Model extension file | LoopBack Documentation

The model extension file is a JavaScript file where you can extend a model with JavaScript code.

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The LoopBack model generator creates a model extension file for each model in the application. The file will be either in the server/models or the common/models directory (depending on whether the model is server-only or defined on both server and client). The file is named model-name.js, where model-name is the model name; for example, customer.json. The model JSON file defines models, relations between models, and access to models.

Note: The LoopBack model generator automatically converts camel-case model names (for example MyModel) to lowercase dashed names (my-model). For example, if you create a model named “FooBar” with the model generator, it creates files foo-bar.json and foo-bar.js in common/models. However, the model name (“FooBar”) will be preserved via the model’s name property.

Use the model extension file to extend your model with custom code. For example, you can register a remote method here.

'use strict';                                                                                            

module.exports = function(ModelName) {
  // Add extension code here
};
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