Google Cloud Vision API. Golang . How to get API JSON
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1
down vote
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I use Google Cloud Vision API with the Go SDK.
In some cases I don't want to use Golang structures to read API results, I just want to get full JSON response of an API call. For example,
// detectDocumentText gets the full document text from the Vision API for an
// image at the given file path.
func detectDocumentTextURI(w io.Writer, file string) error {
ctx := context.Background()
client, err := vision.NewImageAnnotatorClient(ctx)
if err != nil {
return err
}
image := vision.NewImageFromURI(file)
annotation, err := client.DetectDocumentText(ctx, image, nil)
if err != nil {
return err
}
if annotation == nil {
fmt.Fprintln(w, "No text found.")
} else {
fmt.Fprintf(w, "API Response %s", ...JSON...)
}
return nil
}
How can I get that JSON from annotation structure? Is it possible?
go google-cloud-vision edited Nov 12 at 14:30
Tyler Bui-Palsulich
5318
asked Nov 12 at 10:03
Roman Gelembjuk
6752732
add a comment |
up vote
1
down vote
favorite
I use Google Cloud Vision API with the Go SDK.
In some cases I don't want to use Golang structures to read API results, I just want to get full JSON response of an API call. For example,
// detectDocumentText gets the full document text from the Vision API for an
// image at the given file path.
func detectDocumentTextURI(w io.Writer, file string) error {
ctx := context.Background()
client, err := vision.NewImageAnnotatorClient(ctx)
if err != nil {
return err
}
image := vision.NewImageFromURI(file)
annotation, err := client.DetectDocumentText(ctx, image, nil)
if err != nil {
return err
}
if annotation == nil {
fmt.Fprintln(w, "No text found.")
} else {
fmt.Fprintf(w, "API Response %s", ...JSON...)
}
return nil
}
How can I get that JSON from annotation structure? Is it possible?
go google-cloud-vision edited Nov 12 at 14:30
Tyler Bui-Palsulich
5318
asked Nov 12 at 10:03
Roman Gelembjuk
6752732
add a comment |
up vote
1
down vote
favorite
up vote
1
down vote
favorite
I use Google Cloud Vision API with the Go SDK.
In some cases I don't want to use Golang structures to read API results, I just want to get full JSON response of an API call. For example,
// detectDocumentText gets the full document text from the Vision API for an
// image at the given file path.
func detectDocumentTextURI(w io.Writer, file string) error {
ctx := context.Background()
client, err := vision.NewImageAnnotatorClient(ctx)
if err != nil {
return err
}
image := vision.NewImageFromURI(file)
annotation, err := client.DetectDocumentText(ctx, image, nil)
if err != nil {
return err
}
if annotation == nil {
fmt.Fprintln(w, "No text found.")
} else {
fmt.Fprintf(w, "API Response %s", ...JSON...)
}
return nil
}
How can I get that JSON from annotation structure? Is it possible?
go google-cloud-vision edited Nov 12 at 14:30
Tyler Bui-Palsulich
5318
asked Nov 12 at 10:03
Roman Gelembjuk
6752732
I use Google Cloud Vision API with the Go SDK.
In some cases I don't want to use Golang structures to read API results, I just want to get full JSON response of an API call. For example,
// detectDocumentText gets the full document text from the Vision API for an
// image at the given file path.
func detectDocumentTextURI(w io.Writer, file string) error {
ctx := context.Background()
client, err := vision.NewImageAnnotatorClient(ctx)
if err != nil {
return err
}
image := vision.NewImageFromURI(file)
annotation, err := client.DetectDocumentText(ctx, image, nil)
if err != nil {
return err
}
if annotation == nil {
fmt.Fprintln(w, "No text found.")
} else {
fmt.Fprintf(w, "API Response %s", ...JSON...)
