Package cloud.google.com/go/vision/apiv1 (v0.87.0)

Version 0.87.0

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Note: To get more information about this package, such as access to older versions, view this package on pkg.go.dev.

Package vision is an auto-generated package for the Cloud Vision API.

Integrates Google Vision features, including image labeling, face, logo, and landmark detection, optical character recognition (OCR), and detection of explicit content, into applications.

Use of Context

The ctx passed to NewClient is used for authentication requests and for creating the underlying connection, but is not used for subsequent calls. Individual methods on the client use the ctx given to them.

To close the open connection, use the Close() method.

For information about setting deadlines, reusing contexts, and more please visit https://pkg.go.dev/cloud.google.com/go.

Functions

func DefaultAuthScopes

func DefaultAuthScopes() []string

DefaultAuthScopes reports the default set of authentication scopes to use with this package.

func NewImageFromReader

func NewImageFromReader(r io.Reader) (*pb.Image, error)

NewImageFromReader reads the bytes of an image from r.

func NewImageFromURI

func NewImageFromURI(uri string) *pb.Image

NewImageFromURI returns an image that refers to an object in Google Cloud Storage (when the uri is of the form "gs://BUCKET/OBJECT") or at a public URL.

AsyncBatchAnnotateFilesOperation

type AsyncBatchAnnotateFilesOperation struct {
	// contains filtered or unexported fields
}

AsyncBatchAnnotateFilesOperation manages a long-running operation from AsyncBatchAnnotateFiles.

func (*AsyncBatchAnnotateFilesOperation) Done

func (op *AsyncBatchAnnotateFilesOperation) Done() bool

Done reports whether the long-running operation has completed.

func (*AsyncBatchAnnotateFilesOperation) Metadata

func (op *AsyncBatchAnnotateFilesOperation) Metadata() (*visionpb.OperationMetadata, error)

Metadata returns metadata associated with the long-running operation. Metadata itself does not contact the server, but Poll does. To get the latest metadata, call this method after a successful call to Poll. If the metadata is not available, the returned metadata and error are both nil.

func (*AsyncBatchAnnotateFilesOperation) Name

func (op *AsyncBatchAnnotateFilesOperation) Name() string

Name returns the name of the long-running operation. The name is assigned by the server and is unique within the service from which the operation is created.

func (*AsyncBatchAnnotateFilesOperation) Poll

func (op *AsyncBatchAnnotateFilesOperation) Poll(ctx context.Context, opts ...gax.CallOption) (*visionpb.AsyncBatchAnnotateFilesResponse, error)

Poll fetches the latest state of the long-running operation.

Poll also fetches the latest metadata, which can be retrieved by Metadata.

If Poll fails, the error is returned and op is unmodified. If Poll succeeds and the operation has completed with failure, the error is returned and op.Done will return true. If Poll succeeds and the operation has completed successfully, op.Done will return true, and the response of the operation is returned. If Poll succeeds and the operation has not completed, the returned response and error are both nil.

func (*AsyncBatchAnnotateFilesOperation) Wait

func (op *AsyncBatchAnnotateFilesOperation) Wait(ctx context.Context, opts ...gax.CallOption) (*visionpb.AsyncBatchAnnotateFilesResponse, error)

Wait blocks until the long-running operation is completed, returning the response and any errors encountered.

See documentation of Poll for error-handling information.

AsyncBatchAnnotateImagesOperation

type AsyncBatchAnnotateImagesOperation struct {
	// contains filtered or unexported fields
}

AsyncBatchAnnotateImagesOperation manages a long-running operation from AsyncBatchAnnotateImages.

func (*AsyncBatchAnnotateImagesOperation) Done

func (op *AsyncBatchAnnotateImagesOperation) Done() bool

Done reports whether the long-running operation has completed.

func (*AsyncBatchAnnotateImagesOperation) Metadata

func (op *AsyncBatchAnnotateImagesOperation) Metadata() (*visionpb.OperationMetadata, error)

Metadata returns metadata associated with the long-running operation. Metadata itself does not contact the server, but Poll does. To get the latest metadata, call this method after a successful call to Poll. If the metadata is not available, the returned metadata and error are both nil.

func (*AsyncBatchAnnotateImagesOperation) Name

func (op *AsyncBatchAnnotateImagesOperation) Name() string

Name returns the name of the long-running operation. The name is assigned by the server and is unique within the service from which the operation is created.

func (*AsyncBatchAnnotateImagesOperation) Poll

func (op *AsyncBatchAnnotateImagesOperation) Poll(ctx context.Context, opts ...gax.CallOption) (*visionpb.AsyncBatchAnnotateImagesResponse, error)

Poll fetches the latest state of the long-running operation.

Poll also fetches the latest metadata, which can be retrieved by Metadata.

If Poll fails, the error is returned and op is unmodified. If Poll succeeds and the operation has completed with failure, the error is returned and op.Done will return true. If Poll succeeds and the operation has completed successfully, op.Done will return true, and the response of the operation is returned. If Poll succeeds and the operation has not completed, the returned response and error are both nil.

func (*AsyncBatchAnnotateImagesOperation) Wait

func (op *AsyncBatchAnnotateImagesOperation) Wait(ctx context.Context, opts ...gax.CallOption) (*visionpb.AsyncBatchAnnotateImagesResponse, error)

Wait blocks until the long-running operation is completed, returning the response and any errors encountered.

See documentation of Poll for error-handling information.

Chin

type Chin struct {
	Left, Center, Right *pb.Position
}

Chin represents a face's chin.

Ears

type Ears struct {
	Left, Right *pb.Position
}

Ears represents a face's ears.

Eye

type Eye struct {
	Left, Right, Top, Bottom, Center, Pupil *pb.Position
}

Eye represents a face's eye.

Eyebrow

type Eyebrow struct {
	Top, Left, Right *pb.Position
}

Eyebrow represents a face's eyebrow.

Eyebrows

type Eyebrows struct {
	Left, Right Eyebrow
}

Eyebrows represents a face's eyebrows.

Eyes

type Eyes struct {
	Left, Right Eye
}

Eyes represents a face's eyes.

FaceLandmarks

type FaceLandmarks struct {
	Eyebrows Eyebrows
	Eyes     Eyes
	Ears     Ears
	Nose     Nose
	Mouth    Mouth
	Chin     Chin
	Forehead *pb.Position
}

FaceLandmarks contains the positions of facial features detected by the service.

func FaceFromLandmarks

func FaceFromLandmarks(landmarks []*pb.FaceAnnotation_Landmark) *FaceLandmarks

FaceFromLandmarks converts the list of face landmarks returned by the service to a FaceLandmarks struct.

