Generate URL for oneToMany using comma separated style for many-array

src/lib/api.ts

@@ -1,7 +1,7 @@
 import type { Company, Vehicle } from './types';
 import { Coordinates, Location } from './location';
 import { MAX_MATCHING_DISTANCE, MAX_TRAVEL_SECONDS, MOTIS_BASE_URL } from './constants';
-import { coordinatesToPlace, coordinatesToStr } from './motisUtils';
+import { coordinatesToPlace, coordinatesToStr, customQuerySerializer } from './motisUtils';
 import { type Duration, type PlanResponse } from './motis/types.gen';
 import { oneToMany as oneToManyMotis, plan as planMotis } from './motis/services.gen';
 import { secondsToMs } from './time_utils';
@@ -122,6 +122,7 @@ export const oneToMany = async (
 ): Promise<number[]> => {
 	return await oneToManyMotis({
 		baseUrl: MOTIS_BASE_URL,
+		querySerializer: customQuerySerializer,
 		query: {
 			one: coordinatesToStr(one),
 			many: many.map(coordinatesToStr),

src/lib/motisUtils.ts

@@ -7,3 +7,31 @@ export const coordinatesToStr = (c: Coordinates) => {
 export const coordinatesToPlace = (c: Coordinates) => {
 	return `${c.lat},${c.lng},0`;
 };
+
+export const customQuerySerializer = (params: Record<string, unknown>): string => {
+	const qs: string[] = [];
+
+	const append = (key: string, value: unknown) => {
+		qs.push(`${encodeURIComponent(key)}=${encodeURIComponent(String(value))}`);
+	};
+
+	const encodePair = (key: string, value: unknown) => {
+		if (value === undefined || value === null) {
+			return;
+		}
+
+		if (value instanceof Date) {
+			append(key, value.toISOString());
+		} else if (Array.isArray(value)) {
+			append(key, value.join(','));
+		} else if (typeof value === 'object') {
+			Object.entries(value).forEach(([k, v]) => encodePair(`${key}[${k}]`, v));
+		} else {
+			append(key, value);
+		}
+	};
+
+	Object.entries(params).forEach(([key, value]) => encodePair(key, value));
+
+	return qs.length ? `?${qs.join('&')}` : '';
+};