/**
* @file Accounts Resource Handler
* @version 1.0.0
* @description Handles Brex accounts resource requests
*/
import { Server } from "@modelcontextprotocol/sdk/server/index.js";
import { ReadResourceRequestSchema } from "@modelcontextprotocol/sdk/types.js";
import { ResourceTemplate } from "../models/resourceTemplate.js";
import { logDebug, logError } from "../utils/logger.js";
import { BrexClient } from "../services/brex/client.js";
import { isBrexAccount } from "../services/brex/types.js";
// Get Brex client
function getBrexClient(): BrexClient {
return new BrexClient();
}
// Define account resource template
const accountsTemplate = new ResourceTemplate("brex://accounts{/id}");
/**
* Registers the accounts resource handler with the server
* @param server The MCP server instance
*/
export function registerAccountsResource(server: Server): void {
server.registerCapabilities({
resources: {
"brex://accounts{/id}": {
description: "Brex accounts",
mimeTypes: ["application/json"],
}
}
});
// Use the standard approach with setRequestHandler
server.setRequestHandler(ReadResourceRequestSchema, async (request, extra) => {
const uri = request.params.uri;
// Check if this handler should process this URI
if (!uri.startsWith("brex://accounts")) {
return { handled: false }; // Not handled by this handler
}
logDebug(`Reading account resource: ${uri}`);
// Get Brex client
const brexClient = getBrexClient();
// Parse parameters from URI
const params = accountsTemplate.parse(uri);
if (!params.id) {
// List all accounts
try {
logDebug("Fetching all accounts from Brex API");
const accounts = await brexClient.getAccounts();
logDebug(`Successfully fetched ${accounts.items.length} accounts`);
return {
contents: [{
uri: uri,
mimeType: "application/json",
text: JSON.stringify(accounts.items, null, 2)
}]
};
} catch (error) {
logError(`Failed to fetch accounts: ${error instanceof Error ? error.message : String(error)}`);
throw error;
}
} else {
// Get specific account
try {
logDebug(`Fetching account ${params.id} from Brex API`);
const account = await brexClient.getAccount(params.id);
if (!isBrexAccount(account)) {
logError(`Invalid account data received for account ID: ${params.id}`);
throw new Error('Invalid account data received');
}
logDebug(`Successfully fetched account ${params.id}`);
return {
contents: [{
uri: uri,
mimeType: "application/json",
text: JSON.stringify(account, null, 2)
}]
};
} catch (error) {
logError(`Failed to fetch account ${params.id}: ${error instanceof Error ? error.message : String(error)}`);
throw error;
}
}
});
}
