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Technologies / Programming

API Design with Swagger and OpenAPI Specification

This training focuses on practical use of OpenAPI specification and Swagger tools for designing, documenting, and managing programming interfaces. Participants will learn API documentation creation standards, learn to design RESTful APIs according to best practices, and use tools supporting the entire interface development process. The program includes practical workshops on creating interactive documentation and generating code based on OpenAPI specification.

Required Participant Preparation

  • Basic knowledge of HTTP protocol and RESTful API methods
  • Ability to read and write in JSON and YAML formats
  • Experience working with programming interfaces (as developer or user)
  • Knowledge of basic software architecture concepts
  • Experience working with developer tools and programming environments

Benefits

  • After completing the training, you will gain the ability to create professional API documentation compliant with industry standards
  • To design RESTful APIs using OpenAPI specification and effectively model data using JSON Schema
  • You will master practical application of Swagger Editor and Swagger UI tools for creating interactive interface documentation
  • You will be able to implement security and authorization mechanisms in API documentation
  • Knowledge about automatic client and server code generation based on OpenAPI specification
  • To manage API versions and maintain documentation in large programming projects
  • Best practices for documenting errors and HTTP response codes

Who is this training for?

Backend and fullstack programmers working with REST API
Software architects designing distributed systems
DevOps and system integration engineers
Technical writers responsible for technical documentation
Product owners and business analysts managing API products
QA testers automating programming interface tests
Development teams working in microservice architecture
IT consultants implementing integration solutions

Training program

01

Introduction to OpenAPI specification

  • History and evolution of API documentation standards (Swagger to OpenAPI)
  • Key elements of OpenAPI specification
  • Relationship with JSON Schema
  • Best practices in designing RESTful APIs compliant with specification
02

Practical application of Swagger and OpenAPI tools

  • Installation and configuration of Swagger Editor and Swagger UI (online and locally)
  • Creating and editing documentation in YAML / JSON format
  • Using SwaggerHub and other tools supporting OpenAPI
  • Specification validation - linters, testers, version conversion
  • Generating interactive documentation and endpoint exploration
03

Designing endpoints and data models

  • Defining paths, HTTP methods and operations
  • Data modeling using full JSON Schema syntax
  • Handling query parameters, headers, cookies and request bodies
  • Defining examples (examples vs example), oneOf, anyOf, allOf
  • Authorization and authentication handling (Bearer, OAuth2, API Keys, OpenID Connect)
04

Advanced API documentation aspects

  • API versioning and endpoint deprecation (deprecated)
  • Implementing security mechanisms and scopes
  • Documenting responses, errors and HTTP codes
  • Versioning and maintaining large specifications (components, external files)
  • Generating client and server code from OpenAPI (SwaggerCodegen, OpenAPI Generator)

Delivery Methods

Online

  • Convenience of participating from anywhere
  • Interactive live sessions with trainer
  • Materials available for 30 days
  • No travel costs

On-site

  • Direct contact with trainer and group
  • Intensive hands-on workshops
  • Networking with other participants
  • Full focus on learning

Frequently asked questions

Who is the API Design with Swagger and OpenAPI Specification training for?

This training is designed for professionals looking to develop skills in api design with swagger and openapi specification. Required level: intermediate.

How long is the API Design with Swagger and OpenAPI Specification training?

The training lasts 2. Available in online or on-site format.

Will I receive a certificate?

Yes — every participant receives a completion certificate confirming acquired competencies. EITT holds ISO 9001 accreditation.

Can this training be conducted for a closed group?

Yes — we offer dedicated closed trainings for companies. We customize the program to your team's needs. Contact us for an individual quote.

Adrian Kwiatkowski
Adrian Kwiatkowski Opiekun szkolenia

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Funding Options

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Up to 80%

Development Services Database

Up to 80% funding for SMEs from EU funds

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Up to 100%

National Training Fund

Up to 100% funding for employers

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We train teams at Poland's largest companies

ING Bank - EITT client
mBank - EITT client
PKO Bank Polski - EITT client
PZU - EITT client
Allianz - EITT client
T-Mobile - EITT client
KGHM - EITT client
PGE - EITT client
IKEA - EITT client
InPost - EITT client
Leroy Merlin - EITT client
ZUS - EITT client

Interested in this training?

Contact us - we'll prepare an offer tailored to your organization's needs.

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