98 lines
2.6 KiB
Plaintext
98 lines
2.6 KiB
Plaintext
[[installation]]
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== Installation
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This page guides you through the installation process of the client.
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To install the latest version of the client, run the following command:
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[source,sh]
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----
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npm install @elastic/elasticsearch
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----
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To install a specific major version of the client, run the following command:
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[source,sh]
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----
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npm install @elastic/elasticsearch@<major>
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----
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To learn more about the supported major versions, please refer to the
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<<js-compatibility-matrix>>.
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[discrete]
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[[nodejs-support]]
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=== Node.js support
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NOTE: The minimum supported version of Node.js is `v10`.
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The client versioning follows the {stack} versioning, this means that
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major, minor, and patch releases are done following a precise schedule that
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often does not coincide with the https://nodejs.org/en/about/releases/[Node.js release] times.
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To avoid support insecure and unsupported versions of Node.js, the
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client *will drop the support of EOL versions of Node.js between minor releases*.
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Typically, as soon as a Node.js version goes into EOL, the client will continue
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to support that version for at least another minor release. If you are using the client
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with a version of Node.js that will be unsupported soon, you will see a warning
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in your logs (the client will start logging the warning with two minors in advance).
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Unless you are *always* using a supported version of Node.js,
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we recommend defining the client dependency in your
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`package.json` with the `~` instead of `^`. In this way, you will lock the
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dependency on the minor release and not the major. (for example, `~7.10.0` instead
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of `^7.10.0`).
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[%header,cols=3*]
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|===
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|Node.js Version
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|Node.js EOL date
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|End of support
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|`8.x`
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|December 2019
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|`7.11` (early 2021)
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|`10.x`
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|April 2021
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|`7.12` (mid 2021)
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|===
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[discrete]
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[[js-compatibility-matrix]]
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=== Compatibility matrix
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Elastic language clients are guaranteed to be able to communicate with Elasticsearch
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or Elastic solutions running on the same major version and greater or equal minor version.
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Language clients are forward compatible; meaning that clients support communicating
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with greater minor versions of Elasticsearch. Elastic language clients are not
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guaranteed to be backwards compatible.
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[%header,cols=2*]
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|===
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|{es} Version
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|Client Version
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|`master`
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|`master`
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|`7.x`
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|`7.x`
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|`6.x`
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|`6.x`
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|`5.x`
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|`5.x`
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|===
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[discrete]
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==== Browser
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WARNING: There is no official support for the browser environment. It exposes
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your {es} instance to everyone, which could lead to security issues. We
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recommend you to write a lightweight proxy that uses this client instead,
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you can see a proxy example https://github.com/elastic/elasticsearch-js/tree/master/docs/examples/proxy[here].
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