| 86 | } |
| 87 | |
| 88 | func getToken(ctx context.Context, c *http.Client, id, secret string) (*tokenValue, error) { |
| 89 | const getTenantAccessTokenReq = `{"app_id": "%s","app_secret": "%s"}` |
| 90 | const url = "https://open.feishu.cn/open-apis/auth/v3/tenant_access_token/internal" |
| 91 | body := strings.NewReader(fmt.Sprintf(getTenantAccessTokenReq, id, secret)) |
| 92 | req, err := http.NewRequestWithContext(ctx, http.MethodPost, url, body) |
| 93 | if err != nil { |
| 94 | return nil, errors.Wrapf(err, "construct POST %s", url) |
| 95 | } |
| 96 | req.Header.Set("Content-Type", "application/json") |
| 97 | resp, err := c.Do(req) |
| 98 | if err != nil { |
| 99 | return nil, errors.Wrapf(err, "POST %s", url) |
| 100 | } |
| 101 | |
| 102 | b, err := io.ReadAll(resp.Body) |
| 103 | if err != nil { |
| 104 | return nil, errors.Wrapf(err, "read body of POST %s", url) |
| 105 | } |
| 106 | defer resp.Body.Close() |
| 107 | |
| 108 | if resp.StatusCode != http.StatusOK { |
| 109 | return nil, errors.Errorf("non-200 POST status code %d with body %q", resp.StatusCode, b) |
| 110 | } |
| 111 | |
| 112 | var response tenantAccessTokenResponse |
| 113 | if err := json.Unmarshal(b, &response); err != nil { |
| 114 | return nil, errors.Wrapf(err, "unmarshal body from POST %s", url) |
| 115 | } |
| 116 | if response.Code != 0 { |
| 117 | return nil, errors.Errorf("failed to get tenant access token, code %d, msg %s", response.Code, response.Msg) |
| 118 | } |
| 119 | |
| 120 | return &tokenValue{ |
| 121 | token: response.Token, |
| 122 | expireAt: time.Now().Add(time.Second * time.Duration(response.Expire)), |
| 123 | }, nil |
| 124 | } |
| 125 | |
| 126 | var tokenCacheLock sync.Mutex |
| 127 | |