RPC

To avoid developing controllers and restful APIs, summer provides a RPC module let service methods can be called between micro-services.

PRC Decorators

Decorators	Usage
@RpcProvider	Rpc Provider
@RpcClient	Rpc Client

Provider

src/default.config.ts

export const RPC_CONFIG: RpcConfig = {
  provider: {
    accessKey: 'xxxxx'
  }
}

import { RpcProvider } from '@summer-js/summer'

@RpcProvider
export class UserRpcService {
  getUser(id: number) {
    return { id, name: 'John' }
  }
  getUsers() {
    return [
      { id: 1, name: 'John' },
      { id: 2, name: 'Tom' }
    ]
  }
}

Client

src/default.config.ts

export const RPC_CONFIG: RpcConfig = {
  client: {
    RPC_SOURCE: {
      url: 'https://api.example.com',
      accessKey: 'xxxxx'
    }
  }
}

import { RpcClient } from '@summer-js/summer'

class User {
  id: number
  name: string
}

@RpcClient('RPC_SOURCE')
export class UserRpcService {
  getUser: (id: number) => Promise<User>
  getUsers: () => Promise<User[]>
}

tip

Both server/client class names should be same.
The return type must be a Promise type for the client.

// If the client cannot define a same name class, the second param for @RpcClient can setup server class name
@RpcClient('RPC_SOURCE','UserRpcService')
export class UserRpcClient {
  getUser: (id: number) => Promise<User>
  getUsers: () => Promise<User[]>
}