ImageAnnotatorCallOptions

type ImageAnnotatorCallOptions struct {
	BatchAnnotateImages      []gax.CallOption
	BatchAnnotateFiles       []gax.CallOption
	AsyncBatchAnnotateImages []gax.CallOption
	AsyncBatchAnnotateFiles  []gax.CallOption
}

ImageAnnotatorCallOptions contains the retry settings for each method of ImageAnnotatorClient.

ImageAnnotatorClient

type ImageAnnotatorClient struct {

	// The call options for this service.
	CallOptions *ImageAnnotatorCallOptions

	// LROClient is used internally to handle long-running operations.
	// It is exposed so that its CallOptions can be modified if required.
	// Users should not Close this client.
	LROClient *lroauto.OperationsClient
	// contains filtered or unexported fields
}

ImageAnnotatorClient is a client for interacting with Cloud Vision API. Methods, except Close, may be called concurrently. However, fields must not be modified concurrently with method calls.

Service that performs Google Cloud Vision API detection tasks over client images, such as face, landmark, logo, label, and text detection. The ImageAnnotator service returns detected entities from the images.

func NewImageAnnotatorClient

func NewImageAnnotatorClient(ctx context.Context, opts ...option.ClientOption) (*ImageAnnotatorClient, error)

NewImageAnnotatorClient creates a new image annotator client based on gRPC. The returned client must be Closed when it is done being used to clean up its underlying connections.

Service that performs Google Cloud Vision API detection tasks over client images, such as face, landmark, logo, label, and text detection. The ImageAnnotator service returns detected entities from the images.

Example

package main

import (
	"context"

	vision "cloud.google.com/go/vision/apiv1"
)

func main() {
	ctx := context.Background()
	c, err := vision.NewImageAnnotatorClient(ctx)
	if err != nil {
		// TODO: Handle error.
	}
	defer c.Close()

	// TODO: Use client.
	_ = c
}

func (*ImageAnnotatorClient) AnnotateImage

func (c *ImageAnnotatorClient) AnnotateImage(ctx context.Context, req *pb.AnnotateImageRequest, opts ...gax.CallOption) (*pb.AnnotateImageResponse, error)

AnnotateImage runs image detection and annotation for a single image.

Example

package main

import (
	"context"

	vision "cloud.google.com/go/vision/apiv1"
	pb "google.golang.org/genproto/googleapis/cloud/vision/v1"
)

func main() {
	ctx := context.Background()
	c, err := vision.NewImageAnnotatorClient(ctx)
	if err != nil {
		// TODO: Handle error.
	}
	res, err := c.AnnotateImage(ctx, &pb.AnnotateImageRequest{
		Image: vision.NewImageFromURI("gs://my-bucket/my-image.png"),
		Features: []*pb.Feature{
			{Type: pb.Feature_LANDMARK_DETECTION, MaxResults: 5},
			{Type: pb.Feature_LABEL_DETECTION, MaxResults: 3},
		},
	})
	if err != nil {
		// TODO: Handle error.
	}
	// TODO: Use res.
	_ = res
}

func (*ImageAnnotatorClient) AsyncBatchAnnotateFiles

func (c *ImageAnnotatorClient) AsyncBatchAnnotateFiles(ctx context.Context, req *visionpb.AsyncBatchAnnotateFilesRequest, opts ...gax.CallOption) (*AsyncBatchAnnotateFilesOperation, error)

AsyncBatchAnnotateFiles run asynchronous image detection and annotation for a list of generic files, such as PDF files, which may contain multiple pages and multiple images per page. Progress and results can be retrieved through the google.longrunning.Operations interface. Operation.metadata contains OperationMetadata (metadata). Operation.response contains AsyncBatchAnnotateFilesResponse (results).

Example

package main

import (
	"context"

	vision "cloud.google.com/go/vision/apiv1"
	visionpb "google.golang.org/genproto/googleapis/cloud/vision/v1"
)

func main() {
	ctx := context.Background()
	c, err := vision.NewImageAnnotatorClient(ctx)
	if err != nil {
		// TODO: Handle error.
	}
	defer c.Close()

	req := &visionpb.AsyncBatchAnnotateFilesRequest{
		// TODO: Fill request struct fields.
	}
	op, err := c.AsyncBatchAnnotateFiles(ctx, req)
	if err != nil {
		// TODO: Handle error.
	}

	resp, err := op.Wait(ctx)
	if err != nil {
		// TODO: Handle error.
	}
	// TODO: Use resp.
	_ = resp
}

func (*ImageAnnotatorClient) AsyncBatchAnnotateFilesOperation

func (c *ImageAnnotatorClient) AsyncBatchAnnotateFilesOperation(name string) *AsyncBatchAnnotateFilesOperation

AsyncBatchAnnotateFilesOperation returns a new AsyncBatchAnnotateFilesOperation from a given name. The name must be that of a previously created AsyncBatchAnnotateFilesOperation, possibly from a different process.

func (*ImageAnnotatorClient) AsyncBatchAnnotateImages

func (c *ImageAnnotatorClient) AsyncBatchAnnotateImages(ctx context.Context, req *visionpb.AsyncBatchAnnotateImagesRequest, opts ...gax.CallOption) (*AsyncBatchAnnotateImagesOperation, error)

AsyncBatchAnnotateImages run asynchronous image detection and annotation for a list of images.

Progress and results can be retrieved through the google.longrunning.Operations interface. Operation.metadata contains OperationMetadata (metadata). Operation.response contains AsyncBatchAnnotateImagesResponse (results).

This service will write image annotation outputs to json files in customer GCS bucket, each json file containing BatchAnnotateImagesResponse proto.

Example

package main

import (
	"context"

	vision "cloud.google.com/go/vision/apiv1"
	visionpb "google.golang.org/genproto/googleapis/cloud/vision/v1"
)

func main() {
	ctx := context.Background()
	c, err := vision.NewImageAnnotatorClient(ctx)
	if err != nil {
		// TODO: Handle error.
	}
	defer c.Close()

	req := &visionpb.AsyncBatchAnnotateImagesRequest{
		// TODO: Fill request struct fields.
	}
	op, err := c.AsyncBatchAnnotateImages(ctx, req)
	if err != nil {
		// TODO: Handle error.
	}

	resp, err := op.Wait(ctx)
	if err != nil {
		// TODO: Handle error.
	}
	// TODO: Use resp.
	_ = resp
}

func (*ImageAnnotatorClient) AsyncBatchAnnotateImagesOperation

func (c *ImageAnnotatorClient) AsyncBatchAnnotateImagesOperation(name string) *AsyncBatchAnnotateImagesOperation

AsyncBatchAnnotateImagesOperation returns a new AsyncBatchAnnotateImagesOperation from a given name. The name must be that of a previously created AsyncBatchAnnotateImagesOperation, possibly from a different process.

func (*ImageAnnotatorClient) BatchAnnotateFiles

func (c *ImageAnnotatorClient) BatchAnnotateFiles(ctx context.Context, req *visionpb.BatchAnnotateFilesRequest, opts ...gax.CallOption) (*visionpb.BatchAnnotateFilesResponse, error)

BatchAnnotateFiles service that performs image detection and annotation for a batch of files. Now only “application/pdf”, “image/tiff” and “image/gif” are supported.

