92 lines
1.7 KiB
Plaintext
92 lines
1.7 KiB
Plaintext
[[update_examples]]
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=== Update
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The update API allows updates of a specific document using the given script. +
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In the following example, we will index a document that also tracks how many times a character has said the given quote, and then we will update the `times` field.
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[source,js]
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---------
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'use strict'
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const { Client } = require('@elastic/elasticsearch')
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const client = new Client({ node: 'http://localhost:9200' })
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async function run () {
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await client.index({
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index: 'game-of-thrones',
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id: '1',
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body: {
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character: 'Ned Stark',
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quote: 'Winter is coming.',
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times: 0
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}
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})
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await client.update({
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index: 'game-of-thrones',
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id: '1',
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body: {
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script: {
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lang: 'painless',
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source: 'ctx._source.times++'
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// you can also use parameters
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// source: 'ctx._source.times += params.count',
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// params: { count: 1 }
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}
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}
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})
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const { body } = await client.get({
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index: 'game-of-thrones',
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id: '1'
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})
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console.log(body)
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}
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run().catch(console.log)
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---------
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With the update API, you can also run a partial update of a document.
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[source,js]
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---------
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'use strict'
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const { Client } = require('@elastic/elasticsearch')
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const client = new Client({ node: 'http://localhost:9200' })
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async function run () {
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await client.index({
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index: 'game-of-thrones',
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id: '1',
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body: {
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character: 'Ned Stark',
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quote: 'Winter is coming.',
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isAlive: true
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}
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})
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await client.update({
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index: 'game-of-thrones',
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id: '1',
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body: {
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doc: {
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isAlive: false
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}
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}
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})
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const { body } = await client.get({
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index: 'game-of-thrones',
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id: '1'
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})
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console.log(body)
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}
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run().catch(console.log)
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--------- |