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echo-swagger

echo middleware to automatically generate RESTful API documentation with Swagger 2.0.

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Usage

Start using it

  1. Add comments to your API source code, See Declarative Comments Format.
  2. Download Swag for Go by using:
$ go get -d github.com/swaggo/swag/cmd/swag

# 1.16 or newer
$ go install github.com/swaggo/swag/cmd/swag@latest
  1. Run the Swag in your Go project root folder which contains main.go file, Swag will parse comments and generate required files(docs folder and docs/doc.go).
$ swag init
  1. Download echo-swagger by using:
$ go get -u github.com/swaggo/echo-swagger

And import following in your code:

import "github.com/swaggo/echo-swagger" // echo-swagger middleware

Canonical example:

package main

import (
	"github.com/labstack/echo/v4"
	"github.com/swaggo/echo-swagger"

	_ "github.com/swaggo/echo-swagger/example/docs" // docs is generated by Swag CLI, you have to import it.
)

// @title Swagger Example API
// @version 1.0
// @description This is a sample server Petstore server.
// @termsOfService http://swagger.io/terms/

// @contact.name API Support
// @contact.url http://www.swagger.io/support
// @contact.email support@swagger.io

// @license.name Apache 2.0
// @license.url http://www.apache.org/licenses/LICENSE-2.0.html

// @host petstore.swagger.io
// @BasePath /v2
func main() {
	e := echo.New()

	e.GET("/swagger/*", echoSwagger.WrapHandler)

	e.Logger.Fatal(e.Start(":1323"))
}

  1. Run it, and browser to http://localhost:1323/swagger/index.html, you can see Swagger 2.0 Api documents.

swagger_index.html

Note: If you are using Gzip middleware you should add the swagger endpoint to skipper

Example

e.Use(middleware.GzipWithConfig(middleware.GzipConfig{
		Skipper: func(c echo.Context) bool {
			if strings.Contains(c.Request().URL.Path, "swagger") {
				return true
			}
			return false
		},
	}))