Beginner’s Guide to OpenAI ChatGPT API with Java

Swathi Prasad
3 min readApr 8, 2023

ChatGPT is a language model trained by OpenAI which can be used to generate human-like text. ChatGPT can be used to generate responses to questions, code, provide suggestions, or information in a conversational manner.

In this article, we will look at how to use the OpenAI API with Spring Boot to generate images and text with ChatGPT. As a prerequisite, you need to sign up for an API key on the OpenAI website. The API key can be used to send requests to the API.

Let’s create a Spring Boot application and add the following dependency in pom.xml.

<!-- https://mvnrepository.com/artifact/com.theokanning.openai-gpt3-java/service -->
<dependency>
<groupId>com.theokanning.openai-gpt3-java</groupId>
<artifactId>service</artifactId>
<version>0.12.0</version>
</dependency>

This repository provides 3 artifacts:

  • api — request/response POJOs for the GPT APIs.
  • client — a basic client for the GPT endpoints, includes the api module.
  • service — A basic service class that creates and calls the client.

We are using “service” artifact in this article to get easily started with OpenAi API.

Let’s create a simple service class which uses OpenAiService to make API calls…

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Swathi Prasad

Software architect and developer living in Germany. Sharing my opinion and what I learn.