bootLoopBackApp(app, [options])

Initialize an application from an options object or a set of JSON and JavaScript files.

NOTE: This module is primarily intended for use with LoopBack 2.0. It does work with LoopBack 1.x applications, but none of the LoopBack 1.x examples or generated code (scaffolding) use it.

This function takes an optional argument that is either a string or an object.

If the argument is a string, then it sets the application root directory based on the string value. Then it:

  1. Creates DataSources from the datasources.json file in the application root directory.

  2. Creates Models from the models.json file in the application root directory.

If the argument is an object, then it looks for model, dataSources, and appRootDir properties of the object. If the object has no appRootDir property then it sets the current working directory as the application root directory. Then it:

  1. Creates DataSources from the options.dataSources object.

  2. Creates Models from the options.models object.

In both cases, the function loads JavaScript files in the /models and /boot subdirectories of the application root directory with require().

NOTE: Mixing bootLoopBackApp(app, bootConfig) and app.model(name, modelConfig) in multiple files may result in models being undefined due to race conditions. To avoid this when using bootLoopBackApp() make sure all models are passed as part of the models definition.

Throws an error if the config object is not valid or if boot fails.

Name Type Description

LoopBack application created by loopback().

options String or Object

Boot options; If String, this is the application root directory; if object, has below properties.

Name Type Description
appRootDir String

Directory to use when loading JSON and JavaScript files (optional). Defaults to the current directory (process.cwd()).

models Object

Object containing Model definitions (optional).

dataSources Object

Object containing DataSource definitions (optional).

modelsRootDir String

Directory to use when loading models.json and models/*.js. Defaults to appRootDir.

datasourcesRootDir String

Directory to use when loading datasources.json. Defaults to appRootDir.

env String

Environment type, defaults to process.env.NODE_ENV or development. Common values are development, staging and production; however the applications are free to use any names.

boot.compileToBrowserify(options, bundler)

Compile boot instructions and add them to a browserify bundler.

Name Type Description
options Object or String

as described in bootLoopBackApp above.

bundler Object

A browserify bundler created by browserify().


The browser version of bootLoopBackApp.

When loopback-boot is loaded in browser, the module exports this function instead of bootLoopBackApp.

The function expects the boot instructions to be included in the browser bundle, see boot.compileToBrowserify.

Name Type Description
app Object

The loopback app to boot, as returned by loopback().