Outlook MCP Server

/**
 * OData helper functions for Microsoft Graph API
 */

/**
 * Escapes a string for use in OData queries
 * @param str - The string to escape
 * @returns The escaped string
 */
export function escapeODataString(str: string | null | undefined): string {
	if (!str) {
		return str ?? "";
	}

	// Replace single quotes with double single quotes (OData escaping)
	// And remove any special characters that could cause OData syntax errors
	let escaped = str.replace(/'/g, "''");

	// Escape other potentially problematic characters
	escaped = escaped.replace(/[(){}[\]:;,/?&=+*%$#@!^]/g, "");

	console.error(`Escaped OData string: '${escaped}'`);
	return escaped;
}

/**
 * Builds an OData filter from filter conditions
 * @param conditions - Array of filter conditions
 * @returns Combined OData filter expression
 */
export function buildODataFilter(conditions: string[]): string {
	if (!conditions || conditions.length === 0) {
		return "";
	}

	return conditions.join(" and ");
}