Lb3 Lb4 Command Mappings - Loopback Next

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LB3 Commands	LB4 Commands	Description
`lb` or `lb app`	`lb4` or `lb4 app`	Create a new application
`lb datasource`	`lb4 datasource`	Create a new datasource
`lb model`	`lb4 model`	Create a new model. In LB3, this would create the model, but you would automatically get all the model methods and remote methods. In LB4, this command only creates the model; you must also create a repository to handle the CRUD operations of your model, and you must create a controller to define your model's REST API endpoints. Alternatively, you can use `lb4 rest-crud` to create a configuration file that allows you to avoid having to create a repository and controller.
`lb relation`	`lb4 relation`	Create a relation between two models
`lb swagger`	`lb4 openapi`	In LB3, create a fully functioning application using an API defined in the Swagger 2.0 specification. In LB4, create a fully functioning application using an API defined in either the Swagger 2.0 or the OpenAPI 3.0 specification.