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@loopback/core

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@loopback/core

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

  • 0.4.2
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@loopback/core

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

Overview

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

Installation

$ npm install --save @loopback/core

Basic Use

@loopback/core provides the foundation for your LoopBack app, but unlike previous versions, it no longer contains the implementation for listening servers.

For a typical example of how to create a REST server with your application, see the @loopback/rest package.

Advanced Use

Since @loopback/core is decoupled from the listening server implementation, LoopBack applications are now able to work with any component that provides this functionality.

// index.ts
import {Application} from '@loopback/core';
import {RestComponent} from '@loopback/rest';
import {GrpcComponent} from '@loopback/grpc';

const app = new Application({
  rest: {
    port: 3000,
  },
  grpc: {
    port: 3001,
  },
});
app.component(RestComponent); // REST Server
app.component(GrpcComponent)(
  // GRPC Server

  async function start() {
    // Let's retrieve the bound instances of our servers.
    const rest = await app.getServer<RestServer>('RestServer');
    const grpc = await app.getServer<GrpcServer>('GrpcServer');

    // Define all sorts of bindings here to pass configuration or data
    // between your server instances, define controllers and datasources for them,
    // etc...
    await app.start(); // This automatically spins up all your servers, too!
    console.log(`REST server running on port: ${rest.getSync('rest.port')}`);
    console.log(`GRPC server running on port: ${grpc.getSync('grpc.port')}`);
  },
)();

In the above example, having a GRPC server mounted on your Application could enable communication with other GRPC-enabled microservices, allowing things like dynamic configuration updates.

Contributions

Tests

Run npm test from the root folder.

Contributors

See all contributors.

License

MIT

FAQs

Package last updated on 04 Apr 2018

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