mirror of https://github.com/chaitin/PandaWiki.git
109 lines
2.5 KiB
Go
109 lines
2.5 KiB
Go
package rag
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import (
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"bytes"
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"context"
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"encoding/json"
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"errors"
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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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"time"
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)
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const (
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defaultBaseURL = "http://localhost:8080/api/v1"
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defaultTimeout = 30 * time.Second
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)
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// Client 是所有API的统一客户端
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type Client struct {
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baseURL *url.URL
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apiKey string
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httpClient *http.Client
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}
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type ClientOption func(*Client)
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// New 创建一个新的API客户端
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func New(apiBase string, apiKey string, opts ...ClientOption) *Client {
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baseURL, _ := url.Parse(apiBase)
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c := &Client{
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baseURL: baseURL,
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apiKey: apiKey,
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httpClient: &http.Client{Timeout: defaultTimeout},
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}
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for _, opt := range opts {
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opt(c)
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}
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return c
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}
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// WithHTTPClient 自定义http.Client
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func WithHTTPClient(httpClient *http.Client) ClientOption {
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return func(c *Client) {
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c.httpClient = httpClient
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}
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}
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// newRequest 构造http请求
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func (c *Client) newRequest(ctx context.Context, method, path string, body interface{}) (*http.Request, error) {
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u := c.baseURL.JoinPath(path)
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var buf io.ReadWriter
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if body != nil {
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buf = &bytes.Buffer{}
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enc := json.NewEncoder(buf)
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enc.SetEscapeHTML(false)
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if err := enc.Encode(body); err != nil {
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return nil, fmt.Errorf("failed to encode request body: %w", err)
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}
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}
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req, err := http.NewRequestWithContext(ctx, method, u.String(), buf)
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if err != nil {
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return nil, fmt.Errorf("failed to create request: %w", err)
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}
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req.Header.Set("Content-Type", "application/json")
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req.Header.Set("Authorization", "Bearer "+c.apiKey)
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req.Header.Set("X-API-Version", "1.0.0")
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req.Header.Set("X-App-Name", "Panda-Wiki")
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return req, nil
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}
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// do 发送请求并解析响应
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func (c *Client) do(req *http.Request, v interface{}) error {
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resp, err := c.httpClient.Do(req)
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if err != nil {
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return fmt.Errorf("failed to send request: %w", 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 fmt.Errorf("failed to read response body: %w", err)
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}
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// 检查业务code
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var common CommonResponse
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_ = json.Unmarshal(body, &common)
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if common.Code != 0 {
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return fmt.Errorf("业务错误 code=%d, message=%s", common.Code, common.Message)
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}
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if v != nil {
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if err := json.Unmarshal(body, v); err != nil {
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return fmt.Errorf("failed to decode response: %w", err)
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}
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}
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return nil
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}
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// parseErrorResponse 解析错误响应
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func parseErrorResponse(resp *http.Response) error {
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var errResp CommonResponse
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if err := json.NewDecoder(resp.Body).Decode(&errResp); err != nil {
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return fmt.Errorf("failed to decode error response: %w", err)
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}
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return errors.New(errResp.Message)
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}
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