Awesome

serverless-openapi-plugin

Serverless plugin to generate AWS serverless architecture from openApi definition.

It also generate validation (using Joi) for headers/query/params and body.

On your serverless.yml add:

plugins: 
 -serverless-openapi-plugin

By default the plugin is looking for a definition.yml, but you can override this setting using:

customs: 
 definition: mydefinition.yml

In order to generate handlers, you need to specify the handler name at root or operation level with x-serverless-handler key.

Simple as:

serverless openapi