DIYgod/RSSHub · error · InvalidParameterError

invalid type

Error message

invalid type

What it means

Thrown by the USTC SIST (School of Information Science and Technology) route when the `type` path parameter is not found in the internal `map`. The valid types are `tzgg` (通知公告) and `zsgz` (招生工作). This is an `InvalidParameterError` (HTTP 400), indicating the user supplied an unsupported type code.

Source

Thrown at lib/routes/ustc/sist.ts:49

        {
            source: ['sist.ustc.edu.cn/'],
            target: '/sist',
        },
    ],
    name: '信息科学技术学院',
    maintainers: ['jasongzy'],
    handler,
    url: 'sist.ustc.edu.cn/',
    description: `| 通知公告 | 招生工作 |
| -------- | -------- |
| tzgg     | zsgz     |`,
};

async function handler(ctx) {
    const type = ctx.req.param('type') ?? 'tzgg';
    const info = map.get(type);
    if (!info) {
        throw new InvalidParameterError('invalid type');
    }
    const id = info.id;

    const response = await got(`${host}/${id}/list.htm`);
    const $ = load(response.data);
    let items = $('div[portletmode=simpleList]')
        .find('div.card')
        .toArray()
        .map((item): DataItem => {
            const $item = $(item);
            const title = $item.find('.card-title > a').attr('title');
            let link = $item.find('.card-title > a').attr('href');
            link = link!.startsWith('/') ? host + link : link;
            const pubDate = timezone(parseDate($item.find('time').text().replace('发布时间：', ''), 'YYYY-MM-DD'), 8);
            return {
                title: title!,
                pubDate,
                link,

View on GitHub (pinned to bed535e087)

Solutions

1. Use `tzgg` or `zsgz` as the type parameter.
2. Omit the type to default to `tzgg`: `/ustc/sist`.
3. Refer to the route's description table for the authoritative list of valid types.

Example fix

// before
GET /ustc/sist/xyxw
// after
GET /ustc/sist/tzgg

const VALID_TYPES = ['tzgg', 'zsgz'];
if (!VALID_TYPES.includes(type)) {
    throw new InvalidParameterError(`Invalid type: ${type}. Valid types: ${VALID_TYPES.join(', ')}`);
}

function isValidSistType(type: string): type is 'tzgg' | 'zsgz' {
    return ['tzgg', 'zsgz'].includes(type);
}

When it happens

Trigger: A request to `/ustc/sist/:type` where `:type` is neither `tzgg` nor `zsgz`. The parameter defaults to `tzgg` when omitted.

Common situations: Using a type code valid for a different USTC sub-route (e.g. `xyxw` from the math route) but not defined here, or a typo in the two-letter abbreviation.

Related errors

• invalid type
• No topic named ${topic}
• 该公众号不存在，有关如何获取公众号 id，详见 https://docs.rsshub.app/routes/new-m
• 不支持指定类型！
• 不支持指定类型！

AI-assisted analysis of DIYgod/RSSHub@bed535e087 (2026-08-12). Data as JSON: /api/errors/426620d15ab57bd6. Report an issue: GitHub.