apollo-node-rsa
v1.4.15
Published
Node.js Client for Apollo
Maintainers
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apollo-node-client
Node.js Client for Apollo
install
$ npm install apollo-node-client --saveExamples
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获取 xml/yml/yaml/txt 格式 namespace 的配置
const config = await service.getConfig('config.txt');
config.getAllConfig(); // txt config
console.log(config.getProperty('', 'default')); // txt config
console.log(config.getProperty()); // txt config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()}`);
}
}
});API
Class: ConfigService
new ConfigService( options )
options<Object>configServerUrl<string> Apollo 配置服务的地址appId<string> 应用的 appId[clusterName]<string> 集群名[secret]<string> 服务端密钥 access key
- Returns: ConfigService
configService.getAppConfig( [ ip ] )
[ip]<string> 应用部署的机器ipReturns: Promise<PropertiesConfig> 默认的
namespace为application
configService.getConfig( namespaceName, [ ip ] )
namespaceName<string> Namespace的名字,以后缀名判断是什么类型格式的Config。如果没有后缀名,默认为properties,目前支持.json,.properties,.xml,.yml,.yaml,.txt[ip]<string> 应用部署的机器ipReturns: Promise<PropertiesConfig | JSONConfig | PlainConfig>
Class: PropertiesConfig
propertiesConfig.getAllConfig()
- Returns: Map<string, string>
propertiesConfig.getProperty( key, [ defaultValue ] )
key<string> 要获取的配置的key[defaultValue]<string> 默认值,当传入的key不存在时,会返回defaultValueReturns: undefined | string
propertiesConfig.addChangeListener( handle )
handle( changeEvent: ConfigChangeEvent<string> ) => void 监听配置变化事件的回调函数Returns: void
Class: JSONConfig
jsonConfig.getAllConfig()
- Returns: JSONValueType
jsonConfig.getProperty( key, [ defaultValue ] )
key<string> 要获取的配置的key[defaultValue]<string> 默认值,当传入的key不存在时,会返回defaultValueReturns: undefined | JSONValueType
jsonConfig.addChangeListener( handle )
handle( changeEvent: ConfigChangeEvent<JSONValueType> ) => void 监听配置变化事件的回调函数Returns: void
Class: PlainConfig
plainConfig.getAllConfig()
- Returns: string
plainConfig.getProperty( key, [ defaultValue ] )
key<string> 兼容其他类型的 Config,不做校验,传入任意key都会返回整个配置文本内容[defaultValue]<string> 默认值,当配置不存在时,会返回defaultValueReturns: undefined | string
Class: ConfigChangeEvent
configChangeEvent.getNamespace()
- Returns: string
configChangeEvent.changedKeys()
- Returns: string[]
configChangeEvent.getChange()
- Returns: undefined | ConfigChange<T>
Class: ConfigChange<T>
configChange.getNamespace()
- Returns: string
configChange.getPropertyName()
- Returns: string
configChange.getOldValues()
- Returns: undefined | T
configChange.getNewValue()
- Returns: undefined | T
configChange.getChangeType()
- Returns: PropertyChangeType
Enum: PropertyChangeType
propertyChangeType.ADDED
propertyChangeType.MODIFIED
propertyChangeType.DELETED
Contributing
Contributions are always welcome!
