Caching OpenAI Chat API Responses with LangChain and Xata

In this guide, you'll learn how to cache OpenAI Chat API responses in different ways using LangChain and Xata. You’ll learn how to:

• Set up a Xata Database


• Cache LangChain ChatOpenAI Responses using Callbacks


• Cache LangChain ChatOpenAI Responses using Cache Layer

Before you begin

Prerequisites

You'll need the following:

• 
  Node.js 18 or later


• 
  pnpm package manager


• A Xata account


• An OpenAI account

Tech Stack

The following technologies are used in this guide:

Technology
Description




Express.js
Fast, unopinionated, minimalist web framework …

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