A parser is a program or library in Java that reads a file (JSON, XML, txt, etc.) and translates it to Java objects. We’ll look at how to utilize Swagger Parser to extract data from a JSON file throughout this article.

About Swagger JSON File

Before starting the implementation part, let’s have some basic understanding of the Swagger JSON file. It is a specification file that describes the REST APIs in accordance with the Swagger specification. The file describes details such as available endpoints, operations on each endpoint, input and output parameters for each operation, authentication methods (if present), and other information.

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