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The models involved in the relation must also exist before running this generator.


Creates a new model relation in a LoopBack application.

$ [slc | apic] loopback:relation [options]


-h, --help Print the generator’s options and usage.

--skip-cache Do not remember prompt answers. Default is false.

--skip-install Do not automatically install dependencies. Default is false.

Interactive Prompts

The tool will prompt you for:

  • Custom foreign key (optional)
  • Whether a “through” model is required.  Repy “Y” to create a HasManyThrough relations
  • Name of the “through” model, if appropriate.


Updates the Model definition JSON files for the models involved in the relation.