GitHub - sparkit1/loopback-next: LoopBack makes it easy to build modern applications that require complex integrations.

LoopBack makes it easy to build modern applications that require complex integrations.

Fast, small, powerful, extensible core
Generate real APIs with a single command
Define your data and endpoints with OpenAPI
No maintenance of generated code

Status: Developer Preview #1

LoopBack 4 is a work in progress, the public API is frequently changed in backwards-incompatible ways. See Upcoming-Releases on wiki for more details.

Installation

Make sure you have the following installed:

Node.js >= 8.0.0
TypeScript >= 2.5.0 npm i -g typescript

Then in your Node.js project root, run:

npm install -S @loopback/core

Make sure you set "target": "es6" in your compiler options in your tsconfig.json if you're using a TypeScript project. See Installation for detailed information.

Example

A basic controller:

export class UserController {
  async getUserByName(username: string): Promise<UserResponse> {
    const users = new UserRepository();
    const user = await users.findOne({where: {username: username}});
    if (!user) {
      throw createHttpError.NotFound(`User ${username} not found.`);
    }
    return new UserResponse(user);
  }
}