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couchbase

v4.3.1

Published

The official Couchbase Node.js Client Library.

Downloads

63,802

Readme

Couchbase Node.js Client

The Node.js SDK library allows you to connect to a Couchbase cluster from Node.js. It is a native Node.js module and uses the very fast libcouchbase library to handle communicating to the cluster over the Couchbase binary protocol.

Useful Links

Source - https://github.com/couchbase/couchnode

Bug Tracker - https://www.couchbase.com/issues/browse/JSCBC

Couchbase Developer Portal - https://docs.couchbase.com/

Release Notes - https://docs.couchbase.com/nodejs-sdk/3.0/project-docs/sdk-release-notes.html

Installing

To install the lastest release using npm, run:

npm install couchbase

To install the development version directly from github, run:

npm install "git+https://github.com/couchbase/couchnode.git#master"

Introduction

Connecting to a Couchbase bucket is as simple as creating a new Cluster instance to represent the Cluster you are using, and then using the bucket and collection commands against this to open a connection to open your specific bucket and collection. You are able to execute most operations immediately, and they will be queued until the connection is successfully established.

Here is a simple example of instantiating a connection, adding a new document into the bucket and then retrieving its contents:

Javascript:

const couchbase = require('couchbase')

async function main() {
  const cluster = await couchbase.connect(
    'couchbase://127.0.0.1',
    {
      username: 'username',
      password: 'password',
    })

  const bucket = cluster.bucket('default')
  const coll = bucket.defaultCollection()
  await coll.upsert('testdoc', { foo: 'bar' })

  const res = await coll.get('testdoc')
  console.log(res.content)
}

// Run the main function
main()
  .then((_) => {
    console.log ('Success!')
  })
  .catch((err) => {
    console.log('ERR:', err)
  })

Typescript:

import {
  Bucket,
  Cluster,
  Collection,
  connect,
  GetResult,
} from 'couchbase'

async function main() {
  const cluster: Cluster = await connect(
    'couchbase://127.0.0.1',
    {
      username: 'username',
      password: 'password',
    })

  const bucket: Bucket = cluster.bucket('default')
  const coll: Collection = bucket.defaultCollection()
  await coll.upsert('testdoc', { foo: 'bar' })

  const res: GetResult = await coll.get('testdoc')
  console.log(res.content)
}

// Run the main function
main()
  .then((_) => {
    console.log ('Success!')
  })
  .catch((err) => {
    console.log('ERR:', err)
  })

AWS Lambda

Version 4.2.5 of the SDK significantly reduces the size of the prebuilt binary provided with the SDK on supported platforms. The reduction enables the SDK to meet the minimum size requirements for an AWS lambda deployment package without extra steps for reducing the size of the package. However, if further size reduction is desired, the SDK provides a script to provide recommendations for size reduction.

Script:

npm explore couchbase -- npm run help-prune

Example output:

Checking for platform packages in /tmp/couchnode-test/node_modules/@couchbase that do not match the expected platform package (couchbase-linux-x64-openssl1).
Found mismatch: Path=/tmp/couchnode-test/node_modules/@couchbase/couchbase-linuxmusl-x64-openssl1

Recommendations for pruning:

Removing mismatched platform=couchbase-linuxmusl-x64-openssl1 (path=/tmp/couchnode-test/node_modules/@couchbase/couchbase-linuxmusl-x64-openssl1) saves ~13.31 MB on disk.
Removing Couchbase deps/ (path=/tmp/couchnode-test/node_modules/couchbase/deps) saves ~45.51 MB on disk.
Removing Couchbase src/ (path=/tmp/couchnode-test/node_modules/couchbase/src) saves ~0.61 MB on disk.

Documentation

An extensive documentation is available on the Couchbase website - https://docs.couchbase.com/nodejs-sdk/3.0/hello-world/start-using-sdk.html - including numerous examples and code samples.

Visit our Couchbase Node.js SDK forum for help. Or get involved in the Couchbase Community on the Couchbase website.

Source Control

The source code is available at https://github.com/couchbase/couchnode. Once you have cloned the repository, you may contribute changes through our gerrit server. For more details see CONTRIBUTING.md.

To execute our test suite, run make test from the root directory.

To execute our code coverage, run make cover from the root directory.

In addition to the full test suite and full code coverage, you may additionally execute a subset of the tests which excludes slow-running tests for quick verifications. These can be run through make fasttest and make fastcover respectively.

Finally, to build the API reference for the project, run make docs from the root directory, and a docs folder will be created with the api reference.

Support & Additional Resources

If you found an issue, please file it in our JIRA.

The Couchbase Discord server is a place where you can collaborate about all things Couchbase. Connect with others from the community, learn tips and tricks, and ask questions. Join Discord and contribute.

You can ask questions in our forums.

License

Copyright 2013 Couchbase Inc.

Licensed under the Apache License, Version 2.0.

See LICENSE for further details.