DIYgod/RSSHub · warning · InvalidParameterError

type not supported

Error message

type not supported

What it means

InvalidParameterError thrown by the UESTC 研究生院 (gr) route when ctx.req.param('type') is not an own property of typeUrlMap. Supported types are important, teaching, degree, student, practice; Object.hasOwn() is used so inherited keys cannot bypass the check.

Source

Thrown at lib/routes/uestc/gr.ts:63

    radar: [
        {
            source: ['gr.uestc.edu.cn/'],
        },
    ],
    name: '研究生院',
    maintainers: ['huyyi', 'mobyw'],
    handler,
    url: 'gr.uestc.edu.cn/',
    description: `\
| 重要公告  | 教学管理 | 学位管理 | 学生管理 | 就业实践 |
| --------- | -------- | -------- | -------- | -------- |
| important | teaching | degree   | student  | practice |`,
};

async function handler(ctx: Context): Promise<Data> {
    const type = ctx.req.param('type') || 'important';
    if (!Object.hasOwn(typeUrlMap, type)) {
        throw new InvalidParameterError('type not supported');
    }
    const typeName = typeNameMap[type];

    const indexContent = await ofetch(baseUrl + typeUrlMap[type]);

    const $ = load(indexContent);
    const entries = $('div.title').toArray();

    const items = entries.map(async (entry) => {
        const element = $(entry);
        const newsTitle = element.find('a').text();
        const newsLink = detailUrl + element.find('a').attr('href');

        const newsDetail = await cache.tryGet(newsLink, async () => {
            const newsContent = await ofetch(newsLink);
            const content = load(newsContent);

            const basicInfo = content('div.topic_detail_header').find('div.info').text();

View on GitHub (pinned to bed535e087)

Solutions

  1. Use one of: important, teaching, degree, student, practice.
  2. Omit :type to default to 'important'.
  3. Update saved feed URLs to the current slugs.

Example fix

// before
// /uestc/gr/xuewei
// after
// /uestc/gr/degree
Defensive patterns

Strategy: type-guard

Validate before calling

const GR_TYPES = new Set(['important', 'teaching', 'degree', 'student', 'practice']);
function isValidGrType(t: string | undefined): boolean {
  return t === undefined || GR_TYPES.has(t);
}

Type guard

type GrType = 'important' | 'teaching' | 'degree' | 'student' | 'practice';
function isGrType(t: string): t is GrType { return GR_TYPES.has(t); }

Prevention

When it happens

Trigger: Requesting /uestc/gr/<type> with a slug outside the five supported values. Default is 'important', so the error implies an explicit bad value was supplied.

Common situations: User inferred a slug from the Chinese category names but did not match the documented English key; renamed slug; stale bookmark.

Related errors

AI-assisted analysis of DIYgod/RSSHub@bed535e087 (2026-08-12). Data as JSON: /api/errors/dfed19994b81b963. Report an issue: GitHub.