Set endpoint

Specifies the location of the API endpoint.

Explore further

For detailed documentation that includes this code sample, see the following:

• Detect handwriting in images
• Detect text in files (PDF/TIFF)
• Detect text in images

Code sample

Go

Before trying this sample, follow the Go setup instructions in the Vision quickstart using client libraries. For more information, see the Vision Go API reference documentation.

To authenticate to Vision, set up Application Default Credentials. For more information, see Set up authentication for a local development environment.

import (
	"context"
	"fmt"

	vision "cloud.google.com/go/vision/apiv1"
	"google.golang.org/api/option"
)

// setEndpoint changes your endpoint.
func setEndpoint(endpoint string) error {
	// endpoint := "eu-vision.googleapis.com:443"

	ctx := context.Background()
	client, err := vision.NewImageAnnotatorClient(ctx, option.WithEndpoint(endpoint))
	if err != nil {
		return fmt.Errorf("NewImageAnnotatorClient: %w", err)
	}
	defer client.Close()

	return nil
}

Java

Before trying this sample, follow the Java setup instructions in the Vision quickstart using client libraries. For more information, see the Vision Java API reference documentation.

To authenticate to Vision, set up Application Default Credentials. For more information, see Set up authentication for a local development environment.

ImageAnnotatorSettings settings =
    ImageAnnotatorSettings.newBuilder().setEndpoint("eu-vision.googleapis.com:443").build();

// Initialize client that will be used to send requests. This client only needs to be created
// once, and can be reused for multiple requests. After completing all of your requests, call
// the "close" method on the client to safely clean up any remaining background resources.
ImageAnnotatorClient client = ImageAnnotatorClient.create(settings);

Node.js

Before trying this sample, follow the Node.js setup instructions in the Vision quickstart using client libraries. For more information, see the Vision Node.js API reference documentation.

To authenticate to Vision, set up Application Default Credentials. For more information, see Set up authentication for a local development environment.

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

async function setEndpoint() {
  // Specifies the location of the api endpoint
  const clientOptions = {apiEndpoint: 'eu-vision.googleapis.com'};

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

  // Performs text detection on the image file
  const [result] = await client.textDetection('./resources/wakeupcat.jpg');
  const labels = result.textAnnotations;
  console.log('Text:');
  labels.forEach(label => console.log(label.description));
}
setEndpoint();

Python

Before trying this sample, follow the Python setup instructions in the Vision quickstart using client libraries. For more information, see the Vision Python API reference documentation.

To authenticate to Vision, set up Application Default Credentials. For more information, see Set up authentication for a local development environment.

from google.cloud import vision

client_options = {"api_endpoint": "eu-vision.googleapis.com"}

client = vision.ImageAnnotatorClient(client_options=client_options)

What's next

To search and filter code samples for other Google Cloud products, see the Google Cloud sample browser.