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OpenAPI: Beginner to Guru

via Udemy


Master OpenAPI (formerly Swagger) to Create Specifications for Your APIs

What you'll learn:
  • Learn to define APIs using OpenAPI Specifications
  • Create awesome API Documentation with Swagger UI
  • Edit OpenAPI Specifications in Swagger Hub

OpenAPI3.0 is the leading tool for the documentation of APIs.

Formerly known as Swagger, OpenAPIhas a long and established history. In 2010, Swagger started as an open source specification for designing and documenting RESTful APIs.

In 2015, the Swagger project was acquired by SmartBear Software. The Swagger Specification was donated to the Linux foundation and renamed the OpenAPI.

The OpenAPIspecification is the cornerstone of a thriving open source community. Simply perform a search for OpenAPItools and you will find projects for converters, documentation, validators, editors, mock servers, testing tools and much much more!

From the OpenAPIspecification, you can generate client side source code for over 50 languages. You can generate server side code for over 40 different languages.

All of these open source contributes start with the OpenAPIspecification, which we explore in depth in this course.

You start off the course with learning about what is an API, a review of the HTTPprotocol and how it is used in respect to RESTFul APIs.

Then we start looking at OpenAPIand how it applies to documenting RESTFul APIs.

We then start writing an OpenAPIspecification using Swagger Hub.

Swagger Hub is a free, easy to use on-line editor for Swagger and OpenAPIspecifications.

You will get to create a complete OpenAPIspecification for a RESTful web service.

Step by step, you learn how to:

  • Edit a OpenAPIspecification in Swagger Hub

  • Define a OpenAPIspecification in YAML

  • Add developer information

  • Add server information

  • Define an APIpath

  • Define an APIoperation

  • Create robust objects with JSONschema constraints

  • Improve the quality of your specification with re-useable components.

  • Define query parameters

  • Define path parameters

  • Define GET, PUT, POST, and DELETEoperations

  • Create APIsecurity schemes

  • Generate source code with OpenAPICode Gen

  • Use ReDoc to generate robust API documentation

  • Use Apache Maven to generate code with OpenAPI Code Gen

This course has numerous assignments and hands on examples to get you comfortable writing OpenAPIspecifications.

Course Extra - Access to a Private Slack Community

You're not just enrolling in a course --> You are joining a community learning about using OpenAPI.

With your enrollment to the course, you can access an exclusive Slack community. Get help from the instructor and other gurus from around the world - in real time! This community is only available to students enrolled in this course.

This is a veryactive Slack community with almost 500 Gurus!

With your enrollment, you can join this community of awesome gurus!

Closed Captioning / Subtitles

Closed captioning in englishis available for all course videos!


All keynote presentations are available for you to download as PDFs.

Lifetime Access

When you purchase this course, you will receive lifetime access! You can login anytime from anywhere to access the course content.

No Risk - Money Back Guarantee

You can buy this course with no risk. If you are unhappy with the course, for any reason, you can get a complete refund. The course has a 30 day Money Back Guarantee.

Enroll today and see how easy it is to use OpenAPIfor your RESTFul APIs!

Taught by

John Thompson • 385,000+ Enrollments Worldwide


4.5 rating at Udemy based on 2491 ratings

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