---
title: "List train schedule linkings whose target or source is part of the input train schedules"
method: POST
path: "/train_schedules/linkings"
tags: ["linkings"]
---

# List train schedule linkings whose target or source is part of the input train schedules

`POST /train_schedules/linkings`

## Request

- Base URL: `https://demo.osrd.fr/api`
- URL: `https://demo.osrd.fr/api/train_schedules/linkings`
- Auth: none declared

## Request body

- object
  - `timetable_id` integer, required
  - `train_schedules` integer[], required

## Response `200`

The linkings for a given timetable and given train schedules.

- object[]
  - `id` integer, required
  - `source` union, required
    - object
      - `train_schedule_id` integer, required
      - `train_schedule_instance_index` integer, nullable
      - `type` 'unique', required
    - object
      - `occurrence_index` integer, required
      - `train_schedule_id` integer, required
      - `train_schedule_instance_index` integer, nullable
      - `type` 'paced_occurrence', required
    - object
      - `added_exception_id` integer, required
      - `train_schedule_id` integer, required
      - `train_schedule_instance_index` integer, nullable
      - `type` 'added_exception', required
  - `target` union, required
    - object
      - `train_schedule_id` integer, required
      - `train_schedule_instance_index` integer, nullable
      - `type` 'unique', required
    - object
      - `occurrence_index` integer, required
      - `train_schedule_id` integer, required
      - `train_schedule_instance_index` integer, nullable
      - `type` 'paced_occurrence', required
    - object
      - `added_exception_id` integer, required
      - `train_schedule_id` integer, required
      - `train_schedule_instance_index` integer, nullable
      - `type` 'added_exception', required

## Other responses

- `404`: Timetable doesn't exist.

## Changes

- **2026-08-03** `1840dbbd64ac`: 1 info
  - endpoint added
- **2026-08-03** `dff80f0a6343`: 1 breaking
  - api path removed without deprecation
- **2026-07-31** `f50835ffc9de`: 1 info
  - endpoint added
- **2026-07-29** `62dbae65a593`: 1 breaking
  - api path removed without deprecation
- **2026-07-29** `dafac3d6d58f`: 1 info
  - endpoint added

[Operation history](https://skmtc.dev/openrailassociation/apis/osrd-editoast/changes/train_schedules/linkings/post.md)

---

[API](https://skmtc.dev/openrailassociation/apis/osrd-editoast.md) - [All operations](https://skmtc.dev/openrailassociation/apis/osrd-editoast/llms.txt) - [OpenAPI document](https://skmtc.dev/openrailassociation/apis/osrd-editoast/revisions/7c72c5e1bc0e?raw)