Issue while obtaining labels

[lukaszraczylo]

Parts of code responsible for image analysis:

batch, _ := client.NewBatchAnnotateImageRequest([]string{imageURL}, pigeon.NewFeature(pigeon.LabelDetection), pigeon.NewFeature(pigeon.SafeSearchDetection))

Getting annotations for both labels and safe search at the same time.

res, err := client.ImagesService().Annotate(batch).Do()
b, _ := json.Marshal(res.Responses)
json.Unmarshal(b, &GoogleVision)

Parsing the output into struct created automagically from the sample json ( as follows )

JSON:

{"labelAnnotations":[{"description":"anime","mid":"/m/0jxy","score":0.81207085,"topicality":0.81207085},{"description":"art","mid":"/m/0jjw","score":0.59014136,"topicality":0.59014136},{"description":"action figure","mid":"/m/017h86","score":0.5556467,"topicality":0.5556467},{"description":"graphics","mid":"/m/021sdg","score":0.53742254,"topicality":0.53742254},{"description":"video game software","mid":"/m/0987_ns","score":0.52508384,"topicality":0.52508384},{"description":"fiction","mid":"/m/02xlf","score":0.51081264,"topicality":0.51081264},{"description":"screenshot","mid":"/m/01zbnw","score":0.50924677,"topicality":0.50924677},{"description":"recreation","mid":"/m/06bm2","score":0.50229543,"topicality":0.50229543}],"safeSearchAnnotation":{"adult":"VERY_UNLIKELY","medical":"VERY_UNLIKELY","racy":"POSSIBLE","spoof":"VERY_UNLIKELY","violence":"UNLIKELY"}}

STRUCT:

type AutoGenerated struct { 	LabelAnnotations []struct { 		Description string  `json:"description"` 		Mid         string  `json:"mid"` 		Score       float64 `json:"score"` 		Topicality  float64 `json:"topicality"` 	} `json:"labelAnnotations"` 	SafeSearchAnnotation struct { 		Adult    string `json:"adult"` 		Medical  string `json:"medical"` 		Racy     string `json:"racy"` 		Spoof    string `json:"spoof"` 		Violence string `json:"violence"` 	} `json:"safeSearchAnnotation"` }
--

Unfortunately:
GoogleVision.SafeSearchAnnotation.Adult contains correct value
but

for _, label := range GoogleVision.LabelAnnotations {
		Log.Info("Label detected", label) }

is always empty.
Any ideas what's missing?

[kaneshin]

Output JSON is always inside of an array. You need to parse like the below;

// The AutoGenerated is defined by you from comment.
type AutoGenerated struct {
  LabelAnnotations []struct {
    // ...
  } `json:"labelAnnotations"`
  safeSearchAnnotation struct {
    // ...
  } `json:"safeSearchAnnotation"`
}

// You need to redefine like this for json.Unmarshal
type Parsable []AutoGenerated

Sorry for the late response.