Tencent/WeKnora · error

decode response: %w

Error message

decode response: %w

What it means

Deserialization error in MinerUCloudReader.applyUploadURLs: the 200 response body could not be JSON-decoded into batchApplyResponse. The %w wraps encoding/json's error, indicating the MinerU API returned a malformed or unexpected schema for the batch file-url apply call.

Source

Thrown at internal/infrastructure/docparser/mineru_cloud_converter.go:153

	}
	httpReq.Header.Set("Authorization", "Bearer "+c.apiKey)
	httpReq.Header.Set("Content-Type", "application/json")

	client := utils.NewSSRFSafeHTTPClient(utils.SSRFSafeHTTPClientConfig{Timeout: 30 * time.Second, MaxRedirects: 5})
	resp, err := client.Do(httpReq)
	if err != nil {
		return "", "", fmt.Errorf("HTTP request: %w", err)
	}
	defer resp.Body.Close()

	if resp.StatusCode != http.StatusOK {
		respBody, _ := io.ReadAll(resp.Body)
		return "", "", fmt.Errorf("API status %d: %s", resp.StatusCode, string(respBody))
	}

	var result batchApplyResponse
	if err := json.NewDecoder(resp.Body).Decode(&result); err != nil {
		return "", "", fmt.Errorf("decode response: %w", err)
	}
	if result.Code != 0 {
		return "", "", fmt.Errorf("API error: %s", result.Msg)
	}
	if len(result.Data.FileURLs) == 0 {
		return "", "", fmt.Errorf("API returned no file_urls")
	}

	logger.Infof(context.Background(), "[MinerUCloud] batch apply ok: batch_id=%s, urls=%d", result.Data.BatchID, len(result.Data.FileURLs))
	return result.Data.BatchID, result.Data.FileURLs[0], nil
}

func (c *MinerUCloudReader) uploadFile(ctx context.Context, uploadURL string, content []byte) error {
	httpReq, err := http.NewRequestWithContext(ctx, http.MethodPut, uploadURL, bytes.NewReader(content))
	if err != nil {
		return fmt.Errorf("create PUT request: %w", err)
	}

View on GitHub (pinned to 988cbb0330)

Solutions

1. Log a body snippet to inspect the unexpected payload
2. Check for proxies rewriting responses
3. Verify the MinerU Cloud API version contract

When it happens

Trigger: Thrown at internal/infrastructure/docparser/mineru_cloud_converter.go:153 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/e9c6d6e114e7ea83. Report an issue: GitHub.