go-swagger is a toolkit for working with Swagger/OpenAPI 2.0 specifications in Go. It generates server, client, and CLI code from a specification document, and can also produce a specification by scanning annotated Go source code. The project includes a static validation engine that checks documents against the schema and project-specific rules, and a specification transformation pipeline that resolves, flattens, and merges documents.
The toolkit generates both client and server code from the same specification, ensuring consistency in request and response handling. It also produces a command-line tool that maps each API operation to a subcommand, and hosts an interactive documentation server using Swagger UI or ReDoc. Code generation is customizable through user-supplied templates and vendor extensions.
Beyond code generation, the project validates specifications, compares documents for breaking changes, and merges multiple spec files into one. It can generate Markdown documentation and random test data from a specification. The toolkit is distributed as pre-compiled binaries for multiple platforms through GitHub releases and package managers.