TypeSwagger - A Swagger / OpenApi Spec DSL for Scala

TypeSwagger provides a typesafe Scala DSL to build OpenApi (Swagger) Specifications. It can be used within any Scala project to generate HTTP API documentations.

Example

The following example defines a simple api with two endpoints (GET and DELETE) on one path (/user/{id}). The example contains mandatory information, and also some, but not all optional fields. For better readability, optional fields are calld by value.

import ch.acmesoftware.typeswagger.v3.OpenApi
import ch.acmesoftware.typeswagger.v3.OpenApi._
import ch.acmesoftware.typeswagger.v3.Implicits._

OpenApi.create("ApiDoc", "1.0.0").
  // add global information
  withInfo(license = "MIT", licenseUrl = "https://opensource.org/licenses/MIT").
  // add a tag
  withTag("testtag", "A tag description", externalDocs = doc("http://link.to.doc")).
  // define an api path
  path("/user/{id}", summary = "Path summary") {
    // http GET operation  on the path
    (GET >> op("A summary", "GET operation for this route").
      withParameter("id", PATH, Schema.int, description = "The id...", required = true).
      withParameter("comment", QUERY, Schema.string, description = "Some deprecated comment", 
                    deprecated = true).
      withTag("testtag")) ~
    // http DELETE operation on the path
    (DELETE >> op("Delete operation").
      withParameter("id", PATH, Schema.int, description = "The id...", required = true))
  }.
  // add endpoint server(s)
  withServer("http://localhost:9000/api").
  withServer("https://production.tld/api", Some("Production Server")).
  // build json string
  toJson()

Usage

Install the Ivy depenency via SBT:

"ch.acmesoftware" %% "typeswagger" % "{version}"

Add imports:

import ch.acmesoftware.typeswagger.v3.OpenApi
import ch.acmesoftware.typeswagger.v3.OpenApi._

// syntactic sugar for convenient DSL, but optional
import ch.acmesoftware.typeswagger.v3.Implicits._ 

Info

Add global information using the withInfo function. All parameters are optional. If not using the implicits, use Some("str") as parameter value:

import ch.acmesoftware.typeswagger.v3.OpenApi
import ch.acmesoftware.typeswagger.v3.OpenApi._
import ch.acmesoftware.typeswagger.v3.Implicits._

OpenApi.create("ApiDoc", "1.0.0", description = "API Doc built with TypeSwagger", termsOfService = "/tos").
  withInfo(license = "MIT", licenseUrl = "https://opensource.org/licenses/MIT", 
           contactName = "John Doe", contactEmail = "[email protected]", contactUrl = "https://webpage.tld")

Features

• Convenient, typesafe DSL to define OpenApi v3 specifications
• Integrated JSON rendering
• Integrated YAML rendering (TODO)
• Java API (TODO)
• Integration with common HTTP-Frameworks (TODO)

Contributions

Please use the GitHub issue tracking and PullRequests. Any help is very welcome.

License

This project is licensed under the MIT license. See LICENSE for more information.