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Google Cloud Vision API: Node.js Client

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Google Cloud Vision API client for Node.js

Read more about the client libraries for Cloud APIs, including the older Google APIs Client Libraries, in Client Libraries Explained.

Table of contents:


Before you begin

  1. Select or create a Cloud Platform project.
  2. Enable billing for your project.
  3. Enable the Google Cloud Vision API API.
  4. Set up authentication with a service account 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. The samples' has instructions for running the samples.

Sample Source Code Try it
Detect source code Open in Cloud Shell
Detect.v1p1beta1 source code Open in Cloud Shell
Detect.v1p3beta1 source code Open in Cloud Shell
Face Detection source code Open in Cloud Shell
Quickstart source code Open in Cloud Shell
Text Detection source code Open in Cloud Shell

The Google Cloud Vision API Node.js Client API Reference documentation also contains samples.


This library follows Semantic Versioning.

This library is considered to be in beta. This means it is expected to be mostly stable while we work toward a general availability release; however, complete stability is not guaranteed. We will address issues and requests against beta libraries with a high priority.

More Information: Google Cloud Platform Launch Stages


Contributions welcome! See the Contributing Guide.


Apache Version 2.0