chenhg5/cc-connect · error

%s: fetch tenant access token returned empty token

Error message

%s: fetch tenant access token returned empty token

What it means

fetchFreshTenantAccessToken: the self-built-app token endpoint call succeeded but returned success without issuing a token (empty token) — an app-configuration problem rather than a transport failure.

Source

Thrown at platform/feishu/feishu.go:4115

	}

	slog.Warn(p.tag()+": retrying request with fresh tenant access token", "operation", operation)
	return fn(p.replayAPIClient(), larkcore.WithTenantAccessToken(freshToken))
}

func (p *Platform) fetchFreshTenantAccessToken(ctx context.Context) (string, error) {
	resp, err := p.replayAPIClient().GetTenantAccessTokenBySelfBuiltApp(ctx, &larkcore.SelfBuiltTenantAccessTokenReq{
		AppID:     p.appID,
		AppSecret: p.appSecret,
	})
	if err != nil {
		return "", fmt.Errorf("%s: fetch tenant access token: %w", p.tag(), err)
	}
	if !resp.Success() {
		return "", fmt.Errorf("%s: fetch tenant access token code=%d msg=%s", p.tag(), resp.Code, resp.Msg)
	}
	if strings.TrimSpace(resp.TenantAccessToken) == "" {
		return "", fmt.Errorf("%s: fetch tenant access token returned empty token", p.tag())
	}
	return resp.TenantAccessToken, nil
}

func (p *Platform) replayAPIClient() *lark.Client {
	p.replayClientMu.Lock()
	defer p.replayClientMu.Unlock()
	if p.replayClient == nil {
		p.replayClient = newFeishuReplayClient(p.appID, p.appSecret, p.domain)
	}
	return p.replayClient
}

func newFeishuReplayClient(appID, appSecret, domain string) *lark.Client {
	var opts []lark.ClientOptionFunc
	opts = append(opts, lark.WithEnableTokenCache(false))
	if domain != "" && domain != lark.FeishuBaseUrl {
		opts = append(opts, lark.WithOpenBaseUrl(domain))

View on GitHub (pinned to 4000b2338a)

Solutions

1. Verify the app is enabled and the same app_id/app_secret pair is used
2. Re-check app permissions/scopes in the Feishu developer console

When it happens

Trigger: Thrown at platform/feishu/feishu.go:4115 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of chenhg5/cc-connect@4000b2338a (2026-09-06). Data as JSON: /api/errors/ff92feea56cd61f3. Report an issue: GitHub.