---
title: "Get Kg Lineage Arcs"
method: GET
path: "/api/kg/lineage-arcs"
tags: ["knowledge-graph"]
---

# Get Kg Lineage Arcs

`GET /api/kg/lineage-arcs`

## Request

- Base URL: `https://fojin.app` (the document declares no server; this is the origin it was published from)
- URL: `https://fojin.app/api/kg/lineage-arcs`
- Auth: none declared

Get teacher-student lineage arcs with coordinates for map visualization.

获取师承传法弧线及坐标，用于地图可视化。

## Query parameters

- `school` string, nullable
- `year_start` integer, nullable
- `year_end` integer, nullable
- `limit` integer

## Response `200`

Successful Response

- KGLineageArcsResponse
  - `arcs` KGLineageArc[], required
    - `teacher_id` integer, required
    - `teacher_name` string, required
    - `teacher_lat` number, required
    - `teacher_lng` number, required
    - `student_id` integer, required
    - `student_name` string, required
    - `student_lat` number, required
    - `student_lng` number, required
    - `year` integer, nullable
    - `school` string, nullable
  - `total` integer, required

## Other responses

- `422`: Validation Error

---

[API](https://skmtc.dev/fojin/apis/fojin-api-buddhist-digital-text-platform.md) · [All operations](https://skmtc.dev/fojin/apis/fojin-api-buddhist-digital-text-platform/llms.txt) · [OpenAPI document](https://skmtc.dev/fojin/apis/fojin-api-buddhist-digital-text-platform/revisions/969714238c61?raw)