apollo-node-client

Node.js Client for Apollo

Usage no npm install needed!

<script type="module">
  import apolloNodeClient from 'https://cdn.skypack.dev/apollo-node-client';
</script>

README

apollo-node-client

Node.js Client for Apollo

install

$ npm install apollo-node-client --save

Examples

examples

Usage

实例化 ConfigService

const { ConfigService } = require('apollo-node-client');

const service = new ConfigService({
  configServerUrl: 'http://localhost:8080/',
  appId: 'SampleApp',
  clusterName: 'default',
  secret: 'cf86d564d10a46d4a5989dfdeed3a3a2'
});

获取默认 namespace 的配置(application

const config = await service.getAppConfig();
config.getAllConfig();                                          // Map(1) { 'mysql.user' => 'root' }
console.log(config.getProperty('mysql.user'));                  // root
console.log(config.getProperty('mysql.missing'), 'default');    // default

获取 properties 格式 namespace 的配置

const config = await service.getConfig('application');
config.getAllConfig();                                          // Map(1) { 'mysql.user' => 'root' }
console.log(config.getProperty('mysql.user'));                  // root
console.log(config.getProperty('mysql.missing'), 'default');    // default

获取 json 格式 namespace 的配置

const config = await service.getConfig('config.json');
config.getAllConfig();                                          // { mysql: { user: 'root' } }
console.log(config.getProperty('mysql.user'));                  // root
console.log(config.getProperty('mysql.missing'), 'default');    // default

指定灰度发布的服务 ip

const config = await service.getConfig('application', '192.168.3.4');
config.getAllConfig();                                          // Map(1) { 'mysql.user' => 'root' }
console.log(config.getProperty('mysql.user'));                  // root
console.log(config.getProperty('mysql.missing'), 'default');    // default

监听配置变化事件

config.addChangeListener((changeEvent) => {
  for (const key of changeEvent.changedKeys()) {
    const change = changeEvent.getChange(key);
    if (change) {
      console.log(`namespace: ${change.getNamespace()},
        changeType: ${change.getChangeType()},
        propertyName: ${change.getPropertyName()},
        oldValue: ${change.getOldValue()},
        newValue: ${change.getNewValue()}`);
    }
  }
});