This service will extract at most 5 (customers can specify which 5 in AnnotateFileRequest.pages) frames (gif) or pages (pdf or tiff) from each file provided and perform detection and annotation for each image extracted.

Example

package main

import (
	"context"

	vision "cloud.google.com/go/vision/apiv1"
	visionpb "google.golang.org/genproto/googleapis/cloud/vision/v1"
)

func main() {
	ctx := context.Background()
	c, err := vision.NewImageAnnotatorClient(ctx)
	if err != nil {
		// TODO: Handle error.
	}
	defer c.Close()

	req := &visionpb.BatchAnnotateFilesRequest{
		// TODO: Fill request struct fields.
	}
	resp, err := c.BatchAnnotateFiles(ctx, req)
	if err != nil {
		// TODO: Handle error.
	}
	// TODO: Use resp.
	_ = resp
}

func (*ImageAnnotatorClient) BatchAnnotateImages

func (c *ImageAnnotatorClient) BatchAnnotateImages(ctx context.Context, req *visionpb.BatchAnnotateImagesRequest, opts ...gax.CallOption) (*visionpb.BatchAnnotateImagesResponse, error)

BatchAnnotateImages run image detection and annotation for a batch of images.

Example

package main

import (
	"context"

	vision "cloud.google.com/go/vision/apiv1"
	visionpb "google.golang.org/genproto/googleapis/cloud/vision/v1"
)

func main() {
	ctx := context.Background()
	c, err := vision.NewImageAnnotatorClient(ctx)
	if err != nil {
		// TODO: Handle error.
	}
	defer c.Close()

	req := &visionpb.BatchAnnotateImagesRequest{
		// TODO: Fill request struct fields.
	}
	resp, err := c.BatchAnnotateImages(ctx, req)
	if err != nil {
		// TODO: Handle error.
	}
	// TODO: Use resp.
	_ = resp
}

func (*ImageAnnotatorClient) Close

func (c *ImageAnnotatorClient) Close() error

Close closes the connection to the API service. The user should invoke this when the client is no longer required.

func (*ImageAnnotatorClient) Connection

func (c *ImageAnnotatorClient) Connection() *grpc.ClientConn

Connection returns a connection to the API service.

Deprecated.

func (*ImageAnnotatorClient) CropHints

func (c *ImageAnnotatorClient) CropHints(ctx context.Context, img *pb.Image, ictx *pb.ImageContext, opts ...gax.CallOption) (*pb.CropHintsAnnotation, error)

CropHints computes crop hints for the image.

func (*ImageAnnotatorClient) DetectDocumentText

func (c *ImageAnnotatorClient) DetectDocumentText(ctx context.Context, img *pb.Image, ictx *pb.ImageContext, opts ...gax.CallOption) (*pb.TextAnnotation, error)

DetectDocumentText performs full text (OCR) detection on the image.

func (*ImageAnnotatorClient) DetectFaces

func (c *ImageAnnotatorClient) DetectFaces(ctx context.Context, img *pb.Image, ictx *pb.ImageContext, maxResults int, opts ...gax.CallOption) ([]*pb.FaceAnnotation, error)

DetectFaces performs face detection on the image. At most maxResults results are returned.

func (*ImageAnnotatorClient) DetectImageProperties

func (c *ImageAnnotatorClient) DetectImageProperties(ctx context.Context, img *pb.Image, ictx *pb.ImageContext, opts ...gax.CallOption) (*pb.ImageProperties, error)

DetectImageProperties computes properties of the image.

func (*ImageAnnotatorClient) DetectLabels

func (c *ImageAnnotatorClient) DetectLabels(ctx context.Context, img *pb.Image, ictx *pb.ImageContext, maxResults int, opts ...gax.CallOption) ([]*pb.EntityAnnotation, error)

DetectLabels performs label detection on the image. At most maxResults results are returned.

func (*ImageAnnotatorClient) DetectLandmarks

func (c *ImageAnnotatorClient) DetectLandmarks(ctx context.Context, img *pb.Image, ictx *pb.ImageContext, maxResults int, opts ...gax.CallOption) ([]*pb.EntityAnnotation, error)

DetectLandmarks performs landmark detection on the image. At most maxResults results are returned.

func (*ImageAnnotatorClient) DetectLogos

func (c *ImageAnnotatorClient) DetectLogos(ctx context.Context, img *pb.Image, ictx *pb.ImageContext, maxResults int, opts ...gax.CallOption) ([]*pb.EntityAnnotation, error)

DetectLogos performs logo detection on the image. At most maxResults results are returned.

func (*ImageAnnotatorClient) DetectSafeSearch

func (c *ImageAnnotatorClient) DetectSafeSearch(ctx context.Context, img *pb.Image, ictx *pb.ImageContext, opts ...gax.CallOption) (*pb.SafeSearchAnnotation, error)

DetectSafeSearch performs safe-search detection on the image.

func (*ImageAnnotatorClient) DetectTexts

func (c *ImageAnnotatorClient) DetectTexts(ctx context.Context, img *pb.Image, ictx *pb.ImageContext, maxResults int, opts ...gax.CallOption) ([]*pb.EntityAnnotation, error)

DetectTexts performs text detection on the image. At most maxResults results are returned.

func (*ImageAnnotatorClient) DetectWeb

func (c *ImageAnnotatorClient) DetectWeb(ctx context.Context, img *pb.Image, ictx *pb.ImageContext, opts ...gax.CallOption) (*pb.WebDetection, error)

DetectWeb computes a web annotation on the image.

func (*ImageAnnotatorClient) LocalizeObjects

func (c *ImageAnnotatorClient) LocalizeObjects(ctx context.Context, img *pb.Image, ictx *pb.ImageContext, opts ...gax.CallOption) ([]*pb.LocalizedObjectAnnotation, error)

LocalizeObject runs the localizer for object detection.

func (*ImageAnnotatorClient) ProductSearch

func (c *ImageAnnotatorClient) ProductSearch(ctx context.Context, img *pb.Image, ictx *pb.ImageContext, opts ...gax.CallOption) (*pb.ProductSearchResults, error)

ProductSearch searches the image for products.

