Get Top Losers
get_top_losersRetrieve the top 10 losing stocks from the Colombo Stock Exchange for the current trading day. Get real-time data on price declines and change percentages.
Instructions
Get the top 10 losing stocks in the CSE for the current trading day.
Input Schema
TableJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
No arguments | |||
Implementation Reference
- src/index.ts:233-263 (handler)The actual handler function `getTopLosers()` that fetches top losing stocks from the CSE API endpoint 'https://www.cse.lk/api/topLooses' and returns mapped stock data (symbol, price, change, changePercentage).
async function getTopLosers() { try { const response = await axios.post( 'https://www.cse.lk/api/topLooses', {}, { headers: { 'Content-Type': 'application/json' }, timeout: 10000 } ); const data = response.data || []; return data.map((item: any) => ({ symbol: item.symbol, price: item.price, change: item.change, changePercentage: item.changePercentage })); } catch (error: any) { if (error.code === 'ECONNABORTED') { throw new Error('Request timed out. Please try again.'); } else if (error.response) { throw new Error(`API error: ${error.response.status} - ${error.response.statusText}`); } else { throw new Error(`Network error: ${error.message}`); } } } - src/index.ts:511-515 (schema)Schema definition for the tool. Input schema is empty (no inputs required).
{ title: "Get Top Losers", description: "Get the top 10 losing stocks in the CSE for the current trading day.", inputSchema: {} }, - src/index.ts:509-552 (registration)Tool registration via `server.registerTool('get_top_losers', {...})` with the handler that formats and returns top losers data.
server.registerTool( "get_top_losers", { title: "Get Top Losers", description: "Get the top 10 losing stocks in the CSE for the current trading day.", inputSchema: {} }, async () => { try { const topLosers = await getTopLosers(); const formattedLosers = topLosers.map((stock: any, index: number) => { const priceChangeSymbol = stock.change >= 0 ? '+' : ''; return { rank: index + 1, symbol: stock.symbol, price: `Rs. ${stock.price.toFixed(2)}`, change: `${priceChangeSymbol}${stock.change.toFixed(2)}`, changePercentage: `${priceChangeSymbol}${stock.changePercentage.toFixed(2)}%` }; }); return { content: [{ type: "text", text: JSON.stringify({ title: "Top 10 Losers", count: formattedLosers.length, losers: formattedLosers, lastUpdated: new Date().toISOString() }, null, 2) }] }; } catch (error: any) { return { content: [{ type: "text", text: `Error fetching top losers: ${error.message}` }], isError: true }; } } );