What causes "Invalid Category: ${category}" in DIYgod/RSSHub?

Use the exact Chinese category name as shown in the route's description table (新聞資訊, 港聞, ...).

DIYgod/RSSHub · error · InvalidParameterError

Invalid Category

Error message

Invalid Category: ${category}

What it means

The i-cable route looks up a WordPress category by slug via the `/categories?slug=<category>` endpoint. If the response array is empty (no matching category) it throws InvalidParameterError echoing the supplied category. Categories are matched by their Chinese slug name (e.g. 新聞資訊, 港聞).

Solutions

Use the exact Chinese category name as shown in the route's description table (新聞資訊, 港聞, ...).
Verify the slug by browsing i-cable.com and copying the category label.
Default to 新聞資訊 by omitting the segment.

Example fix

// before
//   /i-cable/news/news
// after
//   /i-cable/news/新聞資訊

Defensive patterns

Strategy: validation

Validate before calling

async function categorySlugExists(category: string): Promise<boolean> {
  const { data } = await got(`https://www.i-cable.com/wp-json/wp/v2/categories?slug=${encodeURIComponent(category)}`);
  return data.length > 0;
}

Prevention

Validate the Chinese slug against the live WP REST API before subscribing.
URL-encode the category — Chinese characters in the path need proper encoding.
Default to 新聞資訊 when the segment is omitted.

When it happens

Trigger: `/i-cable/news/<category>` where <category> is not an existing WP category slug — English names, typos, or renamed categories all produce an empty result.

Common situations: Supplying an English category name instead of the Chinese slug; a typo in the Chinese name; the publisher renamed the category.

Related errors

AI-assisted analysis of DIYgod/RSSHub@bed535e087 (2026-08-12). Data as JSON: /api/errors/55b7045784dd75bf. Report an issue: GitHub.

Appendix: source

Thrown at lib/routes/i-cable/news.tsx:49

        },
    ],
    name: '新聞',
    maintainers: ['quiniapiezoelectricity'],
    handler,
    url: 'www.i-cable.com/',
    description: `::: tip
分類只可用分類名稱，如：新聞資訊 / 港聞
:::`,
};

async function handler(ctx) {
    const category = ctx.req.param('category') ?? '新聞資訊';
    const limit = ctx.req.query('limit') ?? 20;
    const root = 'https://www.i-cable.com/wp-json/wp/v2';

    const response = await cache.tryGet(`${root}/categories?slug=${category}`, async () => await got(`${root}/categories?slug=${category}`), config.cache.routeExpire, false);
    if (response.data.length < 1) {
        throw new InvalidParameterError(`Invalid Category: ${category}`);
    }
    const metadata = response.data[0];

    const list = await got(`${root}/posts?_embed=1&categories=${metadata.id}&per_page=${limit}`);
    const items = list.data.map((item) => {
        const description = renderToString(
            <>
                {item._embedded['wp:featuredmedia']?.length
                    ? item._embedded['wp:featuredmedia'].map((media) => (
                          <figure>
                              <img src={media.source_url} />
                          </figure>
                      ))
                    : null}
                {item.content.rendered ? raw(item.content.rendered) : null}
            </>
        );
        return {

View on GitHub (pinned to bed535e087)