---
title: "Given A Data Element, Find Other Data Elements That Have The Same Object Class - Q18A"
method: GET
path: "/data_elements/object_class_peers"
tags: ["Data Elements"]
---

# Given A Data Element, Find Other Data Elements That Have The Same Object Class - Q18A

`GET /data_elements/object_class_peers`

## Request

- Base URL: `https://cadsrapi.cancer.gov/si-api/v1`
- URL: `https://cadsrapi.cancer.gov/si-api/v1/data_elements/object_class_peers`
- Auth: none declared
- TypeScript: <https://skmtc.dev/cancer/apis/ssis-api/docs/data_elements/object_class_peers/get.ts> (a function with typed inputs; its response is checked against the schema)

Given a data element, find other data elements that have the same Object Class. Same object class means the other data elements and the given data element have same main and minor concepts.

## Query parameters

- `graph_name` string, required
- `given_id` string, required
- `resource_name` string, required

## Response `200`

OK

- DataElementsobjectClassPeersGETResponse
  - `results` ObjectClass[], required
    - `entity` string, required
    - `identifier` string, required
    - `preferred_term` string, required
  - `apiResponse` ApiResponse, required
    - `type` string, required: S Success, E Error, W Warning, I Info, A Abort
    - `message` string: Message text
    - `service` string: service that errorred
    - `time` string: Date and time of error
    - `ssnid` string: session id
    - `callStack` CallstackItem[]
      - `service` string, required
      - `flowStep` string, required

## Other responses

- `401`: Access Denied

---

[API](https://skmtc.dev/cancer/apis/ssis-api.md) - [All operations](https://skmtc.dev/cancer/apis/ssis-api/llms.txt) - [OpenAPI document](https://skmtc.dev/cancer/apis/ssis-api/revisions/1e6df122366f?raw)