ImportProductSetsOperation

type ImportProductSetsOperation struct {
	// contains filtered or unexported fields
}

ImportProductSetsOperation manages a long-running operation from ImportProductSets.

func (*ImportProductSetsOperation) Done

func (op *ImportProductSetsOperation) Done() bool

Done reports whether the long-running operation has completed.

func (*ImportProductSetsOperation) Metadata

func (op *ImportProductSetsOperation) Metadata() (*visionpb.BatchOperationMetadata, error)

Metadata returns metadata associated with the long-running operation. Metadata itself does not contact the server, but Poll does. To get the latest metadata, call this method after a successful call to Poll. If the metadata is not available, the returned metadata and error are both nil.

func (*ImportProductSetsOperation) Name

func (op *ImportProductSetsOperation) Name() string

Name returns the name of the long-running operation. The name is assigned by the server and is unique within the service from which the operation is created.

func (*ImportProductSetsOperation) Poll

func (op *ImportProductSetsOperation) Poll(ctx context.Context, opts ...gax.CallOption) (*visionpb.ImportProductSetsResponse, error)

Poll fetches the latest state of the long-running operation.

Poll also fetches the latest metadata, which can be retrieved by Metadata.

If Poll fails, the error is returned and op is unmodified. If Poll succeeds and the operation has completed with failure, the error is returned and op.Done will return true. If Poll succeeds and the operation has completed successfully, op.Done will return true, and the response of the operation is returned. If Poll succeeds and the operation has not completed, the returned response and error are both nil.

func (*ImportProductSetsOperation) Wait

func (op *ImportProductSetsOperation) Wait(ctx context.Context, opts ...gax.CallOption) (*visionpb.ImportProductSetsResponse, error)

Wait blocks until the long-running operation is completed, returning the response and any errors encountered.

See documentation of Poll for error-handling information.

Mouth

type Mouth struct {
	Left, Center, Right, UpperLip, LowerLip *pb.Position
}

Mouth represents a face's mouth.

Nose

type Nose struct {
	Left, Right, Top, Bottom, Tip *pb.Position
}

Nose represents a face's nose.

ProductIterator

type ProductIterator struct {

	// Response is the raw response for the current page.
	// It must be cast to the RPC response type.
	// Calling Next() or InternalFetch() updates this value.
	Response interface{}

	// InternalFetch is for use by the Google Cloud Libraries only.
	// It is not part of the stable interface of this package.
	//
	// InternalFetch returns results from a single call to the underlying RPC.
	// The number of results is no greater than pageSize.
	// If there are no more results, nextPageToken is empty and err is nil.
	InternalFetch func(pageSize int, pageToken string) (results []*visionpb.Product, nextPageToken string, err error)
	// contains filtered or unexported fields
}

ProductIterator manages a stream of *visionpb.Product.

func (*ProductIterator) Next

func (it *ProductIterator) Next() (*visionpb.Product, error)

Next returns the next result. Its second return value is iterator.Done if there are no more results. Once Next returns Done, all subsequent calls will return Done.

func (*ProductIterator) PageInfo

func (it *ProductIterator) PageInfo() *iterator.PageInfo

PageInfo supports pagination. See the google.golang.org/api/iterator package for details.

ProductSearchCallOptions

type ProductSearchCallOptions struct {
	CreateProductSet            []gax.CallOption
	ListProductSets             []gax.CallOption
	GetProductSet               []gax.CallOption
	UpdateProductSet            []gax.CallOption
	DeleteProductSet            []gax.CallOption
	CreateProduct               []gax.CallOption
	ListProducts                []gax.CallOption
	GetProduct                  []gax.CallOption
	UpdateProduct               []gax.CallOption
	DeleteProduct               []gax.CallOption
	CreateReferenceImage        []gax.CallOption
	DeleteReferenceImage        []gax.CallOption
	ListReferenceImages         []gax.CallOption
	GetReferenceImage           []gax.CallOption
	AddProductToProductSet      []gax.CallOption
	RemoveProductFromProductSet []gax.CallOption
	ListProductsInProductSet    []gax.CallOption
	ImportProductSets           []gax.CallOption
	PurgeProducts               []gax.CallOption
}

ProductSearchCallOptions contains the retry settings for each method of ProductSearchClient.

ProductSearchClient

type ProductSearchClient struct {

	// The call options for this service.
	CallOptions *ProductSearchCallOptions

	// LROClient is used internally to handle long-running operations.
	// It is exposed so that its CallOptions can be modified if required.
	// Users should not Close this client.
	LROClient *lroauto.OperationsClient
	// contains filtered or unexported fields
}

ProductSearchClient is a client for interacting with Cloud Vision API. Methods, except Close, may be called concurrently. However, fields must not be modified concurrently with method calls.

Manages Products and ProductSets of reference images for use in product search. It uses the following resource model:

The API has a collection of ProductSet resources, named projects//locations//productSets/*, which acts as a way to put different products into groups to limit identification.

In parallel,

The API has a collection of Product resources, named projects//locations//products/*

Each Product has a collection of ReferenceImage resources, named projects//locations//products//referenceImages/

func NewProductSearchClient

func NewProductSearchClient(ctx context.Context, opts ...option.ClientOption) (*ProductSearchClient, error)

NewProductSearchClient creates a new product search client based on gRPC. The returned client must be Closed when it is done being used to clean up its underlying connections.

Manages Products and ProductSets of reference images for use in product search. It uses the following resource model:

The API has a collection of ProductSet resources, named projects//locations//productSets/*, which acts as a way to put different products into groups to limit identification.

In parallel,

The API has a collection of Product resources, named projects//locations//products/*

Each Product has a collection of ReferenceImage resources, named projects//locations//products//referenceImages/

Example

package main

import (
	"context"

	vision "cloud.google.com/go/vision/apiv1"
)

func main() {
	ctx := context.Background()
	c, err := vision.NewProductSearchClient(ctx)
	if err != nil {
		// TODO: Handle error.
	}
	defer c.Close()

	// TODO: Use client.
	_ = c
}

func (*ProductSearchClient) AddProductToProductSet

func (c *ProductSearchClient) AddProductToProductSet(ctx context.Context, req *visionpb.AddProductToProductSetRequest, opts ...gax.CallOption) error

AddProductToProductSet adds a Product to the specified ProductSet. If the Product is already present, no change is made.

