go-OAS Docs converts structured OAS3 (Swagger3) objects into the Open API Specification & automatically serves it on chosen route and port. It's extremely flexible and simple, so basically it can be integrated into any framework or existing project.

1. Download docs by using:

   $ go get -u github.com/go-oas/docs

2. Add one line annotation to the handler you wish to use in the following format: // @OAS <FUNC_NAME> <ROUTE> <HTTP_METHOD> Examples:

   // @OAS handleCreateUser /users POST // @OAS handleGetUser /users GET 

3. Declare all required documentation elements that are shared. Or reuse ones that already exist in the examples directory.
4. Declare specific docs elements per route.

For more explicit example, please refer to docs/examples

Add OAS TAG to your existing handler that handles fetching of a User:

package users import "net/http" // @OAS handleGetUser /users GET func (s *service) handleGetUser() http.HandlerFunc { return func(w http.ResponseWriter, r *http.Request) {	} }

Create a unique API documentation function for that endpoint:

package main import "github.com/go-oas/docs" func handleGetUserRoute(oasPathIndex int, oas *docs.OAS) { path := oas.GetPathByIndex(oasPathIndex) path.Summary = "Get a User" path.OperationID = "getUser" path.RequestBody = docs.RequestBody{} path.Responses = docs.Responses{ getResponseOK(),	} path.Tags = append(path.Tags, "pet") }

Bear in mind that creating a unique function per endpoint handler is not required, but simply provides good value in usability of shared documentation elements.

Once you created the function, simply register it for parsing by using AttachRoutes() defined upon OAS structure. E.g.:

package main import ( "github.com/go-oas/docs" ) func main() { apiDoc := docs.New() apiDoc.AttachRoutes([]interface{}{ handleGetUserRoute,	})

If this approach is too flexible for you, you are always left with the possibility to create your own attacher - or any other parts of the system for that matter.

To run examples, and checkout hosted documentation via Swagger UI, issue the following command:

$ go run ./examples/*.go

And navigate to http://localhost:3005/docs/api/ in case that you didn't change anything before running the example above.

Check out the current Project board for more information about the first alpha release. Note: Board & project are still in its early phase.

You can join projects Telegram group at: https://t.me/go_oas