Tencent/WeKnora · error

failed to create request: %w

Error message

failed to create request: %w

What it means

http.NewRequestWithContext failed while constructing the GET request to the SearXNG /search endpoint. This means the request was never sent. In practice this fires when the composed URL (p.baseURL + "/search?" + encoded query) is malformed for Go's url.Parse, or the context is invalid.

Source

Thrown at internal/infrastructure/web_search/searxng.go:119

	if maxResults <= 0 {
		maxResults = 5
	}

	q := url.Values{}
	q.Set("q", query)
	q.Set("format", "json")
	// Use "all" (SearXNG's documented value for "no language filter") instead
	// of "auto", which is a UI-side default and not a valid /search parameter.
	// safesearch is intentionally not set here so the value configured in the
	// instance's settings.yml is honored.
	q.Set("language", "all")

	reqURL := p.baseURL + "/search?" + q.Encode()
	logger.Infof(ctx, "[WebSearch][SearXNG] query=%q maxResults=%d url=%s", query, maxResults, p.baseURL)

	req, err := http.NewRequestWithContext(ctx, http.MethodGet, reqURL, nil)
	if err != nil {
		return nil, fmt.Errorf("failed to create request: %w", err)
	}
	req.Header.Set("Accept", "application/json")
	req.Header.Set("User-Agent", "WeKnora/1.0")

	resp, err := p.client.Do(req)
	if err != nil {
		return nil, fmt.Errorf("failed to execute request: %w", err)
	}
	defer resp.Body.Close()

	if resp.StatusCode != http.StatusOK {
		body, _ := io.ReadAll(io.LimitReader(resp.Body, 1024))
		return nil, fmt.Errorf("searxng returned status %d: %s", resp.StatusCode, string(body))
	}

	var data searxngResponse
	if err := json.NewDecoder(resp.Body).Decode(&data); err != nil {
		p.lastUnresponsive = nil

View on GitHub (pinned to 988cbb0330)

Solutions

1. Log/inspect the wrapped error and the reqURL actually built; fix the baseURL in provider parameters
2. url.Parse the baseURL yourself at construction time (ValidateSearxngBaseURL should catch most of these earlier)
3. Trim whitespace and strip surrounding quotes from configured URLs
4. Check the context passed to Search — ensure it is a live context.Background()-derived context

Example fix

// before
baseURL := "https://searxng.example.com/ " // trailing space
// after
baseURL := strings.TrimSpace(strings.Trim(cfg.BaseURL, "\"'"))

if _, err := url.Parse(baseURL); err != nil {
    return fmt.Errorf("invalid searxng base_url: %w", err)
}

When it happens

Trigger: baseURL containing characters invalid in a URL (spaces, control chars, unencoded braces) that survive url.Values encoding in the query but break the base; an already-canceled/invalid context is rare but also returns an error here.

Common situations: Tenant config holding an untrimmed or quoted base_url like "https://searxng.example.com/ " or "\"https://searxng.example.com\""; interpolation bugs leaving template placeholders in the URL.

Related errors

• failed to create request: %w
• failed to create Exa request: %w
• failed to create request: %w
• failed to execute request: %w
• searxng returned status %d: %s

AI-assisted analysis of Tencent/WeKnora@988cbb0330 (2026-09-02). Data as JSON: /api/errors/a0a125bb8390a386. Report an issue: GitHub.