Tencent/WeKnora · error

create request: %w

Error message

create request: %w

What it means

HTTP client error in PaddleOCRVLReader.callLayoutParsing: http.NewRequestWithContext could not build the POST to the local/self-hosted PaddleOCR-VL /layout-parsing endpoint. The %w retains the net/http cause; raised after payload marshaling, before the request is executed.

Source

Thrown at internal/infrastructure/docparser/paddleocr_vl_converter.go:159

func (c *PaddleOCRVLReader) callLayoutParsing(
	ctx context.Context, req *types.ReadRequest, content []byte,
) (string, map[string]string, error) {
	payload := paddleOCRVLRecognitionParams(c.useSeal, c.useChart)
	payload["file"] = base64.StdEncoding.EncodeToString(content)
	payload["fileType"] = fileTypeCode(req)
	payload["visualize"] = false

	body, err := json.Marshal(payload)
	if err != nil {
		return "", nil, fmt.Errorf("marshal payload: %w", err)
	}

	httpReq, err := http.NewRequestWithContext(
		ctx, http.MethodPost, c.endpoint+"/layout-parsing", bytes.NewReader(body),
	)
	if err != nil {
		return "", nil, fmt.Errorf("create request: %w", err)
	}
	httpReq.Header.Set("Content-Type", "application/json")

	client := utils.NewSSRFSafeHTTPClient(utils.SSRFSafeHTTPClientConfig{
		Timeout:      paddleOCRVLTimeout,
		MaxRedirects: 5,
	})
	resp, err := client.Do(httpReq)
	if err != nil {
		return "", nil, fmt.Errorf("HTTP request: %w", err)
	}
	defer resp.Body.Close()

	respBody, err := io.ReadAll(resp.Body)
	if err != nil {
		return "", nil, fmt.Errorf("read response body: %w", err)
	}

View on GitHub (pinned to 988cbb0330)

Solutions

1. Verify the configured PaddleOCR-VL endpoint parses as a URL
2. Check for invalid characters introduced by config
3. Log the composed URL to diagnose

When it happens

Trigger: Thrown at internal/infrastructure/docparser/paddleocr_vl_converter.go:159 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of Tencent/WeKnora@988cbb0330 (2026-09-02). Data as JSON: /api/errors/a6973a07df52cc9c. Report an issue: GitHub.