Spring Boot Application with ChatGPT API using LangChain4J
In this tutorial, we build our first ChatBot using Spring Boot, OpenAI API (ChatPGT), and LangChain4j.
We take a look at how to specify custom system messages to ChatGPT. We explore how to create chat history using LanChain4j. And also try to receive complex Java objects as a response from OpenAI API response.
Link to the source code: https://github.com/caligula95/spring-...
00:00 - Intro
00:25 - Generate empty Spring Boot Project
01:10 - Get familiar with LangChain4J
01:57 - OpenAI API
03:40 - Add dependencies for LangChain4J
04:50 - Create Controller and Service Layer
08:05 - Implement LangChain4J model completion functionality
13:30 - Add SystemMessage and UserMessage
17:50 - Implement Chat Memory
32:20 - Consume generated answer as Java Object
39:55 - Specify custom Descriptions and Restrictions
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