}
return nil
}
How can I get that JSON from annotation structure? Is it possible?
go google-cloud-vision go google-cloud-vision edited Nov 12 at 14:30
Tyler Bui-Palsulich
5318
asked Nov 12 at 10:03
Roman Gelembjuk
6752732
edited Nov 12 at 14:30
Tyler Bui-Palsulich
5318
asked Nov 12 at 10:03
Roman Gelembjuk
6752732
edited Nov 12 at 14:30
Tyler Bui-Palsulich
5318
edited Nov 12 at 14:30
Tyler Bui-Palsulich
5318
edited Nov 12 at 14:30
Tyler Bui-Palsulich
5318
5318
asked Nov 12 at 10:03
Roman Gelembjuk
6752732
asked Nov 12 at 10:03
Roman Gelembjuk
6752732
asked Nov 12 at 10:03
Roman Gelembjuk
6752732
6752732
add a comment |
add a comment |
1 Answer
1
active
oldest
votes
up vote
0
down vote
Is there something in particular you're looking for in the JSON? You could pretty-print the response object as JSON, if you trying to explore what's returned:
json, err := json.MarshalIndent(annotation, "", " ")
if err != nil {
log.Fatal(err)
}
fmt.Println(string(json))
It's a bit difficult to get the raw JSON response from this call because under the hood it's using gRPC, not JSON. If you follow the client code for a bit (it's open source), you'll eventually get to https://github.com/GoogleCloudPlatform/google-cloud-go/blob/master/vision/apiv1/image_annotator_client.go#L142:
func (c *ImageAnnotatorClient) BatchAnnotateImages(ctx context.Context, req *visionpb.BatchAnnotateImagesRequest, opts ...gax.CallOption) (*visionpb.BatchAnnotateImagesResponse, error)
You can see that function build up the request, send it, and return the response (the same proto response you get from calling the original function, restricted to res.FullTextAnnotation). See https://github.com/GoogleCloudPlatform/google-cloud-go/blob/master/vision/apiv1/client.go#L109.
answered Nov 12 at 13:40
Tyler Bui-Palsulich
5318
Thanks. If there is gRPC used it is not possible to get JSON than . I have to make a JSON manually.
– Roman Gelembjuk
Nov 13 at 7:45
Yes. I updated my answer with a snippet to pretty print JSON for the annotation response.
– Tyler Bui-Palsulich
Nov 13 at 15:06
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
up vote
0
down vote
Is there something in particular you're looking for in the JSON? You could pretty-print the response object as JSON, if you trying to explore what's returned:
json, err := json.MarshalIndent(annotation, "", " ")
if err != nil {
log.Fatal(err)
}
fmt.Println(string(json))
It's a bit difficult to get the raw JSON response from this call because under the hood it's using gRPC, not JSON. If you follow the client code for a bit (it's open source), you'll eventually get to https://github.com/GoogleCloudPlatform/google-cloud-go/blob/master/vision/apiv1/image_annotator_client.go#L142:
func (c *ImageAnnotatorClient) BatchAnnotateImages(ctx context.Context, req *visionpb.BatchAnnotateImagesRequest, opts ...gax.CallOption) (*visionpb.BatchAnnotateImagesResponse, error)
You can see that function build up the request, send it, and return the response (the same proto response you get from calling the original function, restricted to res.FullTextAnnotation). See https://github.com/GoogleCloudPlatform/google-cloud-go/blob/master/vision/apiv1/client.go#L109.
answered Nov 12 at 13:40
Tyler Bui-Palsulich
5318
Thanks. If there is gRPC used it is not possible to get JSON than . I have to make a JSON manually.
– Roman Gelembjuk
Nov 13 at 7:45
Yes. I updated my answer with a snippet to pretty print JSON for the annotation response.
– Tyler Bui-Palsulich
Nov 13 at 15:06
add a comment |
up vote
0
down vote
Is there something in particular you're looking for in the JSON? You could pretty-print the response object as JSON, if you trying to explore what's returned:
json, err := json.MarshalIndent(annotation, "", " ")
if err != nil {
log.Fatal(err)
}
fmt.Println(string(json))
It's a bit difficult to get the raw JSON response from this call because under the hood it's using gRPC, not JSON. If you follow the client code for a bit (it's open source), you'll eventually get to https://github.com/GoogleCloudPlatform/google-cloud-go/blob/master/vision/apiv1/image_annotator_client.go#L142:
func (c *ImageAnnotatorClient) BatchAnnotateImages(ctx context.Context, req *visionpb.BatchAnnotateImagesRequest, opts ...gax.CallOption) (*visionpb.BatchAnnotateImagesResponse, error)
You can see that function build up the request, send it, and return the response (the same proto response you get from calling the original function, restricted to res.FullTextAnnotation). See https://github.com/GoogleCloudPlatform/google-cloud-go/blob/master/vision/apiv1/client.go#L109.
answered Nov 12 at 13:40
Tyler Bui-Palsulich
5318
Thanks. If there is gRPC used it is not possible to get JSON than . I have to make a JSON manually.
