Insert data to big query

bq.go

package main

import (
  "fmt"
  "context"

  "cloud.google.com/go/bigquery"
)

type Item struct {
	EventName string
	PostUUID  string
}

func (i *Item) Save() (map[string]bigquery.Value, string, error) {
	return map[string]bigquery.Value{
		"event_name": i.EventName,
		"post_uuid":  i.PostUUID,
	}, "", nil
}

func main() {
	ctx := context.Background()
	client, err := bigquery.NewClient(ctx, "project_id")

	if err != nil {
		fmt.Println(err)
		return
	}

	u := client.Dataset("dataset_name").Table("table_name").Uploader()

	items := []*Item{
		{EventName: "START_UPLOADING", PostUUID: "298dd3ed-3834-459e-9299-965243704ff3"},
	}

	if err = u.Put(ctx, items); err != nil {
		fmt.Println("error")
		fmt.Println(err)
        return
	}

	fmt.Println("success")
}

Authentication

export GOOGLE_APPLICATION_CREDENTIALS=[path_to_creds_file]