One Product can be added to at most 100 ProductSets.

Possible errors:

Returns NOT_FOUND if the Product or the ProductSet doesn’t exist.

Example

package main

import (
	"context"

	vision "cloud.google.com/go/vision/apiv1"

	visionpb "google.golang.org/genproto/googleapis/cloud/vision/v1"
)

func main() {
	ctx := context.Background()
	c, err := vision.NewProductSearchClient(ctx)
	if err != nil {
		// TODO: Handle error.
	}
	defer c.Close()

	req := &visionpb.AddProductToProductSetRequest{
		// TODO: Fill request struct fields.
	}
	err = c.AddProductToProductSet(ctx, req)
	if err != nil {
		// TODO: Handle error.
	}
}

func (*ProductSearchClient) Close

func (c *ProductSearchClient) Close() error

Close closes the connection to the API service. The user should invoke this when the client is no longer required.

func (*ProductSearchClient) Connection

func (c *ProductSearchClient) Connection() *grpc.ClientConn

Connection returns a connection to the API service.

Deprecated.

func (*ProductSearchClient) CreateProduct

func (c *ProductSearchClient) CreateProduct(ctx context.Context, req *visionpb.CreateProductRequest, opts ...gax.CallOption) (*visionpb.Product, error)

CreateProduct creates and returns a new product resource.

Possible errors:

Returns INVALID_ARGUMENT if display_name is missing or longer than 4096 characters.

Returns INVALID_ARGUMENT if description is longer than 4096 characters.

Returns INVALID_ARGUMENT if product_category is missing or invalid.

Example

package main

import (
	"context"

	vision "cloud.google.com/go/vision/apiv1"

	visionpb "google.golang.org/genproto/googleapis/cloud/vision/v1"
)

func main() {
	ctx := context.Background()
	c, err := vision.NewProductSearchClient(ctx)
	if err != nil {
		// TODO: Handle error.
	}
	defer c.Close()

	req := &visionpb.CreateProductRequest{
		// TODO: Fill request struct fields.
	}
	resp, err := c.CreateProduct(ctx, req)
	if err != nil {
		// TODO: Handle error.
	}
	// TODO: Use resp.
	_ = resp
}

func (*ProductSearchClient) CreateProductSet

func (c *ProductSearchClient) CreateProductSet(ctx context.Context, req *visionpb.CreateProductSetRequest, opts ...gax.CallOption) (*visionpb.ProductSet, error)

CreateProductSet creates and returns a new ProductSet resource.

Possible errors:

Returns INVALID_ARGUMENT if display_name is missing, or is longer than 4096 characters.

Example

package main

import (
	"context"

	vision "cloud.google.com/go/vision/apiv1"

	visionpb "google.golang.org/genproto/googleapis/cloud/vision/v1"
)

func main() {
	ctx := context.Background()
	c, err := vision.NewProductSearchClient(ctx)
	if err != nil {
		// TODO: Handle error.
	}
	defer c.Close()

	req := &visionpb.CreateProductSetRequest{
		// TODO: Fill request struct fields.
	}
	resp, err := c.CreateProductSet(ctx, req)
	if err != nil {
		// TODO: Handle error.
	}
	// TODO: Use resp.
	_ = resp
}

func (*ProductSearchClient) CreateReferenceImage

func (c *ProductSearchClient) CreateReferenceImage(ctx context.Context, req *visionpb.CreateReferenceImageRequest, opts ...gax.CallOption) (*visionpb.ReferenceImage, error)

CreateReferenceImage creates and returns a new ReferenceImage resource.

The bounding_poly field is optional. If bounding_poly is not specified, the system will try to detect regions of interest in the image that are compatible with the product_category on the parent product. If it is specified, detection is ALWAYS skipped. The system converts polygons into non-rotated rectangles.

Note that the pipeline will resize the image if the image resolution is too large to process (above 50MP).

Possible errors:

Returns INVALID_ARGUMENT if the image_uri is missing or longer than 4096 characters.

Returns INVALID_ARGUMENT if the product does not exist.

Returns INVALID_ARGUMENT if bounding_poly is not provided, and nothing compatible with the parent product’s product_category is detected.

Returns INVALID_ARGUMENT if bounding_poly contains more than 10 polygons.

Example

package main

import (
	"context"

	vision "cloud.google.com/go/vision/apiv1"

	visionpb "google.golang.org/genproto/googleapis/cloud/vision/v1"
)

func main() {
	ctx := context.Background()
	c, err := vision.NewProductSearchClient(ctx)
	if err != nil {
		// TODO: Handle error.
	}
	defer c.Close()

	req := &visionpb.CreateReferenceImageRequest{
		// TODO: Fill request struct fields.
	}
	resp, err := c.CreateReferenceImage(ctx, req)
	if err != nil {
		// TODO: Handle error.
	}
	// TODO: Use resp.
	_ = resp
}

func (*ProductSearchClient) DeleteProduct

func (c *ProductSearchClient) DeleteProduct(ctx context.Context, req *visionpb.DeleteProductRequest, opts ...gax.CallOption) error

DeleteProduct permanently deletes a product and its reference images.

Metadata of the product and all its images will be deleted right away, but search queries against ProductSets containing the product may still work until all related caches are refreshed.

Example

package main

import (
	"context"

	vision "cloud.google.com/go/vision/apiv1"

	visionpb "google.golang.org/genproto/googleapis/cloud/vision/v1"
)

func main() {
	ctx := context.Background()
	c, err := vision.NewProductSearchClient(ctx)
	if err != nil {
		// TODO: Handle error.
	}
	defer c.Close()

	req := &visionpb.DeleteProductRequest{
		// TODO: Fill request struct fields.
	}
	err = c.DeleteProduct(ctx, req)
	if err != nil {
		// TODO: Handle error.
	}
}

func (*ProductSearchClient) DeleteProductSet

func (c *ProductSearchClient) DeleteProductSet(ctx context.Context, req *visionpb.DeleteProductSetRequest, opts ...gax.CallOption) error

DeleteProductSet permanently deletes a ProductSet. Products and ReferenceImages in the ProductSet are not deleted.

The actual image files are not deleted from Google Cloud Storage.

