hemerajs / hemera-elasticsearch

Use Elasticsearch with Hemera

Hemera-elasticsearch package

This is a plugin to use Elasticsearch with Hemera. This plugin based on the official driver elasticsearch.

Start elasticsearch via docker

docker run -p 9200:9200 -p 9300:9300 -e "discovery.type=single-node" docker.elastic.co/elasticsearch/elasticsearch:6.2.3

Install

npm i hemera-elasticsearch --save

Usage

const hemera = new Hemera(nats)
hemera.use(equire('hemera-joi'))
hemera.use(require('hemera-elasticsearch'), {
  elasticsearch: {
    log: 'trace'
  }
})

Plugin decorators

• .elasticsearch

Interface

• Elasticsearch API

  • search
  • exists
  • create
  • delete
  • update
  • count
  • bulk
  • refresh

---

search

The pattern is:

• topic: is the service name to publish to elasticsearch
• cmd: is the command to execute search
• data: options see elasticsearch documentation

Example:

hemera.act(
  {
    topic: 'elasticsearch',
    cmd: 'search',
    data: {}
  },
  function(err, resp) {}
)

---

exists

The pattern is:

• topic: is the service name to publish to elasticsearch
• cmd: is the command to execute exists
• data: options see elasticsearch documentation

Example:

hemera.act(
  {
    topic: 'elasticsearch',
    cmd: 'exists',
    data: {
      index: 'my-index',
      type: 'my-type',
      id: 'jieu99'
    }
  },
  function(err, resp) {}
)

---

create

The pattern is:

• topic: is the service name to publish to elasticsearch
• cmd: is the command to execute create
• data: options see elasticsearch documentation

Example:

hemera.act(
  {
    topic: 'elasticsearch',
    cmd: 'create',
    data: {}
  },
  function(err, resp) {}
)

---

delete

The pattern is:

• topic: is the service name to publish to elasticsearch
• cmd: is the command to execute delete
• data: options see elasticsearch documentation

Example:

hemera.act(
  {
    topic: 'elasticsearch',
    cmd: 'delete',
    data: {}
  },
  function(err, resp) {}
)

---

update

The pattern is:

• topic: is the service name to publish to elasticsearch
• cmd: is the command to execute update
• data: options see elasticsearch documentation

Example:

hemera.act(
  {
    topic: 'elasticsearch',
    cmd: 'update',
    data: {}
  },
  function(err, resp) {}
)

---

count

The pattern is:

• topic: is the service name to publish to elasticsearch
• cmd: is the command to execute count
• data: options see elasticsearch documentation

Example:

hemera.act(
  {
    topic: 'elasticsearch',
    cmd: 'count',
    data: {}
  },
  function(err, resp) {}
)

---

bulk

The pattern is:

• topic: is the service name to publish to elasticsearch
• cmd: is the command to execute bulk
• data: options see elasticsearch documentation

Example:

hemera.act(
  {
    topic: 'elasticsearch',
    cmd: 'bulk',
    data: {}
  },
  function(err, resp) {}
)

---

refresh

The pattern is:

• topic: is the service name to publish to elasticsearch
• cmd: is the command to execute refresh
• data: options see elasticsearch documentation

Example:

hemera.act(
  {
    topic: 'elasticsearch',
    cmd: 'refresh',
    data: {}
  },
  function(err, resp) {}
)