# Delete a Project.

Delete a project by given project ID. All its sub projects will be deleted as well.
If the project or any of its sub projects have attendances, the request will fail with a 422 response.

# OpenAPI definition

```json
{
  "openapi": "3.0.0",
  "info": {
    "title": "Attendances API",
    "version": "2.0.0",
    "description": "Endpoints to manage attendance periods, projects and their members."
  },
  "servers": [
    {
      "url": "https://api.personio.de"
    }
  ],
  "security": [
    {
      "BearerAuth": []
    }
  ],
  "tags": [
    {
      "name": "Projects",
      "description": "Endpoints relating to projects that can be associated with attendance periods."
    }
  ],
  "paths": {
    "/v2/projects/{id}": {
      "parameters": [
        {
          "$ref": "#/components/parameters/projectIdParam"
        }
      ],
      "delete": {
        "x-path-examples": {
          "204 DELETE Valid request": {
            "value": "/papi/v2/projects/1234"
          },
          "403 Forbidden response": {
            "value": "/papi/v2/projects/1234"
          },
          "404 Resource Not Found": {
            "value": "/papi/v2/projects/9999"
          },
          "422 Project has attendances": {
            "value": "/papi/v2/projects/1234"
          }
        },
        "tags": [
          "Projects"
        ],
        "summary": "Delete a Project.",
        "description": "Delete a project by given project ID. All its sub projects will be deleted as well.\nIf the project or any of its sub projects have attendances, the request will fail with a 422 response.",
        "responses": {
          "204": {
            "description": "Project deleted successfully.",
            "x-response-example": "204 DELETE Valid request"
          },
          "403": {
            "$ref": "#/components/responses/ForbiddenResponse"
          },
          "404": {
            "$ref": "#/components/responses/NotFoundResponse"
          },
          "422": {
            "$ref": "#/components/responses/DeleteProjectUnprocessableContentErrorResponse"
          }
        }
      }
    }
  },
  "components": {
    "securitySchemes": {
      "BearerAuth": {
        "type": "http",
        "scheme": "bearer"
      }
    },
    "responses": {
      "ForbiddenResponse": {
        "description": "Forbidden",
        "content": {
          "application/problem+json": {
            "schema": {
              "$ref": "#/components/responses/NotFoundResponse/content/application~1problem%2Bjson/schema"
            },
            "examples": {
              "403 Forbidden response": {
                "$ref": "#/components/examples/ForbiddenResponse"
              }
            }
          }
        }
      },
      "NotFoundResponse": {
        "description": "The resource could not be found.",
        "content": {
          "application/problem+json": {
            "schema": {
              "type": "object",
              "description": "This object represents an error response.",
              "properties": {
                "personio_trace_id": {
                  "type": "string",
                  "example": "aswo3f-a202lfso-312123sld-1230ddd",
                  "description": "A unique ID that was created for this error."
                },
                "timestamp": {
                  "type": "string",
                  "format": "date-time",
                  "example": "2021-05-28T11:17:30.000Z",
                  "description": "The timestamp of when the error occurred."
                },
                "errors": {
                  "type": "array",
                  "items": {
                    "type": "object",
                    "properties": {
                      "title": {
                        "type": "string",
                        "example": "Not found",
                        "description": "The title of the error."
                      },
                      "detail": {
                        "type": "string",
                        "example": "The requested resource was not found.",
                        "description": "A short description about the error."
                      },
                      "type": {
                        "type": "string",
                        "format": "uri",
                        "example": "https://developer.personio.de/reference/errors#common.requested_resource_not_found",
                        "description": "A link to the developer hub where more information can be found for the encountered error."
                      },
                      "_meta": {
                        "type": "object",
                        "additionalProperties": {
                          "type": "string"
                        }
                      }
                    }
                  }
                }
              }
            },
            "examples": {
              "404 Resource Not Found": {
                "$ref": "#/components/examples/NotFoundResponse"
              }
            }
          }
        }
      },
      "DeleteProjectUnprocessableContentErrorResponse": {
        "description": "Unprocessable content.",
        "content": {
          "application/problem+json": {
            "schema": {
              "$ref": "#/components/responses/NotFoundResponse/content/application~1problem%2Bjson/schema"
            },
            "examples": {
              "422 Project has attendances": {
                "$ref": "#/components/examples/ProjectHasAttendancesResponse"
              }
            }
          }
        }
      }
    },
    "examples": {
      "ForbiddenResponse": {
        "value": {
          "personio_trace_id": "aswo3f-a202lfso-312123sld-1230ddd",
          "timestamp": "2021-05-28T11:17:30+00:00",
          "errors": [
            {
              "title": "Access denied",
              "detail": "Access denied to perform attendance period operations.",
              "type": "https://developer.personio.de/reference/errors#common.forbidden_response"
            }
          ]
        }
      },
      "NotFoundResponse": {
        "value": {
          "personio_trace_id": "aswo3f-a202lfso-312123sld-1230ddd",
          "timestamp": "2021-05-28T11:17:30+00:00",
          "errors": [
            {
              "title": "Resource not found",
              "detail": "The requested resource is not found.",
              "type": "https://developer.personio.de/reference/errors#common.resource_not_found"
            }
          ]
        }
      },
      "ProjectHasAttendancesResponse": {
        "value": {
          "personio_trace_id": "aswo3f-a202lfso-312123sld-1230ddd",
          "timestamp": "2021-05-28T11:17:30Z",
          "errors": [
            {
              "title": "Project has attendances.",
              "detail": "The project has attendance periods associated with it and cannot be deleted."
            }
          ]
        }
      }
    }
  }
}
```