chenhg5/cc-connect · error

yuanbao: create request: %w

Error message

yuanbao: create request: %w

What it means

fetchToken in the yuanbao platform adapter failed to construct the outbound HTTP POST to the sign-token API (http.NewRequest returned an error). This wraps the underlying net/http error and is stored as lastErr while the retry loop continues to the next attempt. It almost always indicates a malformed URL rather than a transient network problem.

Source

Thrown at platform/yuanbao/sign.go:141

		}
		nonceBytes := make([]byte, 16)
		if _, err := rand.Read(nonceBytes); err != nil {
			lastErr = fmt.Errorf("yuanbao: generate nonce: %w", err)
			continue
		}
		nonce := hex.EncodeToString(nonceBytes)
		timestamp := buildTimestamp()
		signature := computeSignature(nonce, timestamp, appKey, appSecret)

		payload := map[string]string{
			"app_key": appKey, "nonce": nonce,
			"signature": signature, "timestamp": timestamp,
		}
		body, _ := json.Marshal(payload)

		req, err := http.NewRequest("POST", urlStr, strings.NewReader(string(body)))
		if err != nil {
			lastErr = fmt.Errorf("yuanbao: create request: %w", err)
			continue
		}
		req.Header.Set("Content-Type", "application/json")
		req.Header.Set("X-AppVersion", "cc-connect-yuanbao/1.0.0")
		req.Header.Set("X-Instance-Id", fmt.Sprintf("%d", instanceID))
		req.Header.Set("X-Bot-Version", "cc-connect-yuanbao/1.0.0")
		if routeEnv != "" {
			req.Header.Set("X-Route-Env", routeEnv)
		}

		resp, err := client.Do(req)
		if err != nil {
			lastErr = fmt.Errorf("yuanbao: request failed: %w", err)
			continue
		}
		respBody, _ := io.ReadAll(resp.Body)
		_ = resp.Body.Close()
		if resp.StatusCode != http.StatusOK {

View on GitHub (pinned to 4000b2338a)

Solutions

  1. Check the api_domain value in config.toml; strip whitespace and ensure it is a valid absolute URL with http(s) scheme.
  2. Run `cc-connect yuanbao setup` to validate the token/domain before starting the platform; the error is surfaced there too.
  3. Inspect the wrapped error (%w target) for the exact url.Parse failure message, e.g. `net/http: invalid control character in URL`.
  4. If the domain is correct but the code builds the URL, log urlStr before http.NewRequest to see the malformed value.

Example fix

// before
apiDomain = "https://yuanbao.example.com/\n"
// after
apiDomain = strings.TrimSpace("https://yuanbao.example.com/")
Defensive patterns

Strategy: validation

Validate before calling

if u, err := url.Parse(apiDomain); err != nil || u.Scheme == "" || u.Host == "" {
    return fmt.Errorf("invalid api_domain %q: %w", apiDomain, err)
}

Prevention

When it happens

Trigger: Calling fetchToken (directly or via getToken / VerifyCredentials) with an apiDomain that produces an unparseable URL string passed to http.NewRequest("POST", urlStr, ...) — e.g. a control character or invalid scheme in the configured domain.

Common situations: Config mistake: bot_token configured with surrounding whitespace/control chars, or api_domain in config.toml containing a trailing newline, embedded spaces, or a scheme-less garbage value pasted from a doc.

Understand the failure class

Background: "Invalid URL" / "URL cannot be empty": fix the malformed or missing URL behind request-construction failures — this error's family across 50 libraries.

Related errors


AI-assisted analysis of chenhg5/cc-connect@4000b2338a (2026-09-06). Data as JSON: /api/errors/e4993b0ddd63fa3b. Report an issue: GitHub.