DIYgod/RSSHub · warning · Error

Unknown type: ${type}

Error message

Unknown type: ${type}

What it means

Same switch-default guard as 410, in the NJNU JWC (教务处) route. Type must be one of jstz / xwdt / xstz; anything else throws a generic Error 'Unknown type'. Returns a 500 to the client.

Source

Thrown at lib/routes/njnu/jwc/jwc.ts:47

async function handler(ctx) {
    const type = ctx.req.param('type');
    let title, path;
    switch (type) {
        case 'jstz':
            title = '教师通知';
            path = 'jstz.htm';
            break;
        case 'xwdt':
            title = '新闻动态';
            path = 'xwdt.htm';
            break;
        case 'xstz':
            title = '学生通知';
            path = 'xstz.htm';
            break;
        default:
            throw new Error(`Unknown type: ${type}`);
    }
    const base = 'http://jwc.njnu.edu.cn/index/' + path;

    const response = await got(base);

    const $ = load(response.data);

    const list = $('.list_txt a').toArray();

    const result = await ProcessFeed(list, cache);

    return {
        title: '南京师范大学教务处 - ' + title,
        link: 'http://jwc.njnu.edu.cn/',
        description: '南京师范大学教务处',
        item: result,
    };
}

View on GitHub (pinned to bed535e087)

Solutions

1. Use one of jstz (教师通知), xwdt (新闻动态), xstz (学生通知).
2. If maintaining the route, switch to InvalidParameterError for a correct 400 response.
3. Align the type codes across all njnu/* routes to reduce user confusion.

Example fix

// before
default:
    throw new Error(`Unknown type: ${type}`);

// after
default:
    throw new InvalidParameterError(`Unknown type: ${type}. Valid: jstz, xwdt, xstz`);

const VALID = new Set(['jstz','xwdt','xstz']);
function buildJwcUrl(type) {
  if (!VALID.has(type)) throw new Error(`Unknown type '${type}'. Valid: ${[...VALID].join(', ')}`);
  return 'http://jwc.njnu.edu.cn/index/' + MAP[type];
}

const isJwcType = (t: string): t is 'jstz'|'xwdt'|'xstz' => VALID.has(t);

When it happens

Trigger: Calling /njnu/jwc/:type with a value not in {jstz, xwdt, xstz} — typo, unknown code, or a category that does not exist for this sub-site.

Common situations: Mistyped category code; assumed codes copied from a different NJNU sub-site that uses different keys.

Related errors

• Unknown type: ${type}
• Invalid type parameter
• Invalid type parameter
• Invalid category: ${category}
• Unsupported region code: ${region}

AI-assisted analysis of DIYgod/RSSHub@bed535e087 (2026-08-12). Data as JSON: /api/errors/ba991bb1629f8fd8. Report an issue: GitHub.