tesouro-direto-mcp/dist/resources/index.js

Model Context Protocol (MCP) server for Tesouro Direto API integration

import { getApiDataWithCache } from "../cache/apiCache.js";
import { logger } from "../utils/logger.js";
// Define resource URI patterns
const MARKET_RESOURCE_URI = "tesourodireto://market";
const BOND_RESOURCE_URI_PREFIX = "tesourodireto://bond/";
/**
 * List available resources
 */
export async function getResourcesList() {
    try {
        const data = await getApiDataWithCache("resource listing");
        // Create the base resources list
        const resources = [
            {
                uri: MARKET_RESOURCE_URI,
                name: "Tesouro Direto Market Data"
            }
        ];
        // Add bond resources
        data.TrsrBdTradgList.forEach(bond => {
            resources.push({
                uri: `${BOND_RESOURCE_URI_PREFIX}${bond.TrsrBd.cd}`,
                name: `${bond.TrsrBd.nm} (${bond.TrsrBd.isinCd})`
            });
        });
        logger.info(`Listed ${resources.length} resources`);
        return { resources };
    }
    catch (error) {
        logger.error("Error listing resources:", error);
        throw new Error("Failed to list resources");
    }
}
/**
 * Get content for a specific resource
 */
export async function getResourceContent(uri) {
    try {
        if (uri === MARKET_RESOURCE_URI) {
            return await getMarketResourceContent();
        }
        if (uri.startsWith(BOND_RESOURCE_URI_PREFIX)) {
            const bondCode = parseInt(uri.substring(BOND_RESOURCE_URI_PREFIX.length), 10);
            return await getBondResourceContent(bondCode);
        }
        throw new Error(`Resource not found: ${uri}`);
    }
    catch (error) {
        logger.error(`Error reading resource ${uri}:`, error);
        throw new Error(`Failed to read resource: ${uri}`);
    }
}
/**
 * Get market resource content
 */
async function getMarketResourceContent() {
    const data = await getApiDataWithCache("market resource");
    const { TrsrBondMkt, BizSts } = data;
    return {
        contents: [{
                uri: MARKET_RESOURCE_URI,
                text: JSON.stringify({
                    market_status: {
                        opening_time: TrsrBondMkt.opngDtTm,
                        closing_time: TrsrBondMkt.clsgDtTm,
                        quotation_time: TrsrBondMkt.qtnDtTm,
                        status_code: TrsrBondMkt.stsCd,
                        status: TrsrBondMkt.sts
                    },
                    business_status: {
                        code: BizSts.cd,
                        timestamp: BizSts.dtTm
                    }
                }, null, 2)
            }]
    };
}
/**
 * Get bond resource content
 */
async function getBondResourceContent(bondCode) {
    const data = await getApiDataWithCache(`bond ${bondCode}`);
    const bondItem = data.TrsrBdTradgList.find(item => item.TrsrBd.cd === bondCode);
    if (!bondItem) {
        throw new Error(`Bond with code ${bondCode} not found`);
    }
    const { TrsrBd, TrsrBdType } = bondItem;
    return {
        contents: [{
                uri: `${BOND_RESOURCE_URI_PREFIX}${bondCode}`,
                text: JSON.stringify({
                    code: TrsrBd.cd,
                    name: TrsrBd.nm,
                    features: TrsrBd.featrs,
                    maturity_date: TrsrBd.mtrtyDt,
                    minimum_investment_amount: TrsrBd.minInvstmtAmt,
                    unitary_investment_value: TrsrBd.untrInvstmtVal,
                    investment_stability: TrsrBd.invstmtStbl,
                    semiannual_interest_indicator: TrsrBd.semiAnulIntrstInd,
                    receiving_income: TrsrBd.rcvgIncm,
                    annual_investment_rate: TrsrBd.anulInvstmtRate,
                    annual_redemption_rate: TrsrBd.anulRedRate,
                    minimum_redemption_quantity: TrsrBd.minRedQty,
                    unitary_redemption_value: TrsrBd.untrRedVal,
                    minimum_redemption_value: TrsrBd.minRedVal,
                    isin_code: TrsrBd.isinCd,
                    financial_index: {
                        code: TrsrBd.FinIndxs.cd,
                        name: TrsrBd.FinIndxs.nm
                    },
                    treasury_bond_type: {
                        code: TrsrBdType.cd,
                        name: TrsrBdType.nm,
                        custody_rate: TrsrBdType.ctdyRate,
                        gross_price: TrsrBdType.grPr
                    }
                }, null, 2)
            }]
    };
}