– Roman Gelembjuk
Nov 13 at 7:45
Yes. I updated my answer with a snippet to pretty print JSON for the annotation response.
– Tyler Bui-Palsulich
Nov 13 at 15:06
add a comment |
up vote
0
down vote
up vote
0
down vote
Is there something in particular you're looking for in the JSON? You could pretty-print the response object as JSON, if you trying to explore what's returned:
json, err := json.MarshalIndent(annotation, "", " ")
if err != nil {
log.Fatal(err)
}
fmt.Println(string(json))
It's a bit difficult to get the raw JSON response from this call because under the hood it's using gRPC, not JSON. If you follow the client code for a bit (it's open source), you'll eventually get to https://github.com/GoogleCloudPlatform/google-cloud-go/blob/master/vision/apiv1/image_annotator_client.go#L142:
func (c *ImageAnnotatorClient) BatchAnnotateImages(ctx context.Context, req *visionpb.BatchAnnotateImagesRequest, opts ...gax.CallOption) (*visionpb.BatchAnnotateImagesResponse, error)
You can see that function build up the request, send it, and return the response (the same proto response you get from calling the original function, restricted to res.FullTextAnnotation). See https://github.com/GoogleCloudPlatform/google-cloud-go/blob/master/vision/apiv1/client.go#L109.
answered Nov 12 at 13:40
Tyler Bui-Palsulich
5318
Is there something in particular you're looking for in the JSON? You could pretty-print the response object as JSON, if you trying to explore what's returned:
json, err := json.MarshalIndent(annotation, "", " ")
if err != nil {
log.Fatal(err)
}
fmt.Println(string(json))
It's a bit difficult to get the raw JSON response from this call because under the hood it's using gRPC, not JSON. If you follow the client code for a bit (it's open source), you'll eventually get to https://github.com/GoogleCloudPlatform/google-cloud-go/blob/master/vision/apiv1/image_annotator_client.go#L142:
func (c *ImageAnnotatorClient) BatchAnnotateImages(ctx context.Context, req *visionpb.BatchAnnotateImagesRequest, opts ...gax.CallOption) (*visionpb.BatchAnnotateImagesResponse, error)
You can see that function build up the request, send it, and return the response (the same proto response you get from calling the original function, restricted to res.FullTextAnnotation). See https://github.com/GoogleCloudPlatform/google-cloud-go/blob/master/vision/apiv1/client.go#L109.
answered Nov 12 at 13:40
Tyler Bui-Palsulich
5318
edited Nov 13 at 15:05
answered Nov 12 at 13:40
Tyler Bui-Palsulich
5318
answered Nov 12 at 13:40
Tyler Bui-Palsulich
5318
answered Nov 12 at 13:40
Tyler Bui-Palsulich
5318
5318
Thanks. If there is gRPC used it is not possible to get JSON than . I have to make a JSON manually.
– Roman Gelembjuk
Nov 13 at 7:45
Yes. I updated my answer with a snippet to pretty print JSON for the annotation response.
– Tyler Bui-Palsulich
Nov 13 at 15:06
add a comment |
Thanks. If there is gRPC used it is not possible to get JSON than . I have to make a JSON manually.
– Roman Gelembjuk
Nov 13 at 7:45
Yes. I updated my answer with a snippet to pretty print JSON for the annotation response.
– Tyler Bui-Palsulich
Nov 13 at 15:06
Thanks. If there is gRPC used it is not possible to get JSON than . I have to make a JSON manually.
– Roman Gelembjuk
Nov 13 at 7:45
Thanks. If there is gRPC used it is not possible to get JSON than . I have to make a JSON manually.
– Roman Gelembjuk
Nov 13 at 7:45
Yes. I updated my answer with a snippet to pretty print JSON for the annotation response.
– Tyler Bui-Palsulich
Nov 13 at 15:06
Yes. I updated my answer with a snippet to pretty print JSON for the annotation response.
– Tyler Bui-Palsulich
Nov 13 at 15:06
add a comment |
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