications.

You have a working backend, but it is not very interesting without a frontend. Let's go ahead and install a React + Redux frontend that will serve as a UI:

This is the React + Redux frontend project, and for Spring Boot I'm not sure what your prospective company uses to interfact with the Database, but it's normally JPA, therefore this Spring Boot + JPA project is a good start.

Since you mentioned you want Redux: I found this sometime back: https://github.com/gothinkster/react-redux-realworld-example-app

Did you use create react app to build your app? It take a lot of the pain away from learning as there are a lot of sane defaults configured in. If you specify Typescript (an option for create react app) it’s a lot closer to Java than vanilla JS, also helps you write clearer, more typesafe code. Perhaps look at some existing smaller projects using React, there are some good real world examples for a heap of languages on gothinkster including react, but that might be overwhelming with redux as well which is a whole other part of a UI app.

However although their React+Redux example is perhaps the most popular one, it's not currently maintained. Instead, this maintained fork is recommended on their list. It's not in TypeScript, which today's projects should normally use, but I guess it's OK for beginner to study