{ "get": { "operationId": "trackShortUrl", "tags": [ "URL Shortener" ], "summary": "Short URL tracking pixel", "description": "Generates a 1px transparent image which can be used to track emails with a short URL", "parameters": [ { "name": "shortCode", "in": "path", "description": "The short code to resolve.", "required": true, "schema": { "type": "string" } } ], "responses": { "200": { "description": "Image in GIF format", "content": { "image/gif": { "schema": { "type": "string", "format": "binary" } } } } } } }