# Partially update a project

PATCH

/v1/projects/{projectId}

```sh
curl --request PATCH \
  --url https://example.com/v1/projects/example \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '{ "name": "example", "slug": "example", "description": "example", "orgId": "example" }'
```

A new `slug`, or a move to another org (`orgId`, or `null` for none), answers `409 slug-conflict` when the slug is taken where the project ends up.

## Authorizations

- **[bearerAuth](https://docs.kindgi.com/v0.1.9/reference/api.md#bearerauth)**

## Parameters

### Path Parameters

**projectId**

required

string

ProjectId — opaque branded string.

### Header Parameters

**Idempotency-Key**

string

\>= 1 characters

Caller-supplied idempotency key, scoped to the caller: the same key from someone else in the tenant is their own request (from 0.1.5). Retries with the same key return the original response byte-identical (per `docs/API-ROUTE-CONVENTIONS.md` §3.1). A retry sent while the first request still runs is answered `409 idempotency-key-in-flight` with `Retry-After`, on a runtime whose store holds keys (from 0.1.5); retry after it, and you get the first request’s answer. An answer that carries a secret (a new API key or public run token, a session token, a generated signing secret) isn’t kept: a retry gets `409 idempotency-key-replay-withheld`, with the first request’s status and when it succeeded (from 0.1.5).

## Request Bodyrequired

application/json

object

**name**

string

\>= 1 characters

**slug**

string

\>= 1 characters

**description**

string

**orgId**

`null` explicitly re-assigns the project out of any org (cross-org).

string | null

##### Examplegenerated

```json
{
  "name": "example",
  "slug": "example",
  "description": "example",
  "orgId": "example"
}
```

## Responses

### 204

Updated. No body.

### 400

Malformed request body.

application/json

object

**error**

required

object

**code**

required

Stable machine-readable discriminant. Values match domain error codes (see `docs/API-ROUTE-CONVENTIONS.md` §4.3).

string

**message**

required

string

**details**

Optional, kind-specific.

object

**_key_**

additional properties

any

**requestId**

required

Server-assigned request id; also echoed via `X-Request-Id` header.

string

##### Examplegenerated

```json
{
  "error": {
    "code": "example",
    "message": "example",
    "details": {},
    "requestId": "example"
  }
}
```

### 401

Missing / malformed / expired / revoked bearer token.

application/json

object

**error**

required

object

**code**

required

Stable machine-readable discriminant. Values match domain error codes (see `docs/API-ROUTE-CONVENTIONS.md` §4.3).

string

**message**

required

string

**details**

Optional, kind-specific.

object

**_key_**

additional properties

any

**requestId**

required

Server-assigned request id; also echoed via `X-Request-Id` header.

string

##### Examplegenerated

```json
{
  "error": {
    "code": "example",
    "message": "example",
    "details": {},
    "requestId": "example"
  }
}
```

### 404

Project-not-found: no project with that id under this tenant; or org-not-found: `orgId` names no org of the tenant (it never existed, or it was deleted).

application/json

object

**error**

required

object

**code**

required

Stable machine-readable discriminant. Values match domain error codes (see `docs/API-ROUTE-CONVENTIONS.md` §4.3).

string

**message**

required

string

**details**

Optional, kind-specific.

object

**_key_**

additional properties

any

**requestId**

required

Server-assigned request id; also echoed via `X-Request-Id` header.

string

##### Examplegenerated

```json
{
  "error": {
    "code": "example",
    "message": "example",
    "details": {},
    "requestId": "example"
  }
}
```

### 409

A reused `Idempotency-Key` with a different body; `slug-conflict` when the `slug` is taken where the project ends up; or `project-in-environment-order` — the project is a member of an environment order, so it can’t be moved to another parent (clear it from the order first).

application/json

object

**error**

required

object

**code**

required

Stable machine-readable discriminant. Values match domain error codes (see `docs/API-ROUTE-CONVENTIONS.md` §4.3).

string

**message**

required

string

**details**

Optional, kind-specific.

object

**_key_**

additional properties

any

**requestId**

required

Server-assigned request id; also echoed via `X-Request-Id` header.

string

##### Examplegenerated

```json
{
  "error": {
    "code": "example",
    "message": "example",
    "details": {},
    "requestId": "example"
  }
}
```

### 413

The request body is over the API’s limit (`request-too-large`; `details.maxBytes` says how much).

application/json

object

**error**

required

object

**code**

required

Stable machine-readable discriminant. Values match domain error codes (see `docs/API-ROUTE-CONVENTIONS.md` §4.3).

string

**message**

required

string

**details**

Optional, kind-specific.

object

**_key_**

additional properties

any

**requestId**

required

Server-assigned request id; also echoed via `X-Request-Id` header.

string

##### Examplegenerated

```json
{
  "error": {
    "code": "example",
    "message": "example",
    "details": {},
    "requestId": "example"
  }
}
```

### 500

Server error (unmapped domain code or framework crash).

application/json

object

**error**

required

object

**code**

required

Stable machine-readable discriminant. Values match domain error codes (see `docs/API-ROUTE-CONVENTIONS.md` §4.3).

string

**message**

required

string

**details**

Optional, kind-specific.

object

**_key_**

additional properties

any

**requestId**

required

Server-assigned request id; also echoed via `X-Request-Id` header.

string

##### Examplegenerated

```json
{
  "error": {
    "code": "example",
    "message": "example",
    "details": {},
    "requestId": "example"
  }
}
```

## See also

- [`GET /v1/projects/{projectId}`: Fetch a project by id](https://docs.kindgi.com/v0.1.9/reference/api/operations/projectsget.md)
- [`DELETE /v1/projects/{projectId}`: Delete a project (idempotent)](https://docs.kindgi.com/v0.1.9/reference/api/operations/projectsdelete.md)
- [`GET /v1/projects/{projectId}/judging-rules`: List a project's judging rules](https://docs.kindgi.com/v0.1.9/reference/api/operations/projectsjudgingruleslist.md)
- [`POST /v1/projects/{projectId}/judging-rules`: Create a judging rule](https://docs.kindgi.com/v0.1.9/reference/api/operations/projectsjudgingrulescreate.md)
- [Error code `project-in-environment-order`](https://docs.kindgi.com/v0.1.9/reference/errors.md#project-in-environment-order)
- [Error code `request-too-large`](https://docs.kindgi.com/v0.1.9/reference/errors.md#request-too-large)
- [Error code `slug-conflict`](https://docs.kindgi.com/v0.1.9/reference/errors.md#slug-conflict)
- [Every error code](https://docs.kindgi.com/v0.1.9/reference/errors.md)