Example

package main

import (
	"context"

	vision "cloud.google.com/go/vision/apiv1"

	visionpb "google.golang.org/genproto/googleapis/cloud/vision/v1"
)

func main() {
	ctx := context.Background()
	c, err := vision.NewProductSearchClient(ctx)
	if err != nil {
		// TODO: Handle error.
	}
	defer c.Close()

	req := &visionpb.DeleteProductSetRequest{
		// TODO: Fill request struct fields.
	}
	err = c.DeleteProductSet(ctx, req)
	if err != nil {
		// TODO: Handle error.
	}
}

func (*ProductSearchClient) DeleteReferenceImage

func (c *ProductSearchClient) DeleteReferenceImage(ctx context.Context, req *visionpb.DeleteReferenceImageRequest, opts ...gax.CallOption) error

DeleteReferenceImage permanently deletes a reference image.

The image metadata will be deleted right away, but search queries against ProductSets containing the image may still work until all related caches are refreshed.

The actual image files are not deleted from Google Cloud Storage.

Example

package main

import (
	"context"

	vision "cloud.google.com/go/vision/apiv1"

	visionpb "google.golang.org/genproto/googleapis/cloud/vision/v1"
)

func main() {
	ctx := context.Background()
	c, err := vision.NewProductSearchClient(ctx)
	if err != nil {
		// TODO: Handle error.
	}
	defer c.Close()

	req := &visionpb.DeleteReferenceImageRequest{
		// TODO: Fill request struct fields.
	}
	err = c.DeleteReferenceImage(ctx, req)
	if err != nil {
		// TODO: Handle error.
	}
}

func (*ProductSearchClient) GetProduct

func (c *ProductSearchClient) GetProduct(ctx context.Context, req *visionpb.GetProductRequest, opts ...gax.CallOption) (*visionpb.Product, error)

GetProduct gets information associated with a Product.

Possible errors:

Returns NOT_FOUND if the Product does not exist.

Example

package main

import (
	"context"

	vision "cloud.google.com/go/vision/apiv1"

	visionpb "google.golang.org/genproto/googleapis/cloud/vision/v1"
)

func main() {
	ctx := context.Background()
	c, err := vision.NewProductSearchClient(ctx)
	if err != nil {
		// TODO: Handle error.
	}
	defer c.Close()

	req := &visionpb.GetProductRequest{
		// TODO: Fill request struct fields.
	}
	resp, err := c.GetProduct(ctx, req)
	if err != nil {
		// TODO: Handle error.
	}
	// TODO: Use resp.
	_ = resp
}

func (*ProductSearchClient) GetProductSet

func (c *ProductSearchClient) GetProductSet(ctx context.Context, req *visionpb.GetProductSetRequest, opts ...gax.CallOption) (*visionpb.ProductSet, error)

GetProductSet gets information associated with a ProductSet.

Possible errors:

Returns NOT_FOUND if the ProductSet does not exist.

Example

package main

import (
	"context"

	vision "cloud.google.com/go/vision/apiv1"

	visionpb "google.golang.org/genproto/googleapis/cloud/vision/v1"
)

func main() {
	ctx := context.Background()
	c, err := vision.NewProductSearchClient(ctx)
	if err != nil {
		// TODO: Handle error.
	}
	defer c.Close()

	req := &visionpb.GetProductSetRequest{
		// TODO: Fill request struct fields.
	}
	resp, err := c.GetProductSet(ctx, req)
	if err != nil {
		// TODO: Handle error.
	}
	// TODO: Use resp.
	_ = resp
}

func (*ProductSearchClient) GetReferenceImage

func (c *ProductSearchClient) GetReferenceImage(ctx context.Context, req *visionpb.GetReferenceImageRequest, opts ...gax.CallOption) (*visionpb.ReferenceImage, error)

GetReferenceImage gets information associated with a ReferenceImage.

Possible errors:

Returns NOT_FOUND if the specified image does not exist.

Example

package main

import (
	"context"

	vision "cloud.google.com/go/vision/apiv1"

	visionpb "google.golang.org/genproto/googleapis/cloud/vision/v1"
)

func main() {
	ctx := context.Background()
	c, err := vision.NewProductSearchClient(ctx)
	if err != nil {
		// TODO: Handle error.
	}
	defer c.Close()

	req := &visionpb.GetReferenceImageRequest{
		// TODO: Fill request struct fields.
	}
	resp, err := c.GetReferenceImage(ctx, req)
	if err != nil {
		// TODO: Handle error.
	}
	// TODO: Use resp.
	_ = resp
}

func (*ProductSearchClient) ImportProductSets

func (c *ProductSearchClient) ImportProductSets(ctx context.Context, req *visionpb.ImportProductSetsRequest, opts ...gax.CallOption) (*ImportProductSetsOperation, error)

ImportProductSets asynchronous API that imports a list of reference images to specified product sets based on a list of image information.

The google.longrunning.Operation API can be used to keep track of the progress and results of the request. Operation.metadata contains BatchOperationMetadata. (progress) Operation.response contains ImportProductSetsResponse. (results)

The input source of this method is a csv file on Google Cloud Storage. For the format of the csv file please see ImportProductSetsGcsSource.csv_file_uri.

Example

package main

import (
	"context"

	vision "cloud.google.com/go/vision/apiv1"

	visionpb "google.golang.org/genproto/googleapis/cloud/vision/v1"
)

func main() {
	ctx := context.Background()
	c, err := vision.NewProductSearchClient(ctx)
	if err != nil {
		// TODO: Handle error.
	}
	defer c.Close()

	req := &visionpb.ImportProductSetsRequest{
		// TODO: Fill request struct fields.
	}
	op, err := c.ImportProductSets(ctx, req)
	if err != nil {
		// TODO: Handle error.
	}

	resp, err := op.Wait(ctx)
	if err != nil {
		// TODO: Handle error.
	}
	// TODO: Use resp.
	_ = resp
}

func (*ProductSearchClient) ImportProductSetsOperation

func (c *ProductSearchClient) ImportProductSetsOperation(name string) *ImportProductSetsOperation

ImportProductSetsOperation returns a new ImportProductSetsOperation from a given name. The name must be that of a previously created ImportProductSetsOperation, possibly from a different process.

func (*ProductSearchClient) ListProductSets

func (c *ProductSearchClient) ListProductSets(ctx context.Context, req *visionpb.ListProductSetsRequest, opts ...gax.CallOption) *ProductSetIterator

ListProductSets lists ProductSets in an unspecified order.

Possible errors:

Returns INVALID_ARGUMENT if page_size is greater than 100, or less than 1.

