Try this swagger 2.0 file (use http://studio.restlet.com to upgrade to version 1.2):
{ "swagger": "2.0", "info": { "version": "0.0.1", "title": "Todo App" }, "host": "localhost:3000", "schemes": [ "http" ], "paths": { "/resources/api": { "post": { "parameters": [ { "name": "key", "in": "query", "description": "key", "required": true, "type": "string" } ], "responses": { "200": { "description": "Successful response" } } } } } }
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