fixed fetching of optional fields

backend/diyhrt_fetch.go

@@ -3,27 +3,46 @@ package backend
 import (
 	"encoding/json"
 	"fmt"
+	"io"
 	"net/http"
 	"os"
+	"time"
 )
 
 const endpoint = "https://diyhrt.market/api/listings"
 
 func GetListings() ([]Listing, error) {
 	apiKey := os.Getenv("API_KEY")
-	fmt.Println(apiKey)
-
-	// why put api key in url parameter
-	resp, err := http.NewRequest("GET", endpoint+"?api_token="+apiKey, nil)
-
-	if err != nil {
-		fmt.Print(err.Error())
-		return []Listing{}, err
+	if apiKey == "" {
+		return nil, fmt.Errorf("API_KEY environment variable not set")
 	}
 
+	// Create HTTP client
+	client := &http.Client{Timeout: 10 * time.Second}
+
+	// Create request
+	req, err := http.NewRequest("GET", endpoint+"?api_token="+apiKey, nil)
+	if err != nil {
+		return nil, fmt.Errorf("creating request failed: %w", err)
+	}
+
+	// Send request
+	resp, err := client.Do(req)
+	if err != nil {
+		return nil, fmt.Errorf("request failed: %w", err)
+	}
+	defer resp.Body.Close()
+
+	// Check status code
+	if resp.StatusCode != http.StatusOK {
+		body, _ := io.ReadAll(resp.Body)
+		return nil, fmt.Errorf("unexpected status code %d: %s", resp.StatusCode, string(body))
+	}
+
+	// Decode response
 	var listings []Listing
 	if err := json.NewDecoder(resp.Body).Decode(&listings); err != nil {
-		return []Listing{}, err
+		return nil, fmt.Errorf("decoding failed: %w", err)
 	}
 
 	return listings, nil

backend/diyhrt_models.go

@@ -2,40 +2,40 @@ package backend
 
 type ActiveIngredient struct {
 	Name        string `json:"name"`
-	Ester       string `json:"ester"`
-	DisplayName string `json:"display_name"`
+	Ester       string `json:"ester,omitempty"`
+	DisplayName string `json:"display_name,omitempty"`
 }
 
 type Product struct {
-	Id               int              `json:"id"`
+	Id               int              `json:"id,omitempty"`
 	Name             string           `json:"name"`
-	Image            string           `json:"image"`
+	Image            string           `json:"image,omitempty"`
 	ActiveIngredient ActiveIngredient `json:"active_ingredient"`
 }
 
 type Store struct {
-	Id                 int    `json:"id"`
-	Name               string `json:"name"`
-	Url                string `json:"url"`
-	Description        string `json:"description"`
-	ShipsFromCountry   string `json:"ships_from_country"`
-	ShipsToCountry     string `json:"ships_to_country"`
-	ServiceStatus      string `json:"service_status"`
-	ServiceStatusNotes string `json:"service_status_notes"`
-	PaymentMethods     string `json:"payment_methods"`
-	CategoryName       string `json:"category_name"`
+	Id                 int      `json:"id,omitempty"`
+	Name               string   `json:"name"`
+	Url                string   `json:"url"`
+	Description        string   `json:"description"`
+	ShipsFromCountry   string   `json:"ships_from_country,omitempty"`
+	ShipsToCountry     string   `json:"ships_to_country,omitempty"`
+	ServiceStatus      string   `json:"service_status"`
+	ServiceStatusNotes string   `json:"service_status_notes,omitempty"`
+	PaymentMethods     []string `json:"payment_methods,omitempty"`
+	CategoryName       string   `json:"category_name,omitempty"`
 }
 
 type Listing struct {
-	Id             int     `json:"id"`
-	ProductName    string  `json:"product_name"`
+	Id             int     `json:"id,omitempty"`
+	ProductName    string  `json:"product_name,omitempty"`
 	StoreName      string  `json:"store_name"`
-	Price          string  `json:"price"`
-	PriceCurrency  string  `json:"price_currency"`
-	State          string  `json:"state"`
+	Price          string  `json:"price,omitempty"`
+	PriceCurrency  string  `json:"price_currency,omitempty"`
+	State          string  `json:"state,omitempty"`
 	InStock        bool    `json:"in_stock"`
-	Url            string  `json:"url"`
-	PricingPerUnit string  `json:"pricing_per_unit"`
+	Url            string  `json:"url,omitempty"`
+	PricingPerUnit string  `json:"pricing_per_unit,omitempty"`
 	Product        Product `json:"product"`
 	Store          Store   `json:"store"`
 }

main.go

@@ -9,7 +9,12 @@ import (
 func main() {
 	fmt.Println("running transfem startpage")
 
-	listings, _ := backend.GetListings()
+	listings, err := backend.GetListings()
+	if err != nil {
+		fmt.Println(err)
+		return
+	}
+
 	for _, l := range listings {
 		fmt.Println(l)
 	}