MiFaZhan
97 lines
2.1 KiB
Go
97 lines
2.1 KiB
Go
package dx
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import (
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"context"
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"fmt"
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"io"
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"net/http"
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"net/url"
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"strings"
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"time"
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)
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// Config 网关鉴权与请求配置
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type Config struct {
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BaseURL string // 默认 https://cmp-api.ctwing.cn:20164
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AppKey string
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AppSecret string
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Timeout time.Duration
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}
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// Client API 客户端
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type Client struct {
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baseURL string
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appKey string
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appSecret string
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http *http.Client
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}
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// New 创建客户端
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func NewClient(cfg Config) *Client {
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base := cfg.BaseURL
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if base == "" {
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base = DefaultBaseURL
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}
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timeout := cfg.Timeout
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if timeout == 0 {
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timeout = 10 * time.Second
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}
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return &Client{
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baseURL: strings.TrimSuffix(base, "/"),
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appKey: cfg.AppKey,
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appSecret: cfg.AppSecret,
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http: &http.Client{
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Timeout: timeout,
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},
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}
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}
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// DoGetRequest 通用GET请求（自动处理签名）
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// endpoint: API路径，如 "/api/v1/openbill/queryTraffic"
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// params: 查询参数，需调用方自行构建
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func (c *Client) DoGetRequest(ctx context.Context, endpoint string, params url.Values) ([]byte, error) {
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req, err := c.doGetRequest(ctx, endpoint, params)
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if err != nil {
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return nil, err
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}
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return c.doRequest(req)
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}
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// doGetRequest 封装通用的 GET 请求构建逻辑
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func (c *Client) doGetRequest(ctx context.Context, endpoint string, params url.Values) (*http.Request, error) {
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queryString := params.Encode()
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timestamp := GetTimestampGMT()
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signStr, err := BuildSign(queryString, "", c.appSecret, timestamp)
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if err != nil {
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return nil, err
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}
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reqURL := c.baseURL + endpoint + "?" + queryString
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req, err := http.NewRequestWithContext(ctx, http.MethodGet, reqURL, nil)
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if err != nil {
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return nil, err
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}
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req.Header.Set("AppKey", c.appKey)
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req.Header.Set("Sign", signStr)
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req.Header.Set("Timestamp", timestamp)
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return req, nil
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}
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// doRequest 执行HTTP请求
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func (c *Client) doRequest(req *http.Request) ([]byte, error) {
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resp, err := c.http.Do(req)
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if err != nil {
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return nil, err
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}
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defer resp.Body.Close()
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body, err := io.ReadAll(resp.Body)
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if err != nil {
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return nil, err
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}
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if resp.StatusCode != http.StatusOK {
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return nil, fmt.Errorf("http status %d: %s", resp.StatusCode, string(body))
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}
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return body, nil
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}
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