API Testing with Postman - Importing Existing API Definitions

The video tutorial explains how APIs can be defined using schemas, with a focus on the Open API specification, formerly known as Swagger. It demonstrates how to use a sample Open API spec file, 'pet store.yaml', to define API structure and schema, including endpoints and paths. The tutorial shows how to import this file into Postman, allowing users to easily understand and test the API. The video concludes with a brief mention of the next topic, which will cover API schema validation using TV 4.

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