Google Cloud Vision API client for Node.js

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Google Cloud Platform logorelease level npm version
Google Cloud Vision API client for Node.js
A comprehensive list of changes in each version may be found in the CHANGELOG.

Read more about the client libraries for Cloud APIs, including the older Google APIs Client Libraries, in Client Libraries Explainedexplained.
Table of contents:
Before you begin Installing the client library Using the client library


Before you begin

  1. Select or create a Cloud Platform projectprojects.
  2. Enable billing for your projectbilling.
  3. Enable the Google Cloud Vision API APIenableapi.
  4. Set up authentication with a service accountauth so you can access the
API from your local workstation.

Installing the client library

npm install @google-cloud/vision

Using the client library

async function quickstart() {
  // Imports the Google Cloud client library
  const vision = require('@google-cloud/vision');

  // Creates a client
  const client = new vision.ImageAnnotatorClient();

  // Performs label detection on the image file
  const [result] = await client.labelDetection('./resources/wakeupcat.jpg');
  const labels = result.labelAnnotations;
  labels.forEach(label => console.log(label.description));


Samples are in the samples/ directory. Each sample's README.md has instructions for running its sample.
| Sample | Source Code | Try it | | --------------------------- | --------------------------------- | ------ | | Async-batch-annotate-images | source code | !Open in Cloud Shellshellimg | | Batch-annotate-files-gcs | source code | !Open in Cloud Shellshellimg | | Batch-annotate-files | source code | !Open in Cloud Shellshellimg | | Detect | source code | !Open in Cloud Shellshellimg | | Detect.v1p1beta1 | source code | !Open in Cloud Shellshellimg | | Detect.v1p3beta1 | source code | !Open in Cloud Shellshellimg | | Face Detection | source code | !Open in Cloud Shellshellimg | | Cloud Vision Quickstart | source code | !Open in Cloud Shellshellimg | | Cloud Vision Custom API Endpoint | source code | !Open in Cloud Shellshellimg | | Text Detection | source code | !Open in Cloud Shellshellimg | | Cloud Vision Face Detection | source code | !Open in Cloud Shellshellimg |
The Google Cloud Vision API Node.js Client API Referenceclient-docs documentation also contains samples.

Supported Node.js Versions

Our client libraries follow the Node.js release schedule. Libraries are compatible with all current active and maintenance versions of Node.js.
Client libraries targeting some end-of-life versions of Node.js are available, and can be installed via npm dist-tags. The dist-tags follow the naming convention legacy-(version).
Legacy Node.js versions are supported as a best effort:
  • Legacy versions will not be tested in continuous integration.
  • Some security patches may not be able to be backported.
  • Dependencies will not be kept up-to-date, and features will not be backported.

Legacy tags available

  • legacy-8: install client libraries from this dist-tag for versions
compatible with Node.js 8.


This library follows Semantic Versioning.
This library is considered to be General Availability (GA). This means it is stable; the code surface will not change in backwards-incompatible ways unless absolutely necessary (e.g. because of critical security issues) or with an extensive deprecation period. Issues and requests against GA libraries are addressed with the highest priority.
More Information: Google Cloud Platform Launch Stageslaunchstages


Contributions welcome! See the Contributing Guide.
Please note that this README.md, the samples/README.md, and a variety of configuration files in this repository (including .nycrc and tsconfig.json) are generated from a central template. To edit one of these files, make an edit to its templates in directory.


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