plutov

const (
	graphFile = "/model/imagenet_comp_graph_label_strings.txt"
	labelsFile = "/model/imagenet_comp_graph_label_strings.txt"
)

graph, labels, err := loadModel()
if err != nil {
	log.Fatalf("unable to load model: %v", err)
}

plutov

func normalizeImage(body io.ReadCloser) (*tensorflow.Tensor, error) {
	var buf bytes.Buffer
	io.Copy(&buf, body)

	tensor, err := tensorflow.NewTensor(buf.String())
	if err != nil {
		return nil, err
	}

	graph, input, output, err := getNormalizedGraph()

plutov

// Create a session for inference over modelGraph.
session, err := tf.NewSession(modelGraph, nil)
if err != nil {
	log.Fatalf("could not init session: %v", err)
}
defer session.Close()

output, err := session.Run(
	map[tf.Output]*tf.Tensor{
		modelGraph.Operation("input").Output(0): tensor,

plutov

res := getTopFiveLabels(labels, output[0].Value().([][]float32)[0])
for _, l := range res {
	fmt.Printf("label: %s, probability: %.2f%%\n", l.Label, l.Probability*100)
}

func getTopFiveLabels(labels []string, probabilities []float32) []Label {
	var resultLabels []Label
	for i, p := range probabilities {
		if i >= len(labels) {
			break

plutov

FROM ctava/tensorflow-go

RUN mkdir -p /model && \
  curl -o /model/inception5h.zip -s "http://download.tensorflow.org/models/inception5h.zip" && \
  unzip /model/inception5h.zip -d /model

WORKDIR /go/src/imgrecognition
COPY . .
RUN go build
ENTRYPOINT [ "/go/src/imgrecognition/imgrecognition" ]

plutov

package main

import (
	"fmt"
)

type Node struct {
	Value int
}

plutov

type Customer struct {
	ID    int
	Email string
	Phone sql.NullString
	Age   sql.NullInt64
}

plutov

fmt.Println(customer.Phone.Value)

plutov

type Customer struct {
	ID    int
	Email string
	Phone string
	Age   int
}

func GetCustomerByEmail(db *sql.DB, email string) (*Customer, error) {
	stmt, err := db.Prepare("SELECT id, email, phone, age FROM customer where email = ?")
	if err != nil {

plutov

var nt mysql.NullTime
err := db.QueryRow("SELECT time FROM foo WHERE id = ?", id).Scan(&nt)

if nt.Valid {
   // use nt.Time
} else {
   // NULL value
}