ElasticSearch module

Contains packages used to create Elasticsearch components, including logging components with data storage on the Elasticsearch server.

Packages

The module contains the following packages:

Build - contains a factory for the construction of components
Log - Logging components

Use

Install the Node.js package as

npm install pip-services4-elasticsearch-node --save

Microservice components shall perform logging usual way using CompositeLogger component. The CompositeLogger will get ElasticSearchLogger from references and will redirect log messages there among other destinations.

import { ConfigParams } from 'pip-services3-commons-nodex'; 
import { IConfigurable } from 'pip-services3-commons-nodex'; 
import { IReferences } from 'pip-services3-commons-nodex'; 
import { IReferenceable } from 'pip-services3-commons-nodex'; 
import { CompositeLogger } from 'pip-services3-components-nodex'; 

export class MyComponent implements IConfigurable, IReferenceable {
  private _logger: CompositeLogger = new CompositeLogger();
  
  public configure(config: ConfigParams): void {
    this._logger.configure(config);
  }
  
  public setReferences(refs: IReferences): void {
    this._logger.setReferences(refs);
  }
  
  public async myMethod(correlationId: string, param1: any): Promise<any> {
    this._logger.trace(correlationId, "Executed method mycomponent.mymethod");
    ....
  }
}

Configuration for your microservice that includes ElasticSearch logger may look the following way.

...
{{#if ELASTICSEARCH_ENABLED}}
- descriptor: pip-services:logger:elasticsearch:default:1.0
  connection:
    uri: {{{ELASTICSEARCG_SERVICE_URI}}}
    host: {{{ELASTICSEARCH_SERVICE_HOST}}}{{#unless ELASTICSEARCH_SERVICE_HOST}}localhost{{/unless}}
    port: {{ELASTICSEARCG_SERVICE_PORT}}{{#unless ELASTICSEARCH_SERVICE_PORT}}9200{{/unless}}\ 
{{/if}}
...