我一直在尝试通过将JSON响应解组到结构中来提取一些JSON,但是我不知道为什么它不能正确执行。我也尝试过gjson
,但结果相同。我在这里想念什么吗?
JSON结果:
{"availabilities":[{"pickup":{"status":"OnlineOnly","purchasable":false},"shipping":{"status":"InStockOnlineOnly","purchasable":true},"sku":"12341231","sellerId":"438178","saleChannelExclusivity":"OnlineOnly","scheduledDelivery":false,"isGiftCard":false,"isService":false}]}
代码:
// Inventory ...
type Inventory struct {
Availabilities []Availability `json:"availabilities"`
}
// Availability ...
type Availability struct {
Sku string `json:"sku"`
SellerID string `json:"sellerId"`
SaleChannelExclusivity string `json:"saleChannelExclusivity"`
ScheduledDelivery bool `json:"scheduledDelivery"`
IsGiftCard bool `json:"isGiftCard"`
IsService bool `json:"isService"`
Pickup Statuses `json:"pickup"`
Shipping Statuses `json:"shipping"`
}
// Statuses ..
type Statuses struct {
Status string `json:"status"`
Purchasable bool `json:"purchasable"`
}
func (pr *Program) checkInventory() {
url := fmt.Sprintf("https://www.bestbuy.ca/ecomm-api/availability/products?accept-language=en-CA&skus=%s", pr.Sku)
log.Infof("URL %s", url)
resp, err := http.Get(url)
if err != nil {
log.Fatal(err)
}
defer resp.Body.Close()
bodyBytes, err := ioutil.ReadAll(resp.Body)
if err != nil {
log.Fatal(err)
}
log.Info(string(bodyBytes))
var inv Inventory
json.Unmarshal(bodyBytes, &inv)
log.Infof("%+v", inv)
}
控制台:
INFO[2020-04-07T03:01:10-07:00] URL https://www.bestbuy.ca/ecomm-api/availability/products?accept-language=en-CA&skus=12341231
INFO[2020-04-07T03:01:10-07:00] {"availabilities":[{"pickup":{"status":"OnlineOnly","purchasable":false},"shipping":{"status":"InStockOnlineOnly","purchasable":true},"sku":"12341231
,"sellerId":"438178","saleChannelExclusivity":"OnlineOnly","scheduledDelivery":false,"isGiftCard":false,"isService":false}]}
INFO[2020-04-07T03:01:10-07:00] {Availabilities:[]}
问题出在json.Unmarshall
调用中。返回错误:"invalid character 'ï' looking for beginning of value” from json.Unmarshal
正如解释here:服务器正在向您发送带有字节顺序标记(BOM)的UTF-8文本字符串。 BOM标识文本是UTF-8编码的,但应在解码之前将其删除。
这可以通过以下行(使用包“ bytes”)完成:
body = bytes.TrimPrefix(body, []byte("\xef\xbb\xbf"))
因此生成的工作代码为:
// Inventory ...
type Inventory struct {
Availabilities []Availability `json:"availabilities"`
}
// Availability ...
type Availability struct {
Sku string `json:"sku"`
SellerID string `json:"sellerId"`
SaleChannelExclusivity string `json:"saleChannelExclusivity"`
ScheduledDelivery bool `json:"scheduledDelivery"`
IsGiftCard bool `json:"isGiftCard"`
IsService bool `json:"isService"`
Pickup Statuses `json:"pickup"`
Shipping Statuses `json:"shipping"`
}
// Statuses ..
type Statuses struct {
Status string `json:"status"`
Purchasable bool `json:"purchasable"`
}
func (pr *Program) checkInventory() {
url := fmt.Sprintf("https://www.bestbuy.ca/ecomm-api/availability/products?accept-language=en-CA&skus=%s", pr.Sku)
log.Infof("URL %s", url)
resp, err := http.Get(url)
if err != nil {
log.Fatal(err)
}
defer resp.Body.Close()
bodyBytes, err := ioutil.ReadAll(resp.Body)
if err != nil {
log.Fatal(err)
}
body := bytes.TrimPrefix(bodyBytes, []byte("\xef\xbb\xbf"))
log.Info(string(body))
var inv Inventory
err = json.Unmarshal([]byte(body), &inv)
if err != nil {
log.Fatal(err)
}
log.Infof("%+v", inv)
}