Example

package main

import (
	"context"

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

	visionpb "google.golang.org/genproto/googleapis/cloud/vision/v1"
)

func main() {
	ctx := context.Background()
	c, err := vision.NewProductSearchClient(ctx)
	if err != nil {
		// TODO: Handle error.
	}
	defer c.Close()

	req := &visionpb.ListProductSetsRequest{
		// TODO: Fill request struct fields.
	}
	it := c.ListProductSets(ctx, req)
	for {
		resp, err := it.Next()
		if err == iterator.Done {
			break
		}
		if err != nil {
			// TODO: Handle error.
		}
		// TODO: Use resp.
		_ = resp
	}
}

func (*ProductSearchClient) ListProducts

func (c *ProductSearchClient) ListProducts(ctx context.Context, req *visionpb.ListProductsRequest, opts ...gax.CallOption) *ProductIterator

ListProducts lists products in an unspecified order.

Possible errors:

Returns INVALID_ARGUMENT if page_size is greater than 100 or less than 1.

Example

package main

import (
	"context"

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

	visionpb "google.golang.org/genproto/googleapis/cloud/vision/v1"
)

func main() {
	ctx := context.Background()
	c, err := vision.NewProductSearchClient(ctx)
	if err != nil {
		// TODO: Handle error.
	}
	defer c.Close()

	req := &visionpb.ListProductsRequest{
		// TODO: Fill request struct fields.
	}
	it := c.ListProducts(ctx, req)
	for {
		resp, err := it.Next()
		if err == iterator.Done {
			break
		}
		if err != nil {
			// TODO: Handle error.
		}
		// TODO: Use resp.
		_ = resp
	}
}

func (*ProductSearchClient) ListProductsInProductSet

func (c *ProductSearchClient) ListProductsInProductSet(ctx context.Context, req *visionpb.ListProductsInProductSetRequest, opts ...gax.CallOption) *ProductIterator

ListProductsInProductSet lists the Products in a ProductSet, in an unspecified order. If the ProductSet does not exist, the products field of the response will be empty.

Possible errors:

Returns INVALID_ARGUMENT if page_size is greater than 100 or less than 1.

Example

package main

import (
	"context"

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

	visionpb "google.golang.org/genproto/googleapis/cloud/vision/v1"
)

func main() {
	ctx := context.Background()
	c, err := vision.NewProductSearchClient(ctx)
	if err != nil {
		// TODO: Handle error.
	}
	defer c.Close()

	req := &visionpb.ListProductsInProductSetRequest{
		// TODO: Fill request struct fields.
	}
	it := c.ListProductsInProductSet(ctx, req)
	for {
		resp, err := it.Next()
		if err == iterator.Done {
			break
		}
		if err != nil {
			// TODO: Handle error.
		}
		// TODO: Use resp.
		_ = resp
	}
}

func (*ProductSearchClient) ListReferenceImages

func (c *ProductSearchClient) ListReferenceImages(ctx context.Context, req *visionpb.ListReferenceImagesRequest, opts ...gax.CallOption) *ReferenceImageIterator

ListReferenceImages lists reference images.

Possible errors:

Returns NOT_FOUND if the parent product does not exist.

Returns INVALID_ARGUMENT if the page_size is greater than 100, or less than 1.

Example

package main

import (
	"context"

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

	visionpb "google.golang.org/genproto/googleapis/cloud/vision/v1"
)

func main() {
	ctx := context.Background()
	c, err := vision.NewProductSearchClient(ctx)
	if err != nil {
		// TODO: Handle error.
	}
	defer c.Close()

	req := &visionpb.ListReferenceImagesRequest{
		// TODO: Fill request struct fields.
	}
	it := c.ListReferenceImages(ctx, req)
	for {
		resp, err := it.Next()
		if err == iterator.Done {
			break
		}
		if err != nil {
			// TODO: Handle error.
		}
		// TODO: Use resp.
		_ = resp
	}
}

func (*ProductSearchClient) PurgeProducts

func (c *ProductSearchClient) PurgeProducts(ctx context.Context, req *visionpb.PurgeProductsRequest, opts ...gax.CallOption) (*PurgeProductsOperation, error)

PurgeProducts asynchronous API to delete all Products in a ProductSet or all Products that are in no ProductSet.

If a Product is a member of the specified ProductSet in addition to other ProductSets, the Product will still be deleted.

It is recommended to not delete the specified ProductSet until after this operation has completed. It is also recommended to not add any of the Products involved in the batch delete to a new ProductSet while this operation is running because those Products may still end up deleted.

It’s not possible to undo the PurgeProducts operation. Therefore, it is recommended to keep the csv files used in ImportProductSets (if that was how you originally built the Product Set) before starting PurgeProducts, in case you need to re-import the data after deletion.

If the plan is to purge all of the Products from a ProductSet and then re-use the empty ProductSet to re-import new Products into the empty ProductSet, you must wait until the PurgeProducts operation has finished for that ProductSet.

The google.longrunning.Operation API can be used to keep track of the progress and results of the request. Operation.metadata contains BatchOperationMetadata. (progress)

Example

package main

import (
	"context"

	vision "cloud.google.com/go/vision/apiv1"

	visionpb "google.golang.org/genproto/googleapis/cloud/vision/v1"
)

func main() {
	ctx := context.Background()
	c, err := vision.NewProductSearchClient(ctx)
	if err != nil {
		// TODO: Handle error.
	}
	defer c.Close()

	req := &visionpb.PurgeProductsRequest{
		// TODO: Fill request struct fields.
	}
	op, err := c.PurgeProducts(ctx, req)
	if err != nil {
		// TODO: Handle error.
	}

	err = op.Wait(ctx)
	if err != nil {
		// TODO: Handle error.
	}
}

func (*ProductSearchClient) PurgeProductsOperation

func (c *ProductSearchClient) PurgeProductsOperation(name string) *PurgeProductsOperation

PurgeProductsOperation returns a new PurgeProductsOperation from a given name. The name must be that of a previously created PurgeProductsOperation, possibly from a different process.

func (*ProductSearchClient) RemoveProductFromProductSet

func (c *ProductSearchClient) RemoveProductFromProductSet(ctx context.Context, req *visionpb.RemoveProductFromProductSetRequest, opts ...gax.CallOption) error

RemoveProductFromProductSet removes a Product from the specified ProductSet.

Example

package main

import (
	"context"

	vision "cloud.google.com/go/vision/apiv1"

	visionpb "google.golang.org/genproto/googleapis/cloud/vision/v1"
)

func main() {
	ctx := context.Background()
	c, err := vision.NewProductSearchClient(ctx)
	if err != nil {
		// TODO: Handle error.
	}
	defer c.Close()

	req := &visionpb.RemoveProductFromProductSetRequest{
		// TODO: Fill request struct fields.
	}
	err = c.RemoveProductFromProductSet(ctx, req)
	if err != nil {
		// TODO: Handle error.
	}
}

func (*ProductSearchClient) UpdateProduct

func (c *ProductSearchClient) UpdateProduct(ctx context.Context, req *visionpb.UpdateProductRequest, opts ...gax.CallOption) (*visionpb.Product, error)

UpdateProduct makes changes to a Product resource. Only the display_name, description, and labels fields can be updated right now.

