API Documentation (Swagger/OpenAPI)

Summary

The OpenAPI specification (formerly Swagger) describes your API's endpoints, parameters and responses in a machine-readable format, powering interactive docs and client generation.

How to Learn This

1Write an OpenAPI spec for a few endpoints of an API you've built.
2Use Swagger UI to generate interactive, testable docs from your spec.
3Learn how tools can auto-generate a typed API client from an OpenAPI spec.

gRPC Basics

Postman

More topics in API Design

REST API Best Practices API Versioning Pagination Filtering & Sorting HATEOAS GraphQL Basics GraphQL Schema & Resolvers gRPC Basics Postman Webhooks Rate Limiting Strategies

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