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

Add this to your package’s pubspec.yaml file:

dependencies:
  pip_services4_elasticsearch: version

Now you can install the package from the command line:

pub get

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.

class MyComponent implements IConfigurable, IReferenceable {
  CompositeLogger _logger = new CompositeLogger();
  
  configure(ConfigParams config) {
    this._logger.configure(config);
  }
  
  setReferences(IReferences refs) {
    this._logger.setReferences(refs);
  }
  
  myMethod(String correlationId, param1) {
    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}}
...