fho_forward/example/main.go

package main

import (
	"fmt"
	"io"
	"time"

	fho "git.mokkon.com/sainw/fho_forward/client"
)

const (
	// address = "fhogrpc-test.seinmaungengineering.com:7091"
	address = "localhost:7090"
)

type Product struct {
	ID    string
	Name  string
	Color string
}

type RegionProduct struct {
	ProductID string
	Name      string
	Color     string
	Variant   float32
}

func ProductFromMap(m map[string]interface{}) *Product {
	return &Product{ID: fho.ToString(m["id"]),
		Name:  fho.ToString(m["name"]),
		Color: fho.ToString(m["color"])}
}

func RegionProductFromMap(m map[string]interface{}) *RegionProduct {
	return &RegionProduct{ProductID: fho.ToString(m["product_id"]),
		Name:    fho.ToString(m["name"]),
		Color:   fho.ToString(m["color"]),
		Variant: fho.ToFloat32(m["variant"])}
}
func main() {
	// c, err := fho.NewClient(address, "da910506-4bdc-4dc2-9481-58a4e3e3c8bf", "1adf4633-7e9e-4bd0-b512-7b087d9c9719")
	client, err := fho.NewClient(address, "bd38e9ac-210a-4e85-865c-401270c07220", "8c95f7fa-3071-427d-a27a-6f96e1d9590e")
	if err != nil {
		panic(err)
	}
	go listen(client)
	// query(client)
	// for {
	// 	time.Sleep(time.Second * 5)
	// 	// query(client)
	// }
	select {}
}

func listen(client *fho.FhoClient) error {
	snap, err := client.QuerySnapshot("products", time.Now().Add(time.Hour*-114))
	if err != nil {
		fmt.Println("listen error:", err.Error())
		return err
	}
	for {
		data, err := snap.Next()
		if err == io.EOF {
			print("Error EOF")
			break
		}
		if err != nil {
			print("Error:", err.Error())
			break
		}
		for _, rec := range data {
			_product := ProductFromMap(rec)
			fmt.Printf("Listener========================\n")
			printProduct(_product)
		}
	}
	return nil
}

func query(client *fho.FhoClient) error {
	data, err := client.Query("region_product_variants", time.Now().Add(time.Hour*-114))
	if err != nil {
		fmt.Println("query error:", err.Error())
		return err
	}
	for _, rec := range data {
		_product := RegionProductFromMap(rec)
		printRegionProduct(_product)
	}
	return nil
}

func printProduct(p *Product) {
	fmt.Printf("ID : %v\n", p.ID)
	fmt.Printf("Name : %v\n", p.Name)
	fmt.Printf("Color : %v\n", p.Color)
}

func printRegionProduct(p *RegionProduct) {
	fmt.Printf("Product ID : %v\n", p.ProductID)
	fmt.Printf("Name : %v\n", p.Name)
	fmt.Printf("Color : %v\n", p.Color)
	fmt.Printf("Variant : %v\n", p.Variant)
}
func dumpMap(m []map[string]interface{}) {
	for _, r := range m {
		for k, v := range r {
			fmt.Printf("%v : %v\n", k, v)
		}
		fmt.Printf("-----------------\n")
	}
}