If labels are updated, the change will not be reflected in queries until the next index time.

Possible errors:

Returns NOT_FOUND if the Product does not exist.

Returns INVALID_ARGUMENT if display_name is present in update_mask but is missing from the request or longer than 4096 characters.

Returns INVALID_ARGUMENT if description is present in update_mask but is longer than 4096 characters.

Returns INVALID_ARGUMENT if product_category is present in update_mask.

Example

package main

import (
	"context"

	vision "cloud.google.com/go/vision/apiv1"

	visionpb "google.golang.org/genproto/googleapis/cloud/vision/v1"
)

func main() {
	ctx := context.Background()
	c, err := vision.NewProductSearchClient(ctx)
	if err != nil {
		// TODO: Handle error.
	}
	defer c.Close()

	req := &visionpb.UpdateProductRequest{
		// TODO: Fill request struct fields.
	}
	resp, err := c.UpdateProduct(ctx, req)
	if err != nil {
		// TODO: Handle error.
	}
	// TODO: Use resp.
	_ = resp
}

func (*ProductSearchClient) UpdateProductSet

func (c *ProductSearchClient) UpdateProductSet(ctx context.Context, req *visionpb.UpdateProductSetRequest, opts ...gax.CallOption) (*visionpb.ProductSet, error)

UpdateProductSet makes changes to a ProductSet resource. Only display_name can be updated currently.

Possible errors:

Returns NOT_FOUND if the ProductSet does not exist.

Returns INVALID_ARGUMENT if display_name is present in update_mask but missing from the request or longer than 4096 characters.

Example

package main

import (
	"context"

	vision "cloud.google.com/go/vision/apiv1"

	visionpb "google.golang.org/genproto/googleapis/cloud/vision/v1"
)

func main() {
	ctx := context.Background()
	c, err := vision.NewProductSearchClient(ctx)
	if err != nil {
		// TODO: Handle error.
	}
	defer c.Close()

	req := &visionpb.UpdateProductSetRequest{
		// TODO: Fill request struct fields.
	}
	resp, err := c.UpdateProductSet(ctx, req)
	if err != nil {
		// TODO: Handle error.
	}
	// TODO: Use resp.
	_ = resp
}

ProductSetIterator

type ProductSetIterator struct {

	// Response is the raw response for the current page.
	// It must be cast to the RPC response type.
	// Calling Next() or InternalFetch() updates this value.
	Response interface{}

	// InternalFetch is for use by the Google Cloud Libraries only.
	// It is not part of the stable interface of this package.
	//
	// InternalFetch returns results from a single call to the underlying RPC.
	// The number of results is no greater than pageSize.
	// If there are no more results, nextPageToken is empty and err is nil.
	InternalFetch func(pageSize int, pageToken string) (results []*visionpb.ProductSet, nextPageToken string, err error)
	// contains filtered or unexported fields
}

ProductSetIterator manages a stream of *visionpb.ProductSet.

func (*ProductSetIterator) Next

func (it *ProductSetIterator) Next() (*visionpb.ProductSet, error)

Next returns the next result. Its second return value is iterator.Done if there are no more results. Once Next returns Done, all subsequent calls will return Done.

func (*ProductSetIterator) PageInfo

func (it *ProductSetIterator) PageInfo() *iterator.PageInfo

PageInfo supports pagination. See the google.golang.org/api/iterator package for details.

PurgeProductsOperation

type PurgeProductsOperation struct {
	// contains filtered or unexported fields
}

PurgeProductsOperation manages a long-running operation from PurgeProducts.

func (*PurgeProductsOperation) Done

func (op *PurgeProductsOperation) Done() bool

Done reports whether the long-running operation has completed.

func (*PurgeProductsOperation) Metadata

func (op *PurgeProductsOperation) Metadata() (*visionpb.BatchOperationMetadata, error)

Metadata returns metadata associated with the long-running operation. Metadata itself does not contact the server, but Poll does. To get the latest metadata, call this method after a successful call to Poll. If the metadata is not available, the returned metadata and error are both nil.

func (*PurgeProductsOperation) Name

func (op *PurgeProductsOperation) Name() string

Name returns the name of the long-running operation. The name is assigned by the server and is unique within the service from which the operation is created.

func (*PurgeProductsOperation) Poll

func (op *PurgeProductsOperation) Poll(ctx context.Context, opts ...gax.CallOption) error

Poll fetches the latest state of the long-running operation.

Poll also fetches the latest metadata, which can be retrieved by Metadata.

If Poll fails, the error is returned and op is unmodified. If Poll succeeds and the operation has completed with failure, the error is returned and op.Done will return true. If Poll succeeds and the operation has completed successfully, op.Done will return true, and the response of the operation is returned. If Poll succeeds and the operation has not completed, the returned response and error are both nil.

func (*PurgeProductsOperation) Wait

func (op *PurgeProductsOperation) Wait(ctx context.Context, opts ...gax.CallOption) error

Wait blocks until the long-running operation is completed, returning the response and any errors encountered.

See documentation of Poll for error-handling information.

ReferenceImageIterator

type ReferenceImageIterator struct {

	// Response is the raw response for the current page.
	// It must be cast to the RPC response type.
	// Calling Next() or InternalFetch() updates this value.
	Response interface{}

	// InternalFetch is for use by the Google Cloud Libraries only.
	// It is not part of the stable interface of this package.
	//
	// InternalFetch returns results from a single call to the underlying RPC.
	// The number of results is no greater than pageSize.
	// If there are no more results, nextPageToken is empty and err is nil.
	InternalFetch func(pageSize int, pageToken string) (results []*visionpb.ReferenceImage, nextPageToken string, err error)
	// contains filtered or unexported fields
}

ReferenceImageIterator manages a stream of *visionpb.ReferenceImage.

func (*ReferenceImageIterator) Next

func (it *ReferenceImageIterator) Next() (*visionpb.ReferenceImage, error)

Next returns the next result. Its second return value is iterator.Done if there are no more results. Once Next returns Done, all subsequent calls will return Done.

func (*ReferenceImageIterator) PageInfo

func (it *ReferenceImageIterator) PageInfo() *iterator.PageInfo

PageInfo supports pagination. See the google.golang.org/api/iterator package for details.