Express OAS Generator

Automatically generates OpenAPI (Swagger) specifications for Express.js 4.x REST APIs from runtime request/response analysis. Version 1.0.48 provides both Swagger UI and spec endpoints, supports OpenAPI 2 and 3 (default v2), and allows customization via merge objects or callback functions. Releases follow a maintenance cadence with limited recent activity. Key differentiators: no manual annotation required, works with existing routes, supports Mongoose model integration for definitions (requires mongoose, mongoose-to-swagger, bson as peer deps). Full TypeScript definitions included. Note: spec generation is reactive—must exercise endpoints before specs appear.