If you're working on a project that involves building an API for an existing website, you'll need an OpenAPI specification to describe the API. An OpenAPI spec is a document describing the endpoints, request and response parameters, authentication requirements, and other API details. It can be a time-consuming task to create an OpenAPI spec from scratch, but there are tools available that can help you generate one quickly and easily.
In this blog post, we'll show you how to generate an OpenAPI spec for an existing website using HTTP Archive (HAR) files, which are recordings of a web browser's interactions with a website.