---
title: "PUT /public/kafka/v2/cluster/{cluster}/subject"
method: PUT
path: "/public/kafka/v2/cluster/{cluster}/subject"
tags: ["cli_subject_kafka_v2_13"]
---

# PUT /public/kafka/v2/cluster/{cluster}/subject

`PUT /public/kafka/v2/cluster/{cluster}/subject`

## Request

- Base URL: `https://developers.conduktor.io` (the document declares no server; this is the origin it was published from)
- URL: `https://developers.conduktor.io/public/kafka/v2/cluster/{cluster}/subject`
- Auth: HTTP bearer
- TypeScript: <https://skmtc.dev/conduktor/apis/conduktor-console-api/docs/public/kafka/v2/cluster/:cluster/subject/put.ts> (a function with typed inputs; its response is checked against the schema)

Create or update a Subject

## Path parameters

- `cluster` string, required

## Query parameters

- `dryMode` boolean

## Request body

- SubjectResourceV2
  - `apiVersion` string, required
  - `kind` 'Subject', required
  - `metadata` SubjectMetadata, required
    - `name` string, required
    - `cluster` string, required
    - `labels` MapLabelKeyString
  - `spec` SubjectSpec, required
    - `format` 'AVRO' | 'JSON' | 'PROTOBUF', required
    - `compatibility` 'BACKWARD' | 'BACKWARD_TRANSITIVE' | 'FORWARD' | 'FORWARD_TRANSITIVE' | 'FULL' | 'FULL_TRANSITIVE' | 'NONE'
    - `schema` string, required
    - `id` integer
    - `version` integer
    - `references` SchemaReference[]
      - `name` string, required
      - `subject` string, required
      - `version` integer, required
    - `guid` string

## Response `200`

- SubjectApplyResultV2
  - `resource` SubjectResourceV2, required
    - `apiVersion` string, required
    - `kind` 'Subject', required
    - `metadata` SubjectMetadata, required
      - `name` string, required
      - `cluster` string, required
      - `labels` MapLabelKeyString
    - `spec` SubjectSpec, required
      - `format` 'AVRO' | 'JSON' | 'PROTOBUF', required
      - `compatibility` 'BACKWARD' | 'BACKWARD_TRANSITIVE' | 'FORWARD' | 'FORWARD_TRANSITIVE' | 'FULL' | 'FULL_TRANSITIVE' | 'NONE'
      - `schema` string, required
      - `id` integer
      - `version` integer
      - `references` SchemaReference[]
        - `name` string, required
        - `subject` string, required
        - `version` integer, required
      - `guid` string
  - `upsertResult` 'Created' | 'Updated' | 'NotChanged', required

## Other responses

- `400`: The request is not valid
- `401`: The user is not authenticated
- `403`: The user doesn't have sufficient privilege to do this operation
- `404`: No subject with this technical id exists
- `409`: The request does not match one of the business rules
- `500`: An unexpected error occurred in the server

---

[API](https://skmtc.dev/conduktor/apis/conduktor-console-api.md) - [All operations](https://skmtc.dev/conduktor/apis/conduktor-console-api/llms.txt) - [OpenAPI document](https://skmtc.dev/conduktor/apis/conduktor-console-api/revisions/24750c294805?raw)