重新整理物联网服务，分离业务逻辑。

iot/EdgeAgent/pkg/net/api.go

@@ -0,0 +1,22 @@
+package api
+
+import "sentinel/pkg/model"
+
+const (
+	updateCheckURL = "/iot/common/update/check"
+)
+
+func CheckUpdate(deviceID string) (*model.UpdateInfo, error) {
+	var resp model.UpdateInfo
+	err := Get(
+		updateCheckURL,
+		map[string]string{
+			"deviceID": deviceID,
+		},
+		&resp,
+	)
+	if err != nil {
+		return nil, err
+	}
+	return &resp, nil
+}

iot/EdgeAgent/pkg/net/httpclient.go

@@ -0,0 +1,101 @@
+package api
+
+import (
+	"bytes"
+	"encoding/json"
+	"fmt"
+	"net/http"
+	"net/url"
+	"sentinel/pkg/model"
+	"time"
+
+	"sentinel/pkg/config"
+	"sentinel/pkg/log"
+)
+
+var client = &http.Client{
+	Timeout: 5 * time.Second,
+}
+
+func Get(path string, query map[string]string, out any) error {
+	return do(http.MethodGet, path, query, nil, out)
+}
+
+func Post(path string, body any, out any) error {
+	return do(http.MethodPost, path, nil, body, out)
+}
+
+func do(method, path string, query map[string]string, body any, out any) error {
+	u, err := url.Parse(config.BASE_URL + path)
+	if err != nil {
+		log.Error("parse url failed: " + err.Error())
+		return err
+	}
+
+	if len(query) > 0 {
+		q := u.Query()
+		for k, v := range query {
+			q.Set(k, v)
+		}
+		u.RawQuery = q.Encode()
+	}
+
+	var reqBody *bytes.Reader
+	if body != nil {
+		b, err := json.Marshal(body)
+		if err != nil {
+			log.Error("marshal body failed: " + err.Error())
+			return err
+		}
+		reqBody = bytes.NewReader(b)
+	} else {
+		reqBody = bytes.NewReader(nil)
+	}
+
+	req, err := http.NewRequest(method, u.String(), reqBody)
+	if err != nil {
+		log.Error("create request failed: " + err.Error())
+		return err
+	}
+	req.Header.Set("Content-Type", "application/json")
+	req.Header.Set("apikey", "NzusyzcLIUoZ22tflHN2sOjHrry3W7zJ")
+
+	resp, err := client.Do(req)
+	if err != nil {
+		log.Error("request failed: " + err.Error())
+		return err
+	}
+	defer resp.Body.Close()
+
+	if resp.StatusCode < 200 || resp.StatusCode >= 300 {
+		log.Error("http status error: " + resp.Status)
+		return fmt.Errorf("http status %d", resp.StatusCode)
+	}
+
+	// 解析成 BaseResponse
+	var baseResp model.BaseResponse
+	if err := json.NewDecoder(resp.Body).Decode(&baseResp); err != nil {
+		log.Error("decode base response failed: " + err.Error())
+		return err
+	}
+
+	if !baseResp.Status {
+		log.Error("server returned error: " + baseResp.Message)
+		return fmt.Errorf(baseResp.Message)
+	}
+
+	if out != nil && baseResp.Data != nil {
+		// 将 Data 转成业务类型
+		b, err := json.Marshal(baseResp.Data)
+		if err != nil {
+			log.Error("marshal data failed: " + err.Error())
+			return err
+		}
+		if err := json.Unmarshal(b, out); err != nil {
+			log.Error("unmarshal data to out failed: " + err.Error())
+			return err
+		}
+	}
+
+	return nil
+}