# Monorepo overview

The [loopback-next](https://github.com/strongloop/loopback-next) repository uses
[lerna](https://lernajs.io/) to manage multiple packages for LoopBack 4.

<!-- PLEASE KEEP THE TABLE ROWS SORTED ALPHABETICALLY BY PACKAGE NAME-->

| Package                                                     | npm                              | Description                                                                                                                                                                                                                                                                                      |
| ----------------------------------------------------------- | -------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |
| [authentication](packages/authentication)                   | @loopback/authentication         | A component for authentication support                                                                                                                                                                                                                                                           |
| [boot](packages/boot)                                       | @loopback/boot                   | Convention based Bootstrapper and Booters                                                                                                                                                                                                                                                        |
| [build](packages/build)                                     | @loopback/build                  | A set of common scripts and default configurations to build LoopBack 4 or other TypeScript modules                                                                                                                                                                                               |
| [cli](packages/cli)                                         | @loopback/cli                    | CLI for LoopBack 4                                                                                                                                                                                                                                                                               |
| [context](packages/context)                                 | @loopback/context                | Facilities to manage artifacts and their dependencies in your Node.js applications. The module exposes TypeScript/JavaScript APIs and decorators to register artifacts, declare dependencies, and resolve artifacts by keys. It also serves as an IoC container to support dependency injection. |
| [core](packages/core)                                       | @loopback/core                   | Define and implement core constructs such as Application and Component                                                                                                                                                                                                                           |
| [example-todo](packages/example-todo)                       | _(private)_                      | A basic tutorial for getting started with Loopback 4                                                                                                                                                                                                                                             |
| [example-hello-world](packages/example-hello-world)         | _(private)_                      | A simple hello-world application using LoopBack 4                                                                                                                                                                                                                                                |
| [example-log-extension](packages/example-log-extension)     | _(private)_                      | An example showing how to write a complex log extension for LoopBack 4                                                                                                                                                                                                                           |
| [example-rpc-server](packages/example-rpc-server)           | _(private)_                      | An example RPC server and application to demonstrate the creation of your own custom server                                                                                                                                                                                                      |
| [metadata](packages/metadata)                               | @loopback/metadata               | Utilities to help developers implement TypeScript decorators, define/merge metadata, and inspect metadata                                                                                                                                                                                        |
| [openapi-spec-builder](packages/openapi-spec-builder)       | @loopback/openapi-spec-builder   | Builders to create OpenAPI (Swagger) specification documents in tests                                                                                                                                                                                                                            |
| [openapi-v3](packages/openapi-v3)                           | @loopback/openapi-v3             | Decorators that annotate LoopBack artifacts with OpenAPI v3 metadata and utilities that transform LoopBack metadata to OpenAPI v3 specifications                                                                                                                                                 |
| [openapi-v3-types](packages/openapi-v3-types)               | @loopback/openapi-v3-types       | TypeScript type definitions for OpenAPI Specifications                                                                                                                                                                                                                                           |
| [repository-json-schema](packages/repository-json-schema)   | @loopback/repository-json-schema | Convert a TypeScript class/model to a JSON Schema                                                                                                                                                                                                                                                |
| [repository](packages/repository)                           | @loopback/repository             | Define and implement a common set of interfaces for interacting with databases                                                                                                                                                                                                                   |
| [rest](packages/rest)                                       | @loopback/rest                   | Expose controllers as REST endpoints and route REST API requests to controller methods                                                                                                                                                                                                           |
| [testlab](packages/testlab)                                 | @loopback/testlib                | A collection of test utilities we use to write LoopBack tests                                                                                                                                                                                                                                    |

We use npm scripts declared in [package.json](package.json) to work with the
monorepo managed by lerna. See [Developing LoopBack](./docs/DEVELOPING.md) for
more details.