开始

安装 npm i @letscollab/midway-nacos

导入

import * as nacos from '@letscollab/midway-nacos';
@Configuration({
  imports: [nacos],
  importConfigs: [resolve(__dirname, './config')],
})
export class AutoConfiguration implements ILifeCycle {}

配置

详情见 https://github.com/nacos-group/nacos-sdk-nodejs/blob/master/packages/nacos-config/src/interface.ts#L247

interface CustomConfig {
  nacosConfig: NacosConfigClientOptions;
  nacosNaming: NacosNamingClientOptions;
}

export default (appInfo: MidwayAppInfo): MidwayConfig & CustomConfig => {
  return {
    midwayLogger: {
      default: {
        level: 'none',
        consoleLevel: 'all', //development环境下推荐开启
      },
    },
    nacosConfig: {
      namespace: 'development',
      serverAddr: '0.0.0.0:13324',
    },
    nacosNaming: {
      namespace: 'development',
      serverList: '0.0.0.0:13324',
    },
  };
};

配置中心

@Provide()
export class Demo1Service {
  @Inject()
  nacosConfigService: NacosConfigService;

  async foo() {
    const configs = await this.nacosConfigService.getConfig('demo.json');
  }
}

// Or

@Provide()
export class Demo2Service {
  @NacosConfig('service.json')
  configs1: { a: { b: string } };

  @NacosConfig('service.json', 'a.b')
  configs2: string;

  // 自定义数据parser
  @NacosConfig('service.yaml', YAML.parse)
  configs3: { a: { b: string } };

  async foo() {
    console.log(await this.configs1);
  }
}

数据传输默认使用 json, 更换如下

import YAML from 'yaml';

{
  nacosConfig: {
    dataParser(data){
      return  YAML.parse(data);
    }
  }
}

//Or
this.nacosService.setDataParser(YAML.parse).getConfig('xxx')

//Or
@NacosConfig('xxx', YAML.parse)

服务发现

描述注册一个实例到服务。

@Configuration({
  imports: [express, nacos],
  importConfigs: [resolve(__dirname, './config')],
})
export class AutoConfiguration implements ILifeCycle {
  @Inject()
  nacosNamingService: NacosNamingService;

  async onReady(
    container: IMidwayContainer,
    mainApp?: IMidwayBaseApplication<Context>,
  ): Promise<void> {
    await this.nacosNamingService.registerInstance('service-name', {
      port: 8080,
      ip: '0.0.0.0',
    });
  }
}

其他参考请 https://www.npmjs.com/package/nacos