DIYgod/RSSHub · error · Error

未知的金属类型

Error message

未知的金属类型

What it means

The 长江有色网 price-adjustment route maps the `category` path parameter to a per-metal subdomain through SUB_DOMAIN_MAP (keys: copper, alu, zn, sn, pb, ni). Any value that is not a key yields undefined, and the handler throws a generic Error with the Chinese message '未知的金属类型' ('unknown metal type') before issuing the request. Note the codes are short forms (alu, not aluminium).

Source

Thrown at lib/routes/ccmn/price-adjustment.tsx:91

    pb: 'pb.ccmn.cn',
    ni: 'ni.ccmn.cn',
};

const READABLE_CATEGORIES = {
    copper: '铜',
    alu: '铝',
    zn: '锌',
    sn: '锡',
    pb: '铅',
    ni: '镍',
};

async function handler(ctx) {
    const category = ctx.req.param('category');

    const subdomain = SUB_DOMAIN_MAP[category];
    if (!subdomain) {
        throw new Error('未知的金属类型');
    }

    const url = `https://${subdomain}`;

    const response = await got({
        method: 'get',
        url,
    });

    const $ = load(response.data);

    const items = $('.content1-text-div')
        .toArray()
        .map((item) => {
            const $item = $(item);
            const dataId = $item.attr('data-id');

            const $top = $item.find('.top');

View on GitHub (pinned to bed535e087)

Solutions

1. Use one of the six supported codes: copper, alu, zn, sn, pb, ni.
2. Cross-check the value against the route's `parameters.category.options` list declared in the route config.
3. For a new metal, confirm ccmn has a dedicated subdomain and add a SUB_DOMAIN_MAP entry.

Example fix

// before
//   /ccmn/price-adjustment/aluminium
// after
//   /ccmn/price-adjustment/alu

const KNOWN_METALS = new Set(['copper', 'alu', 'zn', 'sn', 'pb', 'ni']);
function isKnownMetal(category: string): boolean {
  return KNOWN_METALS.has(category);
}

function isKnownMetal(category: string): category is keyof typeof SUB_DOMAIN_MAP {
  return Object.prototype.hasOwnProperty.call(SUB_DOMAIN_MAP, category);
}

When it happens

Trigger: Requesting `/ccmn/price-adjustment/<x>` where <x> is not one of copper, alu, zn, sn, pb, ni — e.g. `/ccmn/price-adjustment/iron` or `/ccmn/price-adjustment/aluminium`.

Common situations: Supplying the full English name (aluminium, tin, lead, nickel) or the Chinese metal name instead of the documented short code; typos; copy-pasting a path segment from the source site that differs from the route code.

Related errors

• Language parameter is not valid. Please use one of the follo
• Bad timeRange range. See <a href="https://docs.rsshub.app/ro
• This category does not exist. Please refer to the documentat
• Invalid category Id: ${categoryId}
• Invalid sort type: ${sortType}

AI-assisted analysis of DIYgod/RSSHub@bed535e087 (2026-08-12). Data as JSON: /api/errors/ebce61402937d29e. Report an issue: GitHub.