feat: Initial clean release of CHM

packages/lib/services/rest/utils/requestPaginationOptions.ts

@@ -0,0 +1,23 @@
+import { Pagination, PaginationOrder, PaginationOrderDir } from '../../../models/utils/types';
+import { Request } from '../Api';
+import { ErrorBadRequest } from './errors';
+
+function requestPaginationOrder(request: Request): PaginationOrder[] {
+	const orderBy: string = request.query.order_by ? request.query.order_by : 'updated_time';
+	const orderDir: PaginationOrderDir = request.query.order_dir ? request.query.order_dir : PaginationOrderDir.ASC;
+
+	return [{
+		by: orderBy,
+		dir: orderDir,
+		caseInsensitive: true,
+	}];
+}
+
+export default function(request: Request): Pagination {
+	const limit = request.query.limit ? request.query.limit : 100;
+	if (limit < 0 || limit > 100) throw new ErrorBadRequest(`Limit out of bond: ${limit}`);
+	const order: PaginationOrder[] = requestPaginationOrder(request);
+	const page: number = request.query.page || 1;
+
+	return { limit, order, page };
+}