chenhg5/cc-connect · error

get token

Error message

get token: %w

What it means

Wrap in downloadMedia of a getAccessToken failure: the cached token was expired/absent and fetching a new one failed (the underlying cause — transport error, invalid credentials, or API errcode — is chained in the wrapped error). Media download cannot proceed without the token, so the whole fetch aborts.

Solutions

1. Inspect the chained error to distinguish network failure (retry) from credential errors (fix config)
2. On token-expiry races, retry once — a concurrent refresh may have already renewed it
3. Log with the underlying cause preserved via the %w chain

When it happens

Trigger: Thrown at platform/wecom/wecom.go:882 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/7199eb3dec86f847. Report an issue: GitHub.

Appendix: source

Thrown at platform/wecom/wecom.go:882

	if len(data) >= 6 {
		head := string(data[:6])
		if head == "GIF87a" || head == "GIF89a" {
			return "image/gif"
		}
	}
	if len(data) >= 12 && string(data[:4]) == "RIFF" && string(data[8:12]) == "WEBP" {
		return "image/webp"
	}
	if len(data) >= 4 && string(data[:4]) == "%PDF" {
		return "application/pdf"
	}
	return ""
}

func (p *Platform) downloadMedia(mediaID string) ([]byte, error) {
	accessToken, err := p.getAccessToken()
	if err != nil {
		return nil, fmt.Errorf("get token: %w", err)
	}
	u := p.wecomAPIURL("/cgi-bin/media/get", url.Values{
		"access_token": []string{accessToken},
		"media_id":     []string{mediaID},
	})
	resp, err := p.apiClient.Get(u)
	if err != nil {
		return nil, fmt.Errorf("download: %w", err)
	}
	defer resp.Body.Close()
	return io.ReadAll(resp.Body)
}

View on GitHub (pinned to 4000b2338a)