> ## Documentation Index
> Fetch the complete documentation index at: https://docs-docflow.textin.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Chinese Category Parameter Passing Issues

> Solving issues with Chinese or other non-English category names in API parameter passing

When using the DocFlow API, if the file category name contains Chinese or other non-English characters, passing the raw category name may cause the following issues:

1. **Category matching failure**: API cannot correctly recognize Chinese category names
2. **Processing errors**: Returns error messages that the category does not exist
3. **Encoding issues**: URL parameters containing non-ASCII characters cause request failures

## Solution

### 1. URL Encoding Processing

Chinese category names must be UTF-8 URL encoded before being passed as API parameters.

#### Python Example

```python theme={null}
import urllib.parse

# Original Chinese category name
category = "发票"

# URL encoding
encoded_category = urllib.parse.quote(category)
print(f"After encoding: {encoded_category}")
# Output: %E5%8F%91%E7%A5%A8
```

#### JavaScript Example

```javascript theme={null}
// Original Chinese category name
const category = "发票";

// URL encoding
const encodedCategory = encodeURIComponent(category);
console.log(`After encoding: ${encodedCategory}`);
// Output: %E5%8F%91%E7%A5%A8
```