deerawan

client.delete({
  index: 'student',
  type: '_doc',
  id: '1'  
})
.then(res => console.log(JSON.stringify(res)))
.catch(err => console.error(err));

deerawan

client.search({
  index: 'student',
  type: '_doc',  
  body: {
    query: {
      match: { name: 'John' }
    }
  }
})
.then(res => console.log(JSON.stringify(res)))

deerawan

client.update({
  index: 'student',
  type: '_doc',
  id: '1',
  body: {
    doc: {
      hobby: 'swimming'
    }
  }
})

deerawan

client.index({
  index: 'student',
  type: '_doc',
  id: 1,  
  body: {
    name: 'C. Ronaldo',
    age: 33,
    hobby: 'football'
  }
})

deerawan

client.search({
  index: 'student',
  type: '_doc',  
})
.then(res => console.log(JSON.stringify(res)))
.catch(err => console.error(err));

deerawan

client.index({
  index: 'student',
  type: '_doc',
  body: {
    name: 'John Doe',
    age: 17,
    hobby: 'basketball'
  }
})
.catch(err => console.error(err));

deerawan

const es = require('elasticsearch');
const client = es.Client({ host: 'http://localhost:9200' });

client.ping()
  .then(res => console.log('connection success', res))
  .catch(err => console.error('wrong connection', err));

deerawan

---
version: "3"
services:
  elasticsearch:
    image: docker.elastic.co/elasticsearch/elasticsearch:6.2.4
    environment:
      - cluster.name=docker-cluster
      - bootstrap.memory_lock=true
      - "ES_JAVA_OPTS=-Xms512m -Xmx512m"
    ulimits:

deerawan

FROM node:6.11.1

# Copy package.json and package-lock.json
COPY package.json .
COPY package-lock.json .

RUN npm install --quiet

COPY . .

deerawan

var scores = [1, 2, 3, 4];

function multiplyTwo(score) {
  return score * 2;
}

var result = scores.map